Contacts of the helix formed by residues 1993 - 2023 (chain A) in PDB entry 4D0O


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with LYS1993 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1992A  GLN*     1.3    78.1    +      -       -      +
   1994A  LYS*     1.3    67.6    +      -       -      +
   1995A  ASP*     3.3     4.9    -      -       +      +
   1996A  VAL*     3.1    19.9    +      -       +      +
   1997A  VAL*     3.0    20.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1994 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1992A  GLN      3.8     0.6    +      -       -      -
   1993A  LYS*     1.3    72.5    -      -       -      +
   1995A  ASP*     1.3    58.1    +      -       -      +
   1997A  VAL*     3.4     8.9    +      -       -      +
   1998A  LYS*     3.0    30.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1995 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1993A  LYS*     3.3     3.9    -      -       +      +
   1994A  LYS*     1.3    78.4    -      -       -      +
   1996A  VAL*     1.3    61.7    +      -       +      +
   1998A  LYS*     3.9     6.7    -      -       -      +
   1999A  ARG*     3.1    27.0    +      -       -      +
   2167A  CYS*     4.1    16.3    -      -       -      +
   2169A  LYS*     5.7     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1996 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1989A  LEU*     5.3     0.4    -      -       +      -
   1992A  GLN*     4.3    17.0    -      -       +      +
   1993A  LYS*     3.1    23.0    +      -       +      +
   1995A  ASP*     1.3    77.2    -      -       +      +
   1997A  VAL*     1.3    59.9    +      -       -      +
   1998A  LYS      3.2     0.2    -      -       -      -
   1999A  ARG*     3.2     6.2    +      -       +      +
   2000A  GLN*     2.9    46.1    +      -       +      +
   2077A  LEU*     4.2    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1997 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1989A  LEU*     3.2    45.2    -      -       +      +
   1990A  LYS*     4.5     8.1    -      -       -      +
   1992A  GLN*     3.9    11.7    -      -       +      +
   1993A  LYS      3.0    17.9    +      -       -      +
   1994A  LYS*     3.4    11.6    +      -       -      +
   1996A  VAL*     1.3    75.3    -      -       -      +
   1998A  LYS*     1.3    59.3    +      -       -      +
   2000A  GLN*     4.0     1.4    -      -       -      +
   2001A  GLU*     3.0    48.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1998 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1994A  LYS      3.0    18.8    +      -       -      +
   1995A  ASP*     3.9     7.6    -      -       -      +
   1997A  VAL*     1.3    78.5    -      -       -      +
   1999A  ARG*     1.3    61.8    +      -       -      +
   2001A  GLU*     3.2    13.3    +      -       +      +
   2002A  VAL*     3.1    31.3    +      -       +      +
   2163A  ARG*     6.1     2.0    -      -       -      +
   2167A  CYS*     3.9    18.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1999 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1995A  ASP      3.1    18.6    +      -       -      +
   1996A  VAL*     3.2     6.9    +      -       -      +
   1998A  LYS*     1.3    77.4    -      -       -      +
   2000A  GLN*     1.3    66.8    +      -       -      +
   2002A  VAL*     3.4     3.7    +      -       -      +
   2003A  ILE*     3.1    39.8    +      -       +      +
   2078A  ILE      2.7    30.3    +      -       -      -
   2079A  LYS*     3.5    17.7    +      -       -      +
   2081A  ILE*     4.3     0.8    -      -       -      +
   2164A  ILE*     4.2     9.2    -      -       +      +
   2167A  CYS*     3.8    20.1    -      -       +      +
   2168A  THR*     2.9    37.8    +      -       -      +
   2171A  ASN*     5.7     0.7    -      -       -      -
   2174A  GLU*     2.6    43.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN2000 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1980A  TRP*     5.0     2.9    +      -       -      -
   1984A  ILE*     3.9     6.2    -      -       +      +
   1989A  LEU*     3.9    31.0    -      -       +      -
   1996A  VAL*     2.9    26.7    +      -       +      +
   1997A  VAL      4.0     0.7    -      -       -      +
   1999A  ARG*     1.3    86.7    -      -       -      +
   2001A  GLU*     1.3    58.0    +      -       -      +
   2003A  ILE*     3.6     7.2    +      -       -      +
   2004A  TYR*     3.0    27.9    +      -       -      +
   2076A  PHE*     4.6     4.0    -      -       -      -
   2077A  LEU*     3.6    20.4    -      -       +      +
   2078A  ILE*     2.7    60.5    +      -       -      +
   2079A  LYS*     6.0     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU2001 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1984A  ILE*     4.2    34.9    -      -       +      +
   1989A  LEU*     5.0     3.2    -      -       +      +
   1997A  VAL*     3.0    36.7    +      -       -      +
   1998A  LYS*     3.4    13.5    -      -       +      +
   1999A  ARG      3.2     0.4    -      -       -      -
   2000A  GLN*     1.3    77.2    -      -       -      +
   2002A  VAL*     1.3    62.7    +      -       +      +
   2004A  TYR*     3.5     7.9    -      -       +      +
   2005A  GLU*     3.3    19.2    +      -       -      +
   2201B  LYS*     5.9     6.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL2002 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1998A  LYS*     3.1    20.0    +      -       +      +
   1999A  ARG*     3.9     4.7    -      -       -      +
   2001A  GLU*     1.3    76.2    -      -       +      +
   2003A  ILE*     1.3    66.0    +      -       -      +
   2005A  GLU*     3.2     8.0    +      -       +      +
   2006A  LEU*     3.2    20.4    +      -       -      +
   2160A  LEU*     3.8     7.9    -      -       +      +
   2163A  ARG*     3.6    53.6    -      -       +      +
   2164A  ILE*     3.5    26.4    -      -       +      +
   2167A  CYS*     4.1    16.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE2003 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1980A  TRP*     4.0    22.2    -      -       +      -
   1999A  ARG*     3.1    51.6    +      -       +      +
   2000A  GLN*     4.0     8.1    -      -       -      +
   2002A  VAL*     1.3    73.1    -      -       -      +
   2004A  TYR*     1.3    66.1    +      -       -      +
   2006A  LEU*     3.4     7.4    +      -       +      +
   2007A  MET*     3.2    19.6    +      -       -      +
   2060A  ILE*     5.8     2.5    -      -       +      +
   2078A  ILE*     3.9    30.7    -      -       +      +
   2081A  ILE*     4.0    19.1    -      -       +      -
   2164A  ILE*     3.9    26.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR2004 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1977A  ALA      4.7     4.3    -      -       -      -
   1980A  TRP*     3.6    30.7    -      +       +      +
   1981A  SER*     3.1    40.6    -      -       -      -
   1984A  ILE*     3.6    30.3    -      -       +      -
   2000A  GLN      3.0    18.5    +      -       -      +
   2001A  GLU*     3.5     9.9    -      -       +      +
   2003A  ILE*     1.3    77.7    -      -       -      +
   2005A  GLU*     1.3    62.2    +      -       +      +
   2007A  MET*     2.9    10.3    +      -       +      +
   2008A  GLN*     2.8    74.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU2005 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2001A  GLU      3.3    10.5    +      -       -      +
   2002A  VAL*     3.2    13.8    +      -       -      +
   2004A  TYR*     1.3    85.4    -      -       +      +
   2006A  LEU*     1.3    62.8    +      -       -      +
   2008A  GLN*     4.0     7.8    -      -       -      +
   2009A  THR*     3.0    40.9    +      -       +      +
   2160A  LEU*     4.2    17.9    -      -       +      -
   2163A  ARG*     4.8    11.9    -      -       -      +
   2200B  GLU*     5.4     8.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2006 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2002A  VAL      3.2     8.8    +      -       -      +
   2003A  ILE*     3.6    12.8    -      -       +      +
   2005A  GLU*     1.3    79.1    -      -       -      +
   2007A  MET*     1.3    61.0    +      -       -      +
   2009A  THR*     3.3     4.8    +      -       -      -
   2010A  GLU*     3.1    23.1    +      -       -      +
   2056A  PHE*     4.9     6.5    -      -       +      -
   2060A  ILE*     4.6    14.1    -      -       +      -
   2081A  ILE*     5.1     8.1    -      -       +      -
   2085A  LEU*     3.9    26.5    -      -       +      -
   2153A  ARG*     4.3     1.1    -      -       -      +
   2157A  TYR*     4.2    14.8    -      -       +      -
   2160A  LEU*     3.8    29.3    -      -       +      +
   2161A  PHE*     4.0    20.2    -      -       +      -
   2164A  ILE*     4.2    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET2007 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1977A  ALA*     3.2    43.5    -      -       +      +
   1980A  TRP*     3.8    39.3    -      -       +      -
   2003A  ILE      3.2     9.2    +      -       -      +
   2004A  TYR*     2.9    13.3    +      -       -      +
   2006A  LEU*     1.3    78.4    -      -       -      +
   2008A  GLN*     1.3    80.8    +      -       +      +
   2010A  GLU*     3.0     8.4    +      -       -      +
   2011A  PHE*     2.9    25.6    +      -       +      -
   2057A  PHE*     3.3    26.3    -      -       +      -
   2060A  ILE*     4.2    20.0    -      -       +      -
   2061A  LEU*     4.7     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN2008 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1977A  ALA*     6.3     0.4    -      -       +      -
   2004A  TYR*     2.8    62.9    +      -       +      +
   2005A  GLU*     4.0     7.9    -      -       -      +
   2007A  MET*     1.3    85.5    -      -       +      +
   2009A  THR*     1.3    67.5    +      -       -      +
   2011A  PHE*     3.3     6.5    +      -       +      +
   2012A  HIS*     3.1    49.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR2009 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2005A  GLU*     3.0    30.2    +      -       +      +
   2006A  LEU      3.3     2.3    +      -       -      -
   2008A  GLN*     1.3    83.7    -      -       -      +
   2010A  GLU*     1.3    60.8    +      -       -      +
   2012A  HIS*     3.5    11.6    +      -       -      +
   2013A  HIS*     3.0    25.8    +      -       -      +
   2153A  ARG*     3.0    32.6    +      -       -      -
   2160A  LEU*     3.8    10.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU2010 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2006A  LEU*     3.1    19.4    +      -       +      +
   2007A  MET*     3.0     7.3    +      -       -      +
   2009A  THR*     1.3    75.3    +      -       -      +
   2011A  PHE*     1.3    61.1    +      -       -      +
   2013A  HIS*     3.4     3.9    +      -       -      +
   2014A  VAL*     3.0    28.6    +      -       -      +
   2053A  HIS*     2.7    39.2    +      -       -      +
   2056A  PHE*     3.5    22.0    -      -       +      -
   2057A  PHE*     3.8    25.8    -      -       +      -
   2060A  ILE*     4.6     4.7    -      -       +      -
   2153A  ARG*     2.9    14.4    +      -       -      +
   2157A  TYR*     2.5    27.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE2011 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1970A  LEU*     3.8    24.9    -      -       +      -
   1973A  GLN*     4.2     3.6    -      -       +      -
   1974A  SER*     3.2    46.2    -      -       -      -
   1977A  ALA*     4.3    10.1    -      -       +      -
   2007A  MET*     2.9    31.3    +      -       +      -
   2008A  GLN*     3.4     5.4    -      -       +      +
   2009A  THR      3.3     0.2    -      -       -      -
   2010A  GLU*     1.3    78.0    -      -       -      +
   2012A  HIS*     1.3    72.5    +      +       -      +
   2014A  VAL*     3.3     6.5    +      -       +      +
   2015A  ARG*     2.8    55.7    +      -       -      +
   2057A  PHE*     3.5    19.2    -      +       +      -
----------------------------------------------------------
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Residues in contact with HIS2012 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2008A  GLN*     3.1    41.9    +      -       +      +
   2009A  THR*     3.8    12.9    -      -       -      +
   2010A  GLU      3.3     0.2    -      -       -      -
   2011A  PHE*     1.3    87.4    -      +       -      +
   2013A  HIS*     1.3    61.2    +      -       -      +
   2015A  ARG*     3.0    43.7    +      -       -      +
   2016A  THR*     2.8    34.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS2013 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2009A  THR      3.0    18.1    +      -       -      +
   2010A  GLU*     3.5     6.1    -      -       -      +
   2012A  HIS*     1.3    76.7    -      -       -      +
   2014A  VAL*     1.3    57.2    +      -       -      +
   2016A  THR*     3.3     7.6    +      -       -      -
   2017A  LEU*     3.0    42.6    +      -       +      +
   2053A  HIS*     3.4    37.3    +      +       +      -
   2101A  TYR*     3.0    22.4    +      -       -      -
   2149A  LEU*     4.7     2.4    +      -       -      +
   2150A  VAL*     4.0    30.0    +      -       +      +
   2153A  ARG*     3.3    43.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL2014 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1970A  LEU*     4.3     5.6    -      -       +      -
   1973A  GLN*     3.9    20.0    -      -       -      +
   2010A  GLU      3.0    21.8    +      -       -      +
   2011A  PHE*     3.6     7.6    -      -       +      +
   2013A  HIS*     1.3    74.6    -      -       -      +
   2015A  ARG*     1.3    63.3    +      -       -      +
   2017A  LEU*     3.4     9.7    +      -       +      +
   2018A  LYS*     3.0    35.6    +      -       +      +
   2050A  ILE*     5.5     1.6    -      -       +      +
   2053A  HIS*     3.6    42.4    -      -       +      +
   2054A  SER*     3.8    18.6    -      -       -      +
   2057A  PHE*     4.5     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG2015 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1970A  LEU*     4.5    25.6    -      -       +      +
   2011A  PHE*     2.8    37.1    +      -       +      +
   2012A  HIS*     3.0    45.9    +      -       -      +
   2014A  VAL*     1.3    77.8    -      -       -      +
   2016A  THR*     1.3    57.0    +      -       -      +
   2018A  LYS*     3.3     1.7    +      -       -      +
   2019A  ILE*     2.9    52.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR2016 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2012A  HIS*     2.8    28.8    +      -       -      +
   2013A  HIS*     3.5     9.2    -      -       -      -
   2015A  ARG*     1.3    73.7    +      -       -      +
   2017A  LEU*     1.3    64.5    +      -       -      +
   2019A  ILE*     3.4     6.9    +      -       -      +
   2020A  MET*     3.0    27.6    +      -       -      +
   2141A  LEU*     4.4    13.6    -      -       +      +
   2146A  CYS*     4.3    36.1    -      -       -      +
   2149A  LEU*     4.4    19.5    -      -       +      +
   2150A  VAL*     4.4     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU2017 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2013A  HIS*     3.0    40.3    +      -       +      +
   2014A  VAL*     3.7     7.2    -      -       -      +
   2016A  THR*     1.3    76.4    -      -       -      +
   2018A  LYS*     1.3    57.8    +      -       -      +
   2020A  MET*     3.2     7.9    +      -       -      +
   2021A  SER*     3.0    27.4    +      -       -      -
   2046A  LEU*     3.8    19.7    -      -       +      +
   2049A  LEU*     3.8    39.0    -      -       +      +
   2050A  ILE*     3.7    18.1    -      -       +      +
   2053A  HIS*     4.1     5.4    -      -       +      -
   2150A  VAL*     3.5    36.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS2018 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1968A  GLU      3.2    24.9    +      -       -      -
   1970A  LEU*     4.2    31.9    -      -       +      +
   1973A  GLN*     3.3    16.6    +      -       -      -
   2014A  VAL*     3.0    24.3    +      -       +      +
   2015A  ARG      4.0     2.9    -      -       -      +
   2017A  LEU*     1.3    74.4    -      -       -      +
   2019A  ILE*     1.3    58.2    +      -       -      +
   2021A  SER*     3.8     2.2    -      -       -      +
   2022A  GLY*     2.7    31.7    +      -       -      -
   2023A  VAL*     5.2     0.3    -      -       -      +
   2050A  ILE*     3.8    37.2    -      -       +      -
   2054A  SER*     3.7    12.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE2019 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2015A  ARG*     2.9    42.0    +      -       +      +
   2016A  THR*     3.7     5.2    -      -       -      +
   2018A  LYS*     1.3    73.9    -      -       -      +
   2020A  MET*     1.3    65.8    +      -       -      +
   2023A  VAL*     3.0    32.3    +      -       +      +
   2024A  TYR*     3.4    11.8    +      -       +      -
   2137A  VAL*     4.2    27.1    -      -       +      +
   2138A  VAL*     3.9    29.4    -      -       +      -
   2139A  ARG*     5.3     1.3    -      -       +      +
   2141A  LEU*     4.0    26.9    -      -       +      -
   2146A  CYS*     5.2     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET2020 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2016A  THR*     3.0    18.7    +      -       -      +
   2017A  LEU*     3.3    11.7    -      -       -      +
   2019A  ILE*     1.3    75.5    -      -       -      +
   2021A  SER*     1.3    57.1    +      -       -      +
   2024A  TYR*     3.5    12.7    -      -       +      +
   2025A  SER*     2.8    30.3    +      -       -      -
   2043A  PHE*     3.4    38.7    -      -       +      -
   2046A  LEU*     3.8    23.3    -      -       +      -
   2104A  PHE*     4.1    18.4    -      -       +      -
   2146A  CYS*     3.6    36.8    -      -       +      -
   2147A  ILE*     5.0     1.3    -      -       +      -
   2150A  VAL*     3.7    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER2021 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2017A  LEU      3.0     6.8    +      -       -      -
   2018A  LYS*     4.0     2.9    -      -       -      -
   2020A  MET*     1.3    77.8    -      -       -      +
   2022A  GLY*     1.3    59.9    +      -       -      +
   2025A  SER*     3.3     5.9    +      -       -      -
   2026A  GLN*     2.9    39.8    +      -       -      +
   2046A  LEU*     3.8    13.8    -      -       -      +
   2047A  ASP*     4.5     9.2    +      -       -      -
   2050A  ILE*     3.6    31.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY2022 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2018A  LYS      2.7    22.0    +      -       -      -
   2021A  SER*     1.3    74.6    -      -       -      +
   2023A  VAL*     1.3    61.0    +      -       -      +
   2026A  GLN*     3.5    21.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL2023 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2018A  LYS      5.2     0.2    -      -       -      +
   2019A  ILE*     3.0    27.3    +      -       +      +
   2022A  GLY*     1.3    80.5    -      -       -      +
   2024A  TYR*     1.3    62.9    +      -       +      +
   2027A  GLY*     3.1    25.0    +      -       -      -
   2132A  LYS*     3.6    40.6    -      -       +      +
   2135A  SER*     5.9     2.5    -      -       -      +
   2137A  VAL*     3.6    31.0    -      -       +      -
   2138A  VAL*     3.7    14.8    -      -       +      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il