Contacts of the helix formed by residues 92 - 121 (chain B) in PDB entry 1N1Q


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 SER 92 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  ASN*     5.9     0.9    -      -       -      -
     90B  GLY      3.5     1.8    +      -       -      -
     91B  GLU*     1.3    75.8    -      -       -      +
     93B  ALA*     1.3    65.1    +      -       -      +
     94B  ALA*     3.5     7.2    +      -       -      +
     95B  GLU*     3.0    38.2    +      -       -      +
     96B  MET*     2.9    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 93 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  VAL*     3.8    22.7    -      -       +      -
     35B  ASN*     3.6    29.7    +      -       -      +
     38B  ASN*     5.8     3.1    -      -       +      -
     42B  LEU*     4.0    12.0    -      -       +      +
     92B  SER*     1.3    73.5    -      -       -      +
     94B  ALA*     1.3    64.3    +      -       -      +
     96B  MET*     3.1    17.4    +      -       -      +
     97B  VAL*     3.2    18.2    +      -       -      +
    147B  PHE*     5.8     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 94 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92B  SER*     3.2     7.2    +      -       -      +
     93B  ALA*     1.3    78.4    -      -       -      +
     95B  GLU*     1.3    59.2    +      -       +      +
     97B  VAL*     3.3     5.5    +      -       -      +
     98B  SER*     2.9    30.1    +      -       -      -
    147B  PHE*     5.3     3.8    -      -       +      -
    148B  LEU*     3.8    20.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 95 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90B  GLY      4.1     4.3    -      -       -      +
     91B  GLU*     3.6    18.1    -      -       +      +
     92B  SER*     3.0    38.3    +      -       -      +
     94B  ALA*     1.3    74.8    -      -       +      +
     96B  MET*     1.3    59.9    +      -       -      +
     98B  SER*     3.7     7.4    -      -       -      -
     99B  SER*     2.8    30.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 96 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  ASN*     5.1     0.7    -      -       -      +
     30B  PHE*     3.6    51.0    -      -       +      -
     33B  ASN*     3.6    18.4    -      -       +      +
     34B  VAL*     3.5    50.7    -      -       -      +
     46B  PHE*     3.8     8.1    -      -       +      -
     91B  GLU*     3.5    30.1    -      -       +      +
     92B  SER      2.9    16.3    +      -       -      +
     93B  ALA*     3.1     7.2    +      -       -      +
     95B  GLU*     1.3    75.1    -      -       -      +
     97B  VAL*     1.3    65.6    +      -       -      +
     99B  SER*     3.1     3.5    +      -       -      -
    100B  VAL*     3.0    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 97 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  LEU*     3.9    22.4    -      -       +      -
     46B  PHE*     4.4     7.4    -      -       +      -
     93B  ALA      3.2    14.0    +      -       -      +
     94B  ALA      3.7     5.6    -      -       -      +
     96B  MET*     1.3    75.1    -      -       -      +
     98B  SER*     1.3    64.1    +      -       -      +
    100B  VAL*     3.1    10.1    +      -       -      +
    101B  VAL*     2.9    21.8    +      -       -      +
    144B  LEU*     3.7    45.5    -      -       +      +
    147B  PHE*     3.8    24.9    -      -       +      -
    148B  LEU*     3.7    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 98 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94B  ALA      2.9    18.4    +      -       -      -
     95B  GLU*     3.7     8.7    -      -       -      -
     97B  VAL*     1.3    76.2    -      -       -      +
     99B  SER*     1.3    58.1    +      -       -      +
    101B  VAL*     3.3     6.4    +      -       -      +
    102B  ASN*     2.9    39.8    +      -       -      +
    148B  LEU*     3.9    19.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 99 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  LYS*     3.6    28.4    +      -       -      -
     30B  PHE*     3.8    12.7    -      -       -      -
     91B  GLU*     5.3     4.3    +      -       -      -
     95B  GLU      2.8    19.7    +      -       -      -
     96B  MET      3.4     5.4    -      -       -      -
     98B  SER*     1.3    75.4    -      -       -      +
    100B  VAL*     1.3    60.0    +      -       -      +
    102B  ASN*     3.3     9.5    +      -       -      +
    103B  ASP*     2.9    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 100 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23B  LEU*     6.2     2.2    -      -       +      -
     27B  LEU*     4.1    12.3    -      -       +      -
     30B  PHE*     4.0    13.7    -      -       +      -
     46B  PHE*     4.0    23.3    -      -       +      -
     49B  LEU*     4.1     6.5    -      -       +      -
     96B  MET      3.0    15.5    +      -       -      +
     97B  VAL*     3.1     6.7    +      -       -      +
     99B  SER*     1.3    72.3    -      -       -      +
    101B  VAL*     1.3    61.1    +      -       -      +
    103B  ASP*     4.4     6.7    -      -       -      +
    104B  PHE*     2.8    57.8    +      -       +      +
    144B  LEU*     3.6    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 101 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97B  VAL      2.9    19.1    +      -       -      +
     98B  SER*     3.4     9.9    -      -       -      +
    100B  VAL*     1.3    78.1    -      -       -      +
    102B  ASN*     1.3    62.3    +      -       -      +
    104B  PHE*     3.9     4.2    -      -       -      +
    105B  VAL*     2.8    44.9    +      -       +      +
    141B  VAL*     4.6     7.4    -      -       +      +
    144B  LEU*     3.5    31.6    -      -       +      -
    145B  GLU*     3.9    36.3    -      -       +      +
    148B  LEU*     4.4     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 102 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98B  SER*     2.9    29.8    +      -       -      +
     99B  SER*     3.6     9.9    -      -       -      +
    101B  VAL*     1.3    81.9    -      -       -      +
    103B  ASP*     1.3    66.6    +      -       -      +
    105B  VAL*     3.3     6.9    +      -       -      +
    106B  ASP*     3.0    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 103 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23B  LEU*     3.8    10.3    -      -       +      +
     26B  LYS*     2.7    38.4    +      -       -      +
     30B  PHE*     5.9     0.2    -      -       -      -
     84B  ILE*     3.6    30.9    -      -       +      +
     85B  LYS      5.2     1.6    +      -       -      -
     99B  SER*     2.9    20.5    +      -       -      +
    100B  VAL*     3.8     6.8    -      -       -      +
    102B  ASN*     1.3    80.0    -      -       -      +
    104B  PHE*     1.3    60.5    +      -       +      +
    106B  ASP*     3.1     8.6    +      -       -      +
    107B  LEU*     2.9    32.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 104 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20B  TRP*     3.8    26.2    -      +       -      -
     23B  LEU*     4.5    11.0    -      -       +      -
     27B  LEU*     5.3     3.8    -      -       +      -
     49B  LEU*     4.1    22.0    -      -       +      -
    100B  VAL*     2.8    45.9    +      -       +      +
    101B  VAL      4.0     0.2    -      -       -      +
    103B  ASP*     1.3    77.5    -      -       +      +
    105B  VAL*     1.3    58.3    +      -       -      +
    107B  LEU*     3.3    11.4    +      -       +      +
    108B  VAL*     2.9    34.6    +      -       -      +
    137B  LEU*     3.7    31.7    -      -       +      +
    140B  HIS*     3.7    35.7    -      +       +      -
    141B  VAL*     3.7    17.9    -      -       +      -
    144B  LEU*     4.5     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 105 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101B  VAL*     2.8    41.9    +      -       +      +
    102B  ASN*     3.6     7.4    -      -       -      +
    104B  PHE*     1.3    76.1    -      -       -      +
    106B  ASP*     1.3    62.8    +      -       -      +
    108B  VAL*     3.4     9.8    +      -       +      +
    109B  GLY*     3.3    16.5    +      -       -      -
    141B  VAL*     4.3    17.7    -      -       +      -
    145B  GLU*     5.0     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 106 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83B  SER*     3.9    18.0    +      -       -      +
     84B  ILE*     5.3     4.3    -      -       +      +
    102B  ASN      3.0    14.3    +      -       -      +
    103B  ASP*     3.1    11.6    +      -       -      +
    105B  VAL*     1.3    78.1    -      -       -      +
    107B  LEU*     1.3    63.0    +      -       +      +
    109B  GLY*     3.1     4.9    +      -       -      -
    110B  GLU*     3.0    41.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 107 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  GLN*     3.5     9.4    -      -       -      +
     19B  ASN*     3.4    30.3    -      -       +      +
     20B  TRP*     3.6    37.9    -      -       +      +
     23B  LEU*     3.6    20.4    -      -       +      -
     83B  SER*     4.9     0.4    -      -       -      +
     84B  ILE*     3.6    15.3    -      -       +      -
    103B  ASP      2.9    16.8    +      -       -      +
    104B  PHE*     3.6    10.3    -      -       +      +
    106B  ASP*     1.3    74.8    -      -       +      +
    108B  VAL*     1.3    55.7    +      -       -      +
    110B  GLU*     3.6     8.6    -      -       -      +
    111B  LEU*     2.7    44.6    +      -       +      +
    137B  LEU*     3.7    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 108 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104B  PHE      2.9    21.8    +      -       -      +
    105B  VAL*     3.6     8.1    -      -       +      +
    106B  ASP      3.3     0.2    -      -       -      -
    107B  LEU*     1.3    75.2    -      -       -      +
    109B  GLY*     1.3    64.3    +      -       -      +
    111B  LEU*     3.3     7.5    +      -       -      +
    112B  LYS*     3.0    48.8    +      -       -      +
    134B  GLU*     4.1     8.6    -      -       +      -
    137B  LEU*     4.0    19.1    -      -       +      -
    138B  GLU*     3.8    34.8    -      -       +      +
    141B  VAL*     5.3     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 109 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  VAL      3.3     6.4    +      -       -      -
    106B  ASP*     3.1     7.8    +      -       -      -
    108B  VAL*     1.3    82.3    -      -       -      +
    110B  GLU*     1.3    61.3    +      -       -      +
    112B  LYS*     3.3    12.4    +      -       -      +
    113B  VAL*     3.3    25.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 110 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  ARG*     3.5    24.3    +      -       -      +
     16B  GLN*     2.9    30.8    +      -       -      +
     19B  ASN*     3.0    15.1    +      -       -      -
     83B  SER*     2.7    28.1    +      -       -      -
    106B  ASP*     3.0    30.8    +      -       -      +
    107B  LEU*     3.7    10.0    -      -       -      +
    109B  GLY*     1.3    72.6    -      -       -      +
    111B  LEU*     1.3    60.4    +      -       -      +
    113B  VAL*     3.3     7.9    +      -       -      +
    114B  ALA*     2.9    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 111 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  GLN*     4.3    21.5    -      -       +      +
     20B  TRP*     5.9     1.8    -      -       -      +
     60B  LEU*     6.0     0.2    -      -       +      -
    107B  LEU*     2.7    29.5    +      -       +      +
    108B  VAL*     3.7     4.5    -      -       -      +
    109B  GLY      3.3     0.2    -      -       -      -
    110B  GLU*     1.3    70.8    -      -       -      +
    112B  LYS*     1.3    59.8    +      -       -      +
    114B  ALA*     3.8     3.6    -      -       +      +
    115B  ARG*     2.9    37.7    +      -       -      +
    130B  LEU*     3.8    38.4    -      -       +      +
    133B  ILE*     3.6    30.5    -      -       +      -
    134B  GLU*     3.6    33.0    -      -       +      +
    137B  LEU*     3.9    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 112 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108B  VAL*     3.0    38.9    +      -       +      +
    109B  GLY*     3.6    12.3    -      -       -      +
    110B  GLU      3.3     0.2    -      -       -      -
    111B  LEU*     1.3    77.5    -      -       -      +
    113B  VAL*     1.3    62.6    +      -       +      +
    115B  ARG*     3.5    18.5    +      -       -      +
    116B  ASP*     3.1    22.2    +      -       -      +
    134B  GLU*     3.7    19.9    +      -       -      +
    138B  GLU*     4.4     3.5    +      -       -      -
    122C  ASP*     5.0    12.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 113 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  LEU*     5.3     8.5    -      -       +      -
    109B  GLY      3.3    13.5    +      -       -      +
    110B  GLU*     3.6    10.3    -      -       -      +
    112B  LYS*     1.3    78.5    -      -       +      +
    114B  ALA*     1.3    64.6    +      -       -      +
    116B  ASP*     3.2     8.4    +      -       -      +
    117B  VAL*     3.1    30.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 114 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9B  VAL*     6.0     0.2    -      -       -      +
     12B  LEU*     4.1    36.7    -      -       +      +
     13B  LEU*     6.0     0.2    -      -       +      -
     16B  GLN*     5.6     4.9    -      -       +      +
    110B  GLU      2.9    17.7    +      -       -      +
    111B  LEU*     3.8     5.8    -      -       +      +
    112B  LYS      3.4     0.2    -      -       -      -
    113B  VAL*     1.3    77.0    -      -       -      +
    115B  ARG*     1.3    58.3    +      -       -      +
    117B  VAL*     3.2     3.8    +      -       -      +
    118B  ALA*     2.8    28.8    +      -       -      +
    130B  LEU*     3.7    22.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 115 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111B  LEU      2.9    22.1    +      -       -      +
    112B  LYS*     3.7    18.6    -      -       -      +
    114B  ALA*     1.3    75.6    -      -       -      +
    116B  ASP*     1.3    53.2    +      -       -      +
    118B  ALA*     3.1     5.0    +      -       -      +
    119B  ASP*     2.7    48.6    +      -       -      +
    127B  ALA*     3.7    14.0    +      -       +      +
    130B  LEU*     3.6    26.0    -      -       +      -
    131B  ASP*     3.9    26.8    +      -       -      +
    134B  GLU*     2.8    43.4    +      -       -      -
    122C  ASP      5.4     4.2    +      -       -      -
    124C  GLU*     2.9    49.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 116 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112B  LYS      3.1    12.1    +      -       -      +
    113B  VAL*     3.2    11.6    +      -       -      +
    115B  ARG*     1.3    79.4    -      -       -      +
    117B  VAL*     1.3    63.8    +      -       -      +
    119B  ASP*     3.4     9.4    +      -       -      +
    120B  GLU*     3.0    28.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 117 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5B  ILE*     4.9     6.0    -      -       +      +
      8B  LEU*     3.8    25.6    -      -       +      -
      9B  VAL*     4.5    11.9    -      -       +      -
     12B  LEU*     3.5    33.0    -      -       +      -
    113B  VAL*     3.1    21.4    +      -       +      +
    114B  ALA      3.2     2.4    +      -       -      +
    116B  ASP*     1.3    81.0    -      -       -      +
    118B  ALA*     1.3    65.3    +      -       -      +
    120B  GLU*     3.3     7.7    +      -       +      +
    121B  ALA*     3.1    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 118 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9B  VAL*     4.1    15.7    -      -       +      -
    114B  ALA      2.8    16.7    +      -       -      +
    115B  ARG*     3.6     4.3    -      -       -      +
    117B  VAL*     1.3    76.5    -      -       -      +
    119B  ASP*     1.3    62.1    +      -       -      +
    121B  ALA      3.0     7.6    +      -       -      -
    123B  ASP*     2.8    44.5    +      -       +      +
    126B  THR*     3.9    24.7    -      -       +      -
    127B  ALA*     3.9     8.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 119 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115B  ARG*     2.7    35.8    +      -       -      +
    116B  ASP*     3.7     9.4    -      -       -      +
    118B  ALA*     1.3    73.8    -      -       -      +
    120B  GLU*     1.3    58.2    +      -       -      +
    122B  ASP*     3.0    24.1    +      -       -      +
    123B  ASP      4.6     2.0    -      -       -      +
    124B  GLU*     2.6    33.8    -      -       -      +
    127B  ALA*     3.3    20.0    -      -       -      +
    124C  GLU*     6.1     0.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 120 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5B  ILE*     3.4    18.9    -      -       +      +
    116B  ASP*     3.0    20.4    +      -       -      +
    117B  VAL*     3.6     8.3    -      -       +      +
    118B  ALA      3.2     0.4    -      -       -      -
    119B  ASP*     1.3    76.1    -      -       -      +
    121B  ALA*     1.3    57.1    +      -       -      +
    122B  ASP*     3.1     9.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 121 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5B  ILE*     3.5    47.4    -      -       +      +
      6B  GLN*     4.1    21.3    +      -       +      +
      9B  VAL*     3.9    11.7    -      -       +      -
    117B  VAL      3.1     8.9    +      -       -      +
    118B  ALA      3.0     8.3    +      -       -      +
    120B  GLU*     1.3    76.6    -      -       -      +
    122B  ASP*     1.3    72.0    +      -       -      +
    123B  ASP*     3.1     3.6    +      -       +      +
----------------------------------------------------------
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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