Contacts of the helix formed by residues 82 - 111 (chain Y) in PDB entry 2X17


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 82 (chain Y).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30Y  TYR*     3.3     8.5    +      -       -      -
     80Y  TRP*     3.3     1.6    -      -       -      +
     81Y  GLU*     1.3    80.5    -      -       -      +
     83Y  PRO*     1.4    71.4    -      -       -      +
     84Y  LEU*     3.7    13.0    +      -       -      +
     85Y  LYS*     3.0    28.2    +      -       -      +
     86Y  ALA*     2.9    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 83 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30Y  TYR*     3.6     8.0    -      -       +      +
     31Y  PHE*     3.7    22.9    -      -       +      -
     34Y  LEU*     4.1    20.4    -      -       +      -
     36Y  LEU*     4.1    14.6    -      -       +      -
     39Y  PHE*     5.1     1.1    -      -       +      -
     82Y  SER*     1.4    86.3    -      -       -      +
     84Y  LEU*     1.3    60.7    +      -       -      +
     86Y  ALA*     3.4     5.1    +      -       +      +
     87Y  PHE*     3.3    19.2    +      -       -      -
    141Y  LEU*     3.5    17.7    -      -       +      +
    151Y  LEU*     4.2    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 84 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82Y  SER*     3.1    11.8    +      -       -      +
     83Y  PRO*     1.3    78.4    -      -       -      +
     85Y  LYS*     1.3    65.9    +      -       +      +
     86Y  ALA      3.4     0.2    +      -       -      -
     87Y  PHE*     3.4     5.0    +      -       -      +
     88Y  GLU*     3.2    44.5    +      -       +      +
    138Y  LEU*     4.1     5.1    -      -       +      +
    141Y  LEU*     3.8    28.8    -      -       +      +
    142Y  LYS*     3.7    44.2    -      -       +      +
    145Y  LYS*     4.9    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 85 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80Y  TRP*     3.8    11.8    -      -       +      -
     81Y  GLU*     4.2    33.0    -      -       +      +
     82Y  SER*     3.0    27.5    +      -       -      +
     84Y  LEU*     1.3    81.3    -      -       +      +
     86Y  ALA*     1.3    64.0    +      -       -      +
     87Y  PHE      3.4     0.2    -      -       -      -
     88Y  GLU*     3.4    30.0    +      -       -      +
     89Y  ALA*     3.3    16.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 86 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27Y  MET*     3.5    19.2    -      -       +      +
     30Y  TYR*     4.1     9.0    -      -       +      -
     31Y  PHE*     3.7    24.0    -      -       +      -
     80Y  TRP*     3.8    26.2    -      -       +      +
     82Y  SER      2.9    11.8    +      -       -      +
     83Y  PRO      3.5    10.1    -      -       -      +
     84Y  LEU      3.2     0.2    -      -       -      -
     85Y  LYS*     1.3    78.3    -      -       -      +
     87Y  PHE*     1.3    58.1    +      -       -      +
     89Y  ALA*     3.5     2.1    +      -       -      +
     90Y  ALA*     3.3    18.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 87 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31Y  PHE*     3.7    12.8    -      +       -      -
     39Y  PHE*     3.7    30.5    -      +       -      -
     42Y  TRP*     4.4    14.6    -      +       +      -
     43Y  MET*     3.7    24.7    -      -       +      -
     83Y  PRO      3.3     8.4    +      -       -      -
     84Y  LEU      3.4     2.9    +      -       -      +
     86Y  ALA*     1.3    75.9    -      -       -      +
     88Y  GLU*     1.3    60.5    +      -       -      +
     89Y  ALA      3.3     0.2    -      -       -      -
     90Y  ALA*     3.6     6.4    -      -       +      +
     91Y  TYR*     3.0    23.4    +      -       -      +
    134Y  VAL*     3.9    30.7    -      -       +      +
    137Y  ILE*     3.7    39.3    -      -       +      -
    138Y  LEU*     3.4    19.3    -      -       -      +
    141Y  LEU*     3.6    27.8    -      -       +      -
    158Y  LEU*     4.7     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 88 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84Y  LEU*     3.2    40.5    +      -       -      +
     85Y  LYS*     3.4    41.2    +      -       +      +
     86Y  ALA      3.3     0.4    -      -       -      -
     87Y  PHE*     1.3    78.5    -      -       -      +
     89Y  ALA*     1.3    56.8    +      -       -      +
     91Y  TYR*     3.7     3.3    +      -       -      +
     92Y  GLU*     3.2    25.9    +      -       -      +
    138Y  LEU*     3.7    23.3    -      -       +      -
    142Y  LYS*     4.3    11.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 89 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23Y  LEU*     5.4     0.5    -      -       -      +
     27Y  MET*     4.3     6.6    -      -       +      +
     80Y  TRP*     3.4    30.5    -      -       +      +
     85Y  LYS      3.3     6.6    +      -       -      +
     86Y  ALA      3.8     4.7    -      -       -      +
     87Y  PHE      3.3     0.2    -      -       -      -
     88Y  GLU*     1.3    76.9    -      -       -      +
     90Y  ALA*     1.3    60.5    +      -       -      +
     92Y  GLU*     3.6    13.2    +      -       -      +
     93Y  HIS*     3.0    27.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 90 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24Y  TYR*     3.7    24.3    +      -       +      +
     27Y  MET*     3.9    13.2    -      -       +      +
     43Y  MET*     4.9     2.2    -      -       +      -
     86Y  ALA      3.3    12.0    +      -       -      +
     87Y  PHE*     3.6    15.9    -      -       +      +
     88Y  GLU      3.3     0.4    -      -       -      -
     89Y  ALA*     1.3    77.4    -      -       -      +
     91Y  TYR*     1.3    58.7    +      -       -      +
     93Y  HIS*     3.3     6.3    +      -       -      +
     94Y  GLU*     2.8    32.9    +      -       -      +
    134Y  VAL*     4.0    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 91 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      13  MET      5.5     1.6    +      -       -      -
     653  ASN*     4.5     4.9    -      -       -      +
   11743   AG      2.8    27.9    -      -       -      -
     87Y  PHE      3.0    17.0    +      -       -      +
     88Y  GLU      4.0     3.6    -      -       -      +
     90Y  ALA*     1.3    72.8    -      -       -      +
     92Y  GLU*     1.3    61.3    +      -       -      +
     94Y  GLU*     3.8     2.5    -      -       -      +
     95Y  LYS*     3.1    52.0    +      -       +      +
    131Y  GLU*     3.8    43.7    +      -       +      -
    134Y  VAL*     3.8     9.8    -      -       +      +
    135Y  LYS*     3.6    46.6    -      -       +      +
    138Y  LEU*     3.6    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 92 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88Y  GLU      3.2    17.0    +      -       -      +
     89Y  ALA*     3.7    14.3    -      -       -      +
     91Y  TYR*     1.3    77.6    -      -       -      +
     93Y  HIS*     1.3    56.3    +      -       -      +
     95Y  LYS*     3.4    15.8    +      -       -      +
     96Y  PHE*     3.0    25.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 93 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19Y  TYR*     3.8    29.9    -      +       -      -
     20Y  SER*     2.8    34.7    +      -       -      -
     23Y  LEU*     3.5    26.5    -      -       +      +
     24Y  TYR*     4.2    14.4    -      +       -      -
     89Y  ALA      3.0    18.6    +      -       -      +
     90Y  ALA*     3.6     5.6    -      -       -      +
     92Y  GLU*     1.3    75.2    -      -       -      +
     94Y  GLU*     1.3    61.3    +      -       -      +
     96Y  PHE*     3.1    22.0    +      +       -      +
     97Y  ILE*     2.9    44.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 94 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20Y  SER*     5.7     0.3    -      -       -      -
     24Y  TYR*     2.5    34.5    +      -       -      +
     50Y  GLU*     3.7     5.2    -      -       -      +
     90Y  ALA      2.8    14.5    +      -       -      +
     91Y  TYR*     3.8     7.6    -      -       -      +
     92Y  GLU      3.4     0.4    -      -       -      -
     93Y  HIS*     1.3    80.6    -      -       -      +
     95Y  LYS*     1.3    52.8    +      -       -      +
     97Y  ILE*     4.5     5.1    -      -       -      +
     98Y  SER*     2.7    37.0    +      -       -      -
    127Y  GLN*     2.8    32.8    +      -       -      +
    130Y  GLU*     3.0    36.1    -      -       -      +
    131Y  GLU*     4.0    16.6    -      -       +      -
    134Y  VAL*     4.2    16.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 95 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      13  MET      5.6     7.4    -      -       -      +
     91Y  TYR*     3.1    48.8    +      -       +      +
     92Y  GLU*     3.7    13.9    -      -       -      +
     94Y  GLU*     1.3    73.6    -      -       -      +
     96Y  PHE*     1.3    60.4    +      -       -      +
     98Y  SER*     3.9     1.5    -      -       -      -
     99Y  LYS*     3.0    29.3    +      -       -      +
    102Y  TYR*     5.8     0.2    -      -       -      -
    131Y  GLU*     4.0    25.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 96 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16Y  ARG*     4.3    26.2    -      -       +      -
     19Y  TYR*     6.0     2.7    -      +       -      -
     92Y  GLU      3.0    13.9    +      -       -      +
     93Y  HIS*     3.3    32.5    -      +       -      +
     95Y  LYS*     1.3    74.7    -      -       -      +
     97Y  ILE*     1.3    77.3    +      -       +      +
     99Y  LYS*     3.5     8.9    +      -       +      +
    100Y  SER*     3.2    22.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 97 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13Y  GLN*     3.9     7.6    -      -       -      +
     16Y  ARG*     4.0    26.7    -      -       +      +
     17Y  GLU*     3.9    17.5    -      -       -      +
     20Y  SER*     3.4    20.6    -      -       -      +
     50Y  GLU*     5.7     1.3    -      -       -      +
     93Y  HIS*     2.9    42.5    +      -       +      +
     94Y  GLU*     4.0     9.4    -      -       -      +
     96Y  PHE*     1.3    81.6    -      -       +      +
     98Y  SER*     1.3    62.4    +      -       -      +
    100Y  SER*     2.6    20.1    +      -       -      +
    101Y  ILE*     3.0    13.2    +      -       +      +
    127Y  GLN*     3.6    28.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 98 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94Y  GLU      2.7    22.3    +      -       -      -
     95Y  LYS*     3.9     4.3    -      -       -      -
     96Y  PHE      3.4     0.2    -      -       -      -
     97Y  ILE*     1.3    76.4    -      -       -      +
     99Y  LYS*     1.3    56.8    +      -       -      +
    101Y  ILE*     3.2     9.5    +      -       -      +
    102Y  TYR*     3.0    51.1    +      -       -      -
    127Y  GLN*     3.3    27.4    +      -       -      +
    131Y  GLU*     2.8    23.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 99 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95Y  LYS      3.0    19.5    +      -       -      +
     96Y  PHE*     3.7     9.6    -      -       +      +
     97Y  ILE      3.2     0.2    -      -       -      -
     98Y  SER*     1.3    75.2    -      -       -      +
    100Y  SER*     1.3    58.7    +      -       -      +
    102Y  TYR*     3.2    17.4    +      -       +      +
    103Y  GLU*     3.1    48.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 100 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13Y  GLN*     2.9    26.4    +      -       -      +
     16Y  ARG*     3.9    26.9    +      -       -      -
     96Y  PHE*     3.2    15.3    +      -       -      -
     97Y  ILE*     2.6    27.1    +      -       -      -
     99Y  LYS*     1.3    75.1    -      -       -      +
    101Y  ILE*     1.3    59.2    +      -       -      +
    103Y  GLU*     4.0    13.7    -      -       -      +
    104Y  LEU*     3.3    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 101 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13Y  GLN*     3.7    32.1    -      -       +      +
     17Y  GLU*     4.5     4.5    -      -       -      +
     57Y  PHE*     4.3     9.6    -      -       +      -
     97Y  ILE*     3.0    25.4    +      -       +      +
     98Y  SER*     3.4    11.4    -      -       -      +
     99Y  LYS      3.2     0.2    -      -       -      -
    100Y  SER*     1.3    76.2    -      -       -      +
    102Y  TYR*     1.3    65.9    +      -       +      +
    103Y  GLU      3.2     0.2    -      -       -      -
    104Y  LEU*     3.3     4.9    +      -       -      +
    105Y  ALA*     3.0    22.3    +      -       -      +
    120Y  LEU*     4.3    11.5    -      -       +      +
    123Y  PHE*     4.0    32.3    -      -       +      +
    124Y  ILE*     3.8    30.1    -      -       +      +
    127Y  GLN*     4.5     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 102 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     643  ARG*     3.3    17.6    +      -       -      -
    1123  LYS      5.6     2.5    -      -       -      -
    1133  ASP*     5.7     1.1    -      -       -      -
    1143  TYR*     3.5    53.4    -      +       +      -
    1153  SER*     2.8    26.9    +      -       -      -
     98Y  SER*     3.0    40.1    +      -       -      -
     99Y  LYS*     3.2    19.5    +      -       +      +
    101Y  ILE*     1.3    78.8    -      -       +      +
    103Y  GLU*     1.3    57.4    +      -       +      +
    105Y  ALA*     3.4     3.7    +      -       -      +
    106Y  ALA*     2.9    27.9    +      -       -      +
    124Y  ILE*     4.5    13.0    -      -       +      -
    131Y  GLU*     4.9     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 103 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16Y  ARG*     5.9     0.5    +      -       -      -
     99Y  LYS*     3.1    45.9    +      -       +      +
    100Y  SER*     4.1    10.6    -      -       -      +
    102Y  TYR*     1.3    75.1    -      -       +      +
    104Y  LEU*     1.3    58.7    +      -       -      +
    106Y  ALA*     3.2     7.4    +      -       -      +
    107Y  LEU*     2.9    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 104 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6Y  MET*     3.9    22.0    -      -       -      +
      9Y  ALA*     3.7    36.8    -      -       +      +
     10Y  LEU*     4.1    12.1    -      -       +      -
     13Y  GLN*     3.6    36.6    -      -       +      +
     16Y  ARG*     5.0     2.5    -      -       -      +
     57Y  PHE*     4.6     2.9    -      -       +      -
    100Y  SER      3.3    18.7    +      -       -      +
    101Y  ILE*     3.3     6.4    +      -       +      +
    103Y  GLU*     1.3    78.4    -      -       -      +
    105Y  ALA*     1.3    57.1    +      -       -      +
    107Y  LEU*     3.4     7.1    +      -       +      +
    108Y  ALA*     3.1    27.4    +      -       -      +
    120Y  LEU*     3.6    24.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 105 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1143  TYR*     4.4     9.9    -      -       +      -
    101Y  ILE      3.0    17.7    +      -       -      +
    102Y  TYR*     3.5     7.9    -      -       -      +
    103Y  GLU      3.3     0.2    -      -       -      -
    104Y  LEU*     1.3    75.6    -      -       -      +
    106Y  ALA*     1.3    58.1    +      -       -      +
    108Y  ALA*     3.5     0.8    +      -       -      -
    109Y  GLU*     3.1    35.2    +      -       -      +
    117Y  ARG*     3.6    28.1    -      -       -      +
    120Y  LEU*     3.7    13.6    -      -       +      +
    124Y  ILE*     4.4    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 106 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1143  TYR*     3.4    22.0    +      -       +      +
    102Y  TYR      2.9    13.9    +      -       -      +
    103Y  GLU*     3.2     9.6    +      -       -      +
    105Y  ALA*     1.3    73.9    -      -       -      +
    107Y  LEU*     1.3    64.5    -      -       -      +
    109Y  GLU*     3.5     5.7    +      -       -      +
    110Y  GLU*     3.2    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 107 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5Y  ARG*     4.3    27.8    -      -       +      +
      6Y  MET*     3.9    20.4    -      -       +      -
      9Y  ALA*     3.9    27.1    -      -       +      -
    103Y  GLU      2.9    17.0    +      -       -      +
    104Y  LEU*     3.6     7.6    -      -       +      +
    105Y  ALA      3.3     0.2    -      -       -      -
    106Y  ALA*     1.3    77.2    -      -       -      +
    108Y  ALA*     1.3    56.1    +      -       -      +
    110Y  GLU*     3.6    16.6    +      -       -      +
    111Y  GLU*     3.1    43.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 108 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6Y  MET*     3.6    17.2    -      -       +      +
    104Y  LEU      3.1    16.6    +      -       -      +
    105Y  ALA*     3.8     5.6    -      -       -      +
    106Y  ALA      3.3     0.2    -      -       -      -
    107Y  LEU*     1.3    76.3    -      -       -      +
    109Y  GLU*     1.3    59.9    +      -       -      +
    111Y  GLU*     3.6     0.4    +      -       -      -
    112Y  LYS*     3.1     6.2    +      -       -      -
    113Y  ASP*     2.8    48.1    +      -       +      +
    116Y  THR*     4.3     6.1    -      -       +      -
    117Y  ARG*     3.9    21.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 109 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1143  TYR*     2.9    34.4    +      -       -      -
    105Y  ALA      3.1    18.7    +      -       -      +
    106Y  ALA*     3.9     5.5    -      -       -      +
    107Y  LEU      3.4     0.4    -      -       -      -
    108Y  ALA*     1.3    76.5    -      -       -      +
    110Y  GLU*     1.3    61.9    +      -       -      +
    112Y  LYS*     3.5    15.1    +      -       -      +
    117Y  ARG*     3.2    34.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 110 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106Y  ALA      3.2    18.1    +      -       -      +
    107Y  LEU*     3.8    19.2    -      -       -      +
    109Y  GLU*     1.3    74.7    -      -       -      +
    111Y  GLU*     1.3    60.4    +      -       +      +
    112Y  LYS*     3.1    14.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 111 (chain Y). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3Y  SER*     2.7    32.2    +      -       -      -
      5Y  ARG*     3.7    27.5    -      -       -      +
      6Y  MET*     3.4    20.9    +      -       -      +
    107Y  LEU*     3.1    28.1    +      -       +      +
    108Y  ALA      4.3     2.5    -      -       -      +
    109Y  GLU      3.5     0.2    -      -       -      -
    110Y  GLU*     1.3    78.1    -      -       +      +
    112Y  LYS*     1.3    68.3    +      -       -      +
    113Y  ASP*     3.3    10.8    +      -       +      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


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

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

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