Contacts of the helix formed by residues 135 - 157 (chain D) in PDB entry 1OHV


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 CYS 135 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134C  ALA*     5.7     1.3    -      -       +      -
    138C  CYS*     5.5     1.3    -      -       -      -
    352C  ASN*     6.1     4.5    -      -       -      -
    354C  TRP*     4.2     9.0    -      -       +      -
    800C  FES      2.3    44.2    -      -       -      -
    133D  MET*     3.4     1.0    -      -       -      +
    134D  ALA*     1.3    80.7    -      -       -      +
    136D  GLY*     1.3    60.0    +      -       -      +
    137D  SER*     3.6     6.7    -      -       -      -
    138D  CYS*     3.5    15.2    -      -       -      -
    139D  SER*     2.6    32.8    +      -       -      -
    328D  SER*     3.4    13.0    -      -       -      -
    334D  GLY*     4.1     0.6    -      -       -      -
    600D  PLP      3.5    17.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 136 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135D  CYS*     1.3    73.1    -      -       -      +
    137D  SER*     1.3    63.3    -      -       -      +
    139D  SER*     3.2     5.3    +      -       -      -
    140D  ASN*     3.0    27.4    +      -       -      +
    300D  VAL*     3.9    12.4    -      -       -      +
    328D  SER*     3.2    19.2    +      -       -      -
    600D  PLP      3.0    25.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 137 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    352C  ASN*     5.2     2.8    -      -       -      +
    800C  FES      4.8     0.7    -      -       -      -
    135D  CYS*     3.4     7.3    -      -       -      -
    136D  GLY*     1.3    76.6    -      -       -      +
    138D  CYS*     1.3    57.2    +      -       -      +
    140D  ASN      3.2     0.9    +      -       -      -
    141D  GLU*     2.9    33.7    +      -       -      +
    190D  HIS      4.4     1.6    -      -       -      -
    191D  GLY*     3.4    18.5    -      -       -      -
    192D  ARG      3.6     5.4    +      -       -      -
    193D  THR*     3.8    27.6    +      -       -      +
    196D  CYS*     3.2    11.1    -      -       -      -
    600D  PLP      2.6    25.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 138 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  CYS*     5.4     1.8    -      -       -      -
    193C  THR*     4.5     6.1    -      -       +      -
    800C  FES      2.3    43.7    -      -       -      -
    133D  MET*     3.8    10.6    -      -       -      +
    134D  ALA*     3.7    12.8    -      -       -      -
    135D  CYS*     3.5    22.5    -      -       -      -
    137D  SER*     1.3    75.7    -      -       -      +
    139D  SER*     1.3    58.7    +      -       -      +
    141D  GLU*     3.8     8.7    -      -       -      -
    142D  ASN*     2.8    46.5    +      -       -      +
    352D  ASN*     4.9     6.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 139 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  MET*     3.5    10.6    -      -       -      +
    135D  CYS      2.6    19.3    +      -       -      -
    136D  GLY*     3.2    11.8    +      -       -      -
    137D  SER      3.1     0.6    -      -       -      -
    138D  CYS*     1.3    78.0    -      -       -      +
    140D  ASN*     1.3    56.7    +      -       -      +
    143D  ALA*     2.9    29.3    +      -       -      +
    326D  THR*     3.8    10.8    -      -       -      -
    327D  PHE      3.5     5.7    +      -       -      -
    335D  GLY*     2.8    41.9    +      -       -      -
    336D  PHE*     3.6     7.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 140 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136D  GLY      3.0    10.7    +      -       -      +
    139D  SER*     1.3    74.3    -      -       -      +
    141D  GLU*     1.3    58.7    +      -       -      +
    143D  ALA*     3.3     4.3    +      -       -      +
    144D  PHE*     2.9    47.5    +      -       +      -
    190D  HIS*     2.8    25.4    +      -       +      +
    196D  CYS*     3.7    16.4    -      -       -      -
    263D  ILE*     4.0    13.7    -      -       -      +
    296D  LEU*     4.4     0.9    -      -       -      +
    298D  ASP*     2.8    27.1    +      -       -      +
    300D  VAL*     4.7     0.6    -      -       -      +
    326D  THR*     2.7    30.5    +      -       -      +
    600D  PLP      3.8     5.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 141 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193C  THR*     3.9    26.9    -      -       +      -
    194C  MET*     3.0    41.0    +      -       -      +
    137D  SER      2.9    21.3    +      -       -      +
    138D  CYS      4.0     3.8    -      -       -      +
    140D  ASN*     1.3    76.5    -      -       -      +
    142D  ASN*     1.3    58.3    +      -       -      +
    144D  PHE*     3.2    11.0    +      -       -      +
    145D  LYS*     3.1    30.7    +      -       -      +
    193D  THR*     2.4    30.6    +      -       -      +
    194D  MET      3.7     0.3    +      -       -      -
    195D  GLY*     2.9    28.0    +      -       -      -
    196D  CYS*     3.1     6.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 142 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192C  ARG*     5.6     2.3    +      -       -      +
    193C  THR*     5.0     5.8    -      -       -      +
    133D  MET*     3.3    34.8    -      -       +      +
    138D  CYS*     2.8    35.3    +      -       -      +
    141D  GLU*     1.3    78.1    -      -       -      +
    143D  ALA*     1.3    55.3    +      -       -      +
    145D  LYS*     3.4    28.0    +      -       -      -
    146D  THR*     2.7    37.4    +      -       -      -
    336D  PHE*     3.7    10.3    -      -       +      -
    350D  ILE*     3.5    18.7    -      -       +      +
    351D  PHE      4.3     5.3    +      -       -      +
    352D  ASN*     4.3     5.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 143 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139D  SER      2.9    20.3    +      -       -      +
    140D  ASN      3.5     5.2    -      -       -      +
    142D  ASN*     1.3    74.5    -      -       -      +
    144D  PHE*     1.3    64.8    +      -       -      +
    146D  THR*     3.2     6.3    +      -       -      -
    147D  ILE*     2.9    29.8    +      -       -      +
    296D  LEU*     3.9    14.8    -      -       +      -
    324D  VAL*     4.0    13.9    -      -       +      -
    326D  THR*     3.7    19.7    -      -       +      -
    336D  PHE*     3.9     7.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 144 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194C  MET*     3.5    22.9    -      -       +      -
    140D  ASN*     2.9    25.9    +      -       +      -
    141D  GLU*     3.2    11.0    +      -       -      +
    143D  ALA*     1.3    76.7    -      -       -      +
    145D  LYS*     1.3    57.0    +      -       -      +
    147D  ILE*     3.2     7.8    +      -       -      +
    148D  PHE*     2.9    48.1    +      -       +      -
    182D  ILE*     3.9    26.9    -      -       +      -
    195D  GLY      3.7    24.2    -      -       -      -
    196D  CYS*     3.9     6.3    -      -       -      -
    199D  THR*     3.5    29.2    -      -       +      -
    215D  TRP*     4.6     0.7    -      +       -      -
    263D  ILE*     3.8    13.7    -      -       +      -
    296D  LEU*     3.5    27.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 145 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192C  ARG*     2.7    47.1    +      -       -      +
    193C  THR*     5.4     0.7    -      -       -      +
    194C  MET*     4.5     9.6    -      -       +      +
    197C  LEU*     4.3     6.4    -      -       +      +
    206C  HIS      4.8     4.0    +      -       -      -
    210C  ILE*     3.6    44.1    -      -       +      +
    141D  GLU      3.1    12.4    +      -       -      +
    142D  ASN*     3.4    26.4    +      -       -      +
    143D  ALA      3.3     0.2    -      -       -      -
    144D  PHE*     1.3    72.5    -      -       -      +
    146D  THR*     1.3    66.7    -      -       -      +
    148D  PHE*     3.1     4.2    +      -       -      +
    149D  MET*     2.9    30.2    +      -       -      +
    349D  ARG      3.5    21.6    +      -       -      -
    350D  ILE*     3.7     9.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 146 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  ILE*     5.2     0.2    -      -       -      +
    142D  ASN      2.7    22.3    +      -       -      -
    143D  ALA*     3.4     6.3    -      -       -      -
    145D  LYS*     1.3    76.5    -      -       -      +
    147D  ILE*     1.3    58.3    +      -       -      +
    149D  MET*     3.5     8.8    +      -       +      +
    150D  TRP*     3.0    27.4    +      -       -      +
    324D  VAL*     5.3     3.6    -      -       +      -
    336D  PHE*     3.3    26.0    -      -       +      -
    338D  HIS*     4.6     5.4    -      -       +      +
    342D  PHE*     3.2    41.9    -      -       +      +
    344D  PRO*     5.0     5.1    -      -       +      +
    350D  ILE*     3.5    15.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 147 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143D  ALA      2.9    18.9    +      -       -      +
    144D  PHE*     3.4     9.4    -      -       -      +
    145D  LYS      3.1     0.2    -      -       -      -
    146D  THR*     1.3    74.7    -      -       -      +
    148D  PHE*     1.3    59.7    -      -       -      +
    150D  TRP*     3.3     7.4    +      -       +      +
    151D  TYR*     2.9    27.4    +      -       -      +
    182D  ILE*     4.2     8.3    -      -       +      -
    260D  ALA*     3.4    36.6    -      -       +      +
    261D  GLY*     3.9     7.6    -      -       -      +
    294D  ALA*     3.6    25.6    -      -       +      -
    296D  LEU*     3.9    35.2    -      -       +      -
    324D  VAL*     4.2    12.8    -      -       +      -
    342D  PHE*     4.2     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 148 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194C  MET*     3.9    18.8    -      -       -      -
    209C  ASP      3.4    19.1    -      -       -      +
    210C  ILE*     4.4     4.9    -      -       +      -
    211C  PRO*     3.3    31.4    -      -       +      -
    144D  PHE*     2.9    35.7    +      -       +      +
    145D  LYS*     3.7     9.0    -      -       -      +
    147D  ILE*     1.3    71.9    -      -       -      +
    149D  MET*     1.3    57.5    +      -       -      +
    151D  TYR*     3.3     4.5    +      -       -      +
    152D  ARG*     3.0    33.3    +      -       -      +
    180D  TYR*     3.9    30.1    -      -       +      -
    181D  SER      3.9     8.5    -      -       -      -
    182D  ILE*     3.5    33.0    -      -       +      -
    215D  TRP*     4.1    11.2    -      +       -      -
    260D  ALA*     3.8    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 149 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  ILE      5.6     0.2    -      -       -      +
    209C  ASP*     4.3    11.2    -      -       +      +
    210C  ILE*     4.3    13.9    -      -       +      -
    145D  LYS      2.9    20.2    +      -       -      +
    146D  THR*     3.6     7.4    -      -       +      +
    148D  PHE*     1.3    74.6    -      -       -      +
    150D  TRP*     1.3    59.7    +      -       -      +
    152D  ARG*     3.7     1.9    +      -       -      +
    153D  SER*     3.0    28.6    +      -       -      -
    156D  ARG*     5.2     0.2    +      -       -      -
    342D  PHE      5.6     0.2    -      -       -      +
    344D  PRO*     3.5    43.5    -      -       +      -
    345D  ASN      4.8     0.2    -      -       -      +
    349D  ARG*     3.2    60.0    +      -       +      +
    350D  ILE*     3.9    16.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 150 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146D  THR      3.0    18.2    +      -       -      +
    147D  ILE      3.5     8.5    -      -       -      +
    149D  MET*     1.3    75.5    -      -       -      +
    151D  TYR*     1.3    80.3    +      +       -      +
    153D  SER*     3.2     8.8    +      -       -      -
    154D  LYS*     3.0    67.6    +      -       +      +
    260D  ALA      3.7     1.3    -      -       -      -
    292D  GLY*     3.3    19.5    -      -       -      -
    293D  CYS      4.3     1.1    -      -       -      -
    294D  ALA*     3.7    22.9    -      -       +      -
    323D  ASP*     5.7     1.1    -      -       -      -
    341D  GLU*     3.0    53.0    +      -       +      +
    342D  PHE*     3.1    43.7    -      +       +      +
----------------------------------------------------------
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Residues in contact with TYR 151 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147D  ILE      2.9    16.1    +      -       -      +
    148D  PHE      3.6     4.3    -      -       -      +
    150D  TRP*     1.3    92.1    -      +       -      +
    152D  ARG*     1.3    63.8    +      -       -      +
    154D  LYS*     3.1    28.1    +      -       -      +
    155D  GLU*     3.2    38.0    +      -       +      +
    180D  TYR*     3.7    12.3    -      +       +      -
    258D  THR*     3.3    30.1    -      -       +      +
    259D  VAL      3.9     4.0    +      -       -      -
    260D  ALA*     3.5    34.5    -      -       +      -
    291D  HIS      4.3    10.4    +      -       -      -
    292D  GLY*     3.2    21.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 152 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209C  ASP*     3.2    36.9    +      -       +      +
    148D  PHE      3.0    18.7    +      -       -      +
    149D  MET      4.1     0.9    -      -       -      +
    151D  TYR*     1.3    76.1    -      -       -      +
    153D  SER*     1.3    57.9    +      -       -      +
    155D  GLU*     3.2    15.6    +      -       -      +
    156D  ARG*     2.9    74.3    +      -       -      +
    165D  GLU*     3.0    24.0    +      -       -      +
    175D  PRO*     3.6    23.9    +      -       -      +
    178D  PRO*     3.6    16.8    -      -       +      +
    180D  TYR*     3.3    31.1    +      -       +      -
----------------------------------------------------------
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Residues in contact with SER 153 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149D  MET      3.0    21.7    +      -       -      -
    150D  TRP*     3.4    11.9    -      -       -      -
    151D  TYR      3.1     0.4    -      -       -      -
    152D  ARG*     1.3    74.5    -      -       -      +
    154D  LYS*     1.3    58.5    +      -       -      +
    156D  ARG*     4.3    11.4    -      -       -      +
    157D  GLY*     2.9    31.6    +      -       -      +
    345D  ASN*     6.0     5.1    -      -       -      +
    349D  ARG*     6.4     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 154 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150D  TRP*     3.0    58.3    +      -       +      +
    151D  TYR*     3.1    22.7    +      -       -      +
    153D  SER*     1.3    79.2    +      -       -      +
    155D  GLU*     1.3    62.4    +      -       +      +
    157D  GLY*     3.8     6.4    +      -       -      -
    292D  GLY*     2.8    37.4    +      -       -      -
    341D  GLU*     5.2     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 155 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151D  TYR*     3.2    30.5    +      -       +      +
    152D  ARG*     3.2    20.9    +      -       -      +
    154D  LYS*     1.3    83.7    -      -       +      +
    156D  ARG*     1.3    60.4    +      -       +      +
    157D  GLY      3.7     0.2    +      -       -      -
    180D  TYR*     2.6    43.1    +      -       -      -
    258D  THR*     5.2     2.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 156 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  ILE*     4.5     1.0    -      -       -      +
    209C  ASP*     2.7    44.2    +      -       -      -
    149D  MET      5.2     0.2    +      -       -      -
    152D  ARG*     2.9    54.5    +      -       -      +
    153D  SER*     4.3     7.4    -      -       -      +
    155D  GLU*     1.3    76.7    -      -       -      +
    157D  GLY*     1.3    67.4    +      -       -      +
    158D  GLN      3.2     0.9    +      -       -      -
    159D  SER*     3.0    47.9    +      -       -      +
    160D  ALA      4.1    11.8    +      -       -      +
    161D  PHE*     3.7    20.8    -      -       -      +
    165D  GLU*     3.1    25.6    +      -       -      +
    349D  ARG*     5.4     0.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 157 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153D  SER*     2.9    23.6    +      -       -      +
    154D  LYS*     3.8     5.1    +      -       -      -
    155D  GLU      3.4     2.6    -      -       -      -
    156D  ARG*     1.3    77.9    -      -       -      +
    158D  GLN*     1.3    62.7    +      -       -      -
    159D  SER      3.4     6.6    +      -       -      +
----------------------------------------------------------
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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