Contacts of the helix formed by residues 136 - 160 (chain D) in PDB entry 1O9I


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 ASN 136 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262A  HIS      2.9    25.8    +      -       -      +
    264A  HIS*     3.7    26.1    +      -       -      +
    134D  SER*     3.0    10.0    +      -       -      -
    135D  GLY*     1.3    76.0    -      -       -      +
    137D  LEU*     1.3    58.8    +      -       -      +
    138D  VAL*     2.8    23.5    +      -       -      +
    139D  ALA*     2.9    11.0    +      -       +      +
    140D  ASP*     2.9    24.2    +      -       -      -
    200D  VAL*     4.2    14.5    -      -       -      +
    201D  PRO*     4.4     4.9    -      -       -      +
    153E  LEU*     3.7    28.4    -      -       +      +
    157E  ARG*     4.7     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 137 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264A  HIS      2.8    13.3    +      -       -      +
    265A  GLN*     3.8    37.2    -      -       +      +
     45D  GLN*     4.2    11.7    -      -       +      +
     49D  SER*     4.1    12.8    -      -       -      +
     55D  TYR*     4.1    21.3    -      -       +      -
     59D  LEU*     4.1    24.9    -      -       +      -
    135D  GLY*     5.5     2.0    -      -       -      -
    136D  ASN*     1.3    70.4    -      -       -      +
    138D  VAL*     1.3    61.4    +      -       -      +
    139D  ALA      3.3     0.4    -      -       -      -
    140D  ASP*     3.7    22.4    -      -       +      +
    141D  MET*     2.8    38.3    +      -       +      +
    192D  LEU*     3.6    13.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 138 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264A  HIS*     3.9     8.0    +      -       +      +
    136D  ASN*     2.8    11.4    +      -       -      +
    137D  LEU*     1.3    79.9    -      -       -      +
    139D  ALA*     1.3    61.9    +      -       -      +
    141D  MET*     4.2     1.8    -      -       -      +
    142D  ARG*     3.3    29.3    +      -       -      +
    189D  GLN*     4.7     3.1    -      -       +      +
    192D  LEU*     3.9    17.3    -      -       +      +
    193D  GLU*     3.9    29.2    -      -       +      +
    196D  TYR*     3.9    35.2    -      -       +      -
    197D  GLY      4.3     6.1    -      -       -      +
    200D  VAL*     3.4    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 139 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134D  SER*     4.3     2.5    -      -       -      +
    136D  ASN*     2.9    19.5    +      -       +      +
    138D  VAL*     1.3    78.5    -      -       -      +
    140D  ASP*     1.3    58.6    +      -       -      +
    142D  ARG*     3.2     7.5    +      -       -      +
    143D  PHE*     3.0    20.8    +      -       -      +
    200D  VAL*     4.0    21.2    -      -       +      +
    146E  VAL*     4.6     2.9    -      -       -      +
    149E  SER*     4.3    14.1    -      -       -      -
    150E  GLU*     3.4    29.2    -      -       -      +
    153E  LEU*     4.7     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 140 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  GLN*     3.8    26.8    -      -       -      +
    132D  THR*     3.6     5.7    -      -       -      +
    133D  SER*     3.4     7.3    +      -       -      -
    134D  SER*     2.7    43.7    +      -       -      -
    135D  GLY      3.9     3.5    +      -       -      -
    136D  ASN      2.9    14.9    +      -       -      +
    137D  LEU*     3.6    12.5    +      -       +      +
    138D  VAL      3.4     0.2    -      -       -      -
    139D  ALA*     1.3    73.0    -      -       -      +
    141D  MET*     1.3    61.9    +      -       -      +
    143D  PHE*     3.1     6.7    +      -       -      +
    144D  ASN*     2.8    35.1    +      -       -      +
    150E  GLU*     2.8    17.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 141 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55D  TYR*     4.0    25.6    -      -       +      +
     58D  LEU*     4.5     7.0    -      -       +      -
     59D  LEU*     3.9    31.0    -      -       +      -
    137D  LEU*     2.8    30.1    +      -       +      +
    138D  VAL      4.3     0.4    -      -       -      +
    140D  ASP*     1.3    72.6    -      -       -      +
    142D  ARG*     1.3    65.4    +      -       -      +
    144D  ASN*     3.2     8.5    +      -       -      +
    145D  VAL*     3.0    29.0    +      -       -      +
    185D  PHE*     3.6    28.6    -      -       -      +
    188D  ALA*     3.8    17.0    -      -       +      -
    189D  GLN*     4.0    21.5    -      -       +      -
    192D  LEU*     3.8    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 142 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138D  VAL*     3.3    20.7    +      -       -      +
    139D  ALA*     3.2     7.5    +      -       -      +
    141D  MET*     1.3    78.2    -      -       -      +
    143D  PHE*     1.3    62.1    +      -       -      +
    145D  VAL*     3.3     4.4    +      -       -      +
    146D  VAL*     3.0    25.3    +      -       -      +
    189D  GLN*     3.5    26.5    +      -       -      +
    193D  GLU*     2.7    33.9    +      -       -      +
    198D  ILE*     2.7    29.7    +      -       -      +
    200D  VAL*     3.5    13.3    -      -       -      +
    142E  ARG*     5.5     0.4    -      -       -      +
    145E  VAL*     3.8    21.3    -      -       +      +
    146E  VAL*     3.4    14.8    -      -       +      -
    149E  SER*     2.9    30.0    +      -       -      -
    182E  GLN*     3.3    18.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 143 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33D  TRP*     3.7    31.2    -      +       -      -
     37D  THR*     4.6     0.7    -      -       +      -
     41D  SER*     3.6    25.8    -      -       -      -
     42D  PHE*     5.4     0.2    -      +       -      -
     45D  GLN*     4.0     7.0    -      -       -      -
    130D  TYR      3.8    21.3    -      -       -      -
    132D  THR*     3.6    32.1    -      -       +      -
    139D  ALA      3.0    13.3    +      -       -      +
    140D  ASP*     3.1    11.6    +      -       -      +
    142D  ARG*     1.3    76.6    -      -       -      +
    144D  ASN*     1.3    69.7    +      -       -      +
    146D  VAL*     3.1     5.2    +      -       +      +
    147D  ARG*     2.8    35.9    +      -       +      -
     33E  TRP*     3.9    17.9    -      +       -      -
    143E  PHE*     6.3     0.2    -      +       -      -
    146E  VAL*     3.4    17.6    -      -       +      +
    150E  GLU*     4.4     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 144 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42D  PHE*     3.2    23.5    -      -       +      -
     45D  GLN*     2.8    41.6    +      -       -      -
     59D  LEU*     3.4    18.6    -      -       -      +
    140D  ASP      2.8    18.6    +      -       -      +
    141D  MET*     3.2    16.1    +      -       -      +
    143D  PHE*     1.3    79.3    -      -       -      +
    145D  VAL*     1.3    62.9    +      -       -      +
    147D  ARG*     3.2     3.1    +      -       -      +
    148D  GLU*     3.1    27.2    +      -       -      +
    185D  PHE*     3.6    23.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 145 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141D  MET      3.0    17.6    +      -       -      +
    142D  ARG      3.6     6.7    -      -       -      +
    144D  ASN*     1.3    77.8    -      -       -      +
    146D  VAL*     1.3    54.3    +      -       -      +
    148D  GLU*     3.3     6.3    +      -       -      +
    149D  SER*     2.7    36.6    +      -       -      +
    182D  GLN*     4.0     5.3    -      -       +      +
    185D  PHE*     3.6     9.0    -      -       +      -
    186D  MET*     3.6    44.4    -      -       +      +
    189D  GLN*     3.7    16.4    -      -       -      +
    142E  ARG*     3.8    34.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 146 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33D  TRP*     3.7    24.5    -      -       +      -
    142D  ARG      3.0    17.9    +      -       -      +
    143D  PHE*     3.1     9.4    +      -       +      +
    145D  VAL*     1.3    74.5    -      -       -      +
    147D  ARG*     1.3    67.2    +      -       -      +
    149D  SER*     3.0     6.0    +      -       -      -
    150D  GLU*     2.8    36.6    +      -       +      +
    139E  ALA      4.8     1.1    -      -       -      +
    142E  ARG*     3.3    19.7    -      -       +      +
    143E  PHE*     3.3    43.7    -      -       +      +
    146E  VAL*     3.6     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 147 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33D  TRP*     2.8    61.2    +      -       +      +
     34D  GLY      3.0    11.7    +      -       -      -
     35D  GLU*     3.0    23.0    +      -       -      -
     37D  THR*     4.1    12.6    -      -       +      -
     38D  GLY*     3.7    22.6    -      -       -      +
     42D  PHE*     4.2     5.3    -      -       +      -
     66D  GLU*     3.1    25.3    +      -       -      -
    143D  PHE*     2.8    24.8    +      -       +      +
    144D  ASN*     3.6    12.6    -      -       -      +
    146D  VAL*     1.3    72.9    -      -       -      +
    148D  GLU*     1.3    86.4    +      -       -      +
    150D  GLU*     3.6     1.6    +      -       -      +
    151D  ALA*     3.0    33.0    +      -       -      +
    178D  GLU*     5.5     1.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 148 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42D  PHE*     3.4    12.1    -      -       +      -
     66D  GLU*     2.9    23.2    -      -       -      +
    144D  ASN      3.1    17.5    +      -       -      +
    145D  VAL      3.9     0.9    -      -       -      +
    147D  ARG*     1.3    90.6    +      -       -      +
    149D  SER*     1.3    57.8    +      -       -      +
    151D  ALA*     3.9     3.3    -      -       -      +
    152D  ARG*     3.0    23.2    +      -       -      +
    178D  GLU*     3.4    29.7    -      -       -      +
    181D  HIS*     3.3    32.5    +      -       +      +
    182D  GLN*     3.2    32.3    +      -       +      +
    185D  PHE*     4.0     9.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 149 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145D  VAL      2.7    24.4    +      -       -      -
    146D  VAL*     3.0     7.8    +      -       -      -
    148D  GLU*     1.3    76.2    -      -       -      +
    150D  GLU*     1.3    65.8    +      -       -      +
    152D  ARG*     3.4     1.6    +      -       -      +
    153D  LEU*     2.9    23.9    +      -       -      +
    182D  GLN*     3.5    13.6    +      -       -      +
    139E  ALA*     4.3    19.4    -      -       -      +
    142E  ARG*     2.9    34.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 150 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33D  TRP*     3.5    41.9    -      -       +      +
    146D  VAL*     2.8    26.9    +      -       +      +
    147D  ARG      4.1     0.2    -      -       -      +
    149D  SER*     1.3    73.8    -      -       -      +
    151D  ALA*     1.3    63.9    +      -       -      +
    153D  LEU*     3.4     8.7    +      -       -      +
    154D  GLN*     3.0    30.5    +      -       -      +
    132E  THR*     3.4    16.2    -      -       -      +
    134E  SER*     3.2    24.3    +      -       -      -
    139E  ALA*     3.4    22.4    -      -       +      +
    140E  ASP*     2.8    23.0    -      -       -      +
    143E  PHE*     4.5     2.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 151 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33D  TRP*     3.6     9.5    -      -       -      +
     34D  GLY*     5.5     0.4    -      -       -      -
     35D  GLU*     4.4     2.5    -      -       -      +
    147D  ARG*     3.0    46.0    +      -       -      +
    148D  GLU*     4.0     4.3    -      -       -      +
    150D  GLU*     1.3    77.9    -      -       -      +
    152D  ARG*     1.3    57.7    +      -       -      +
    154D  GLN*     3.1     9.7    +      -       -      +
    155D  VAL*     2.8    32.0    +      -       +      +
    178D  GLU*     3.8    16.2    -      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
    148D  GLU      3.0    20.3    +      -       -      +
    149D  SER      4.0     1.1    -      -       -      +
    150D  GLU      3.3     0.2    -      -       -      -
    151D  ALA*     1.3    76.9    -      -       -      +
    153D  LEU*     1.3    58.2    +      -       -      +
    155D  VAL*     3.8     0.4    -      -       -      -
    156D  SER*     2.8    41.0    +      -       -      -
    175D  LEU*     3.0    47.2    +      -       +      +
    178D  GLU*     3.1    25.3    +      -       +      +
    179D  THR*     3.1    20.7    +      -       -      +
    182D  GLN*     3.6    21.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 153 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261B  LEU      3.8    11.0    -      -       -      +
    262B  HIS*     3.8    23.8    -      -       +      +
    149D  SER      2.9    18.3    +      -       -      +
    150D  GLU*     3.5    11.0    -      -       -      +
    151D  ALA      3.2     0.2    -      -       -      -
    152D  ARG*     1.3    77.0    -      -       -      +
    154D  GLN*     1.3    60.0    +      -       +      +
    156D  SER*     3.3     6.0    +      -       -      -
    157D  ARG*     3.0    61.1    +      -       -      +
    134E  SER*     3.4    35.0    -      -       -      +
    136E  ASN*     3.7    18.8    -      -       +      +
    139E  ALA*     4.8     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 154 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110C  LEU*     3.6    29.2    -      -       +      +
    111C  VAL*     4.0    26.6    +      -       -      +
     27D  GLU*     3.4    31.5    +      -       +      +
     28D  SER*     5.1     5.0    +      -       -      +
     32D  GLN*     5.5     0.8    +      -       -      +
     33D  TRP*     4.2    37.0    +      -       -      +
     34D  GLY*     5.3     0.3    -      -       -      -
    150D  GLU*     3.0    21.1    +      -       -      +
    151D  ALA*     3.1     8.9    +      -       -      +
    153D  LEU*     1.3    78.9    -      -       +      +
    155D  VAL*     1.3    58.6    +      -       +      +
    157D  ARG*     3.1     5.5    +      -       -      +
    158D  LEU*     2.8    37.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 155 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28D  SER*     4.6    14.6    -      -       -      +
     35D  GLU*     6.4     0.4    -      -       -      -
    151D  ALA*     2.8    20.3    +      -       +      +
    152D  ARG      3.9     2.0    -      -       -      +
    154D  GLN*     1.3    75.7    -      -       +      +
    156D  SER*     1.3    62.9    +      -       -      +
    158D  LEU*     3.2    11.3    +      -       +      +
    159D  TYR*     3.0    21.8    +      -       -      +
    171D  LEU*     3.6    36.7    -      -       +      +
    174D  LEU*     4.5    10.1    -      -       +      -
    175D  LEU*     3.6    19.7    -      -       +      +
    178D  GLU*     3.5    26.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 156 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262B  HIS*     4.0    31.6    +      -       -      -
    152D  ARG*     2.8    32.3    +      -       -      +
    153D  LEU*     3.4     8.1    -      -       -      -
    155D  VAL*     1.3    78.4    -      -       -      +
    157D  ARG*     1.3    61.4    +      -       -      +
    159D  TYR*     3.3    20.4    +      -       -      +
    160D  SER*     3.6     6.2    +      -       -      -
    175D  LEU*     3.4    18.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 157 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260B  ARG      4.0    14.4    -      -       -      +
    261B  LEU*     2.8    28.8    +      -       +      +
    262B  HIS*     4.5     1.8    +      -       +      -
    263B  ASN*     2.8    25.5    +      -       -      -
     86C  PHE*     5.7     1.0    -      -       +      -
    109C  SER      3.8     8.9    +      -       -      -
    110C  LEU*     3.0    35.9    +      -       +      -
    111C  VAL      3.2    13.1    +      -       -      -
    113C  GLY*     3.5    10.1    -      -       -      +
    153D  LEU*     3.0    40.0    +      -       -      +
    154D  GLN*     3.1     7.9    +      -       -      +
    156D  SER*     1.3    76.8    -      -       -      +
    158D  LEU*     1.3    63.1    +      -       -      +
    160D  SER*     2.9    15.1    +      -       -      -
    161D  MET*     3.2    25.3    +      -       +      +
    134E  SER      2.7    30.7    +      -       -      -
    135E  GLY*     4.2     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 158 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110C  LEU*     3.7    22.0    -      -       +      -
     21D  MET*     3.6    22.7    -      -       +      +
     24D  ARG*     3.8    32.1    -      -       +      +
     25D  LEU*     3.8    16.8    -      -       +      +
     27D  GLU*     5.9     0.2    -      -       +      -
     28D  SER*     3.6    24.5    -      -       -      +
    154D  GLN*     2.8    21.8    +      -       +      +
    155D  VAL*     3.5    15.5    -      -       +      +
    157D  ARG*     1.3    76.0    -      -       -      +
    159D  TYR*     1.3    57.9    +      -       -      +
    161D  MET*     2.9    28.5    +      -       -      +
    162D  THR*     3.6     3.8    +      -       -      +
    171D  LEU*     3.8    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 159 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155D  VAL      3.0    11.7    +      -       -      +
    156D  SER*     3.3    15.3    -      -       -      +
    157D  ARG      3.1     0.2    -      -       -      -
    158D  LEU*     1.3    76.6    -      -       -      +
    160D  SER*     1.3    64.3    +      -       -      +
    162D  THR*     3.2     6.6    -      -       -      +
    165D  GLU*     4.9     2.8    +      -       -      -
    168D  ARG*     2.9    90.5    +      -       +      +
    171D  LEU*     3.6    17.2    -      -       +      +
    172D  LYS*     3.9    30.3    +      -       +      +
    175D  LEU*     5.1    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 160 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260B  ARG*     3.6    50.6    +      -       -      +
    262B  HIS*     5.0     2.9    +      -       -      -
     86C  PHE*     4.8     3.2    -      -       -      -
     87C  GLY*     3.8     6.8    -      -       -      -
     88C  PRO*     3.6    13.7    -      -       -      +
     89C  GLU*     5.5     0.7    +      -       -      +
    156D  SER      3.6     5.8    +      -       -      -
    157D  ARG      2.9    11.5    +      -       -      -
    159D  TYR*     1.3    82.9    -      -       -      +
    161D  MET*     1.3    60.6    +      -       -      +
    162D  THR      3.5     2.7    -      -       -      -
    168D  ARG*     4.4     5.9    +      -       -      +
----------------------------------------------------------
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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