Contacts of the helix formed by residues 14 - 42 (chain A) in PDB entry 2RBD


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 HIS 14 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  PRO      3.8     1.2    +      -       -      -
     13A  LEU*     1.3    76.5    -      -       -      +
     15A  TYR*     1.3    65.6    +      -       -      +
     16A  GLY*     3.0    27.3    +      -       -      -
     17A  GLU*     2.9    52.6    +      -       +      +
     18A  VAL*     3.0    22.0    +      -       -      +
    123A  GLN*     2.8    34.8    +      -       +      -
    125A  ILE*     3.8    28.0    -      -       +      +
    160B  PRO*     3.7    20.6    -      -       +      +
    161B  PRO      3.4    15.0    -      -       -      +
    162B  LEU*     3.8    10.8    -      -       +      -
    163B  HIS      4.4     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 15 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  HIS*     1.3    71.6    -      -       -      +
     16A  GLY*     1.3    57.5    +      -       -      +
     18A  VAL*     3.8     6.9    -      -       +      +
     19A  PHE*     2.9    31.3    +      -       -      +
    161B  PRO*     2.9    41.5    +      -       +      +
    162B  LEU      3.4    27.8    -      -       -      -
    163B  HIS*     3.8    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 16 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  HIS*     3.0    11.9    +      -       -      -
     15A  TYR*     1.3    76.9    -      -       -      +
     17A  GLU*     1.3    59.1    +      -       -      +
     19A  PHE*     4.1     4.0    -      -       -      +
     20A  SER*     2.8    28.3    +      -       -      -
    123A  GLN*     2.9    24.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 17 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  PRO      4.5     1.0    -      -       -      +
     13A  LEU*     3.3    27.0    -      -       +      +
     14A  HIS*     2.9    50.5    +      -       +      +
     16A  GLY*     1.3    74.2    -      -       -      +
     18A  VAL*     1.3    61.6    +      -       -      +
     20A  SER*     4.7     2.2    -      -       -      -
     21A  THR*     2.8    36.0    +      -       -      +
    120A  ILE*     6.0     2.0    -      -       +      -
    123A  GLN*     4.3     3.8    -      -       +      +
    124A  SER*     3.5    16.9    -      -       -      +
    125A  ILE*     2.8    27.2    +      -       -      +
    126A  ARG*     2.8    22.8    +      -       -      +
    129A  VAL*     4.4     9.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 18 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  LEU*     3.7    28.0    -      -       +      -
     14A  HIS      3.0    16.7    +      -       -      +
     15A  TYR*     3.8     8.7    -      -       -      +
     17A  GLU*     1.3    77.5    -      -       -      +
     19A  PHE*     1.3    65.3    +      -       -      +
     21A  THR*     3.3     5.2    +      -       -      -
     22A  TRP*     2.9    28.2    +      -       +      +
     69A  LEU*     4.8     1.7    -      -       -      +
     74A  VAL*     3.8    32.3    -      -       +      -
    163B  HIS*     3.8    28.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 19 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  TYR      2.9    18.6    +      -       -      +
     16A  GLY*     4.1     3.6    -      -       -      +
     18A  VAL*     1.3    78.8    -      -       -      +
     20A  SER*     1.3    65.7    +      -       -      +
     22A  TRP*     3.7    15.7    -      +       -      +
     23A  THR*     2.8    58.3    +      -       +      -
----------------------------------------------------------
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Residues in contact with SER 20 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16A  GLY      2.8    20.4    +      -       -      -
     17A  GLU*     4.2     2.0    -      -       -      -
     19A  PHE*     1.3    85.6    -      -       -      +
     21A  THR*     1.3    56.4    +      -       -      +
     23A  THR*     3.4     4.0    +      -       -      -
     24A  TYR*     2.9    29.6    +      -       -      +
    116A  THR*     5.7     0.5    -      -       -      +
    120A  ILE*     3.7    31.5    -      -       -      +
    123A  GLN*     3.2    21.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 21 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  LEU*     5.6     0.5    -      -       -      +
     17A  GLU*     2.8    23.2    +      -       +      +
     18A  VAL*     3.3     4.5    +      -       -      -
     20A  SER*     1.3    73.4    -      -       -      +
     22A  TRP*     1.3    67.0    +      -       -      +
     24A  TYR*     3.3     6.1    +      -       -      +
     25A  LEU*     3.0    26.4    +      -       -      +
     65A  LEU*     4.2    12.4    -      -       +      +
     68A  LEU*     4.1    18.9    -      -       +      +
     69A  LEU*     3.4    22.7    -      -       -      +
    120A  ILE*     4.8     3.6    -      -       +      -
    129A  VAL*     4.2    11.2    -      -       +      -
    133A  PHE*     3.7    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 22 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  VAL*     2.9    21.1    +      -       +      +
     19A  PHE*     3.7    15.5    -      +       -      +
     21A  THR*     1.3    77.9    +      -       -      +
     23A  THR*     1.3    76.7    +      -       +      +
     25A  LEU*     3.4     3.1    +      -       -      +
     26A  SER*     2.9    37.4    +      -       -      -
     69A  LEU*     4.0    13.9    -      -       +      +
     74A  VAL*     4.3    10.8    -      -       +      -
     75A  GLY      3.1    27.6    +      -       -      -
     76A  LEU      4.0     0.8    -      -       -      -
     77A  PRO*     3.6    40.4    -      -       +      +
     78A  PRO*     5.4     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 23 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  PHE*     2.8    50.5    +      -       +      -
     20A  SER*     3.8     5.2    -      -       -      -
     22A  TRP*     1.3    92.5    -      -       +      +
     24A  TYR*     1.3    58.6    +      -       -      +
     26A  SER*     3.3     4.5    +      -       -      -
     27A  THR*     2.8    41.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 24 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  SER      2.9    17.5    +      -       -      +
     21A  THR*     3.3     6.5    +      -       -      +
     23A  THR*     1.3    76.8    -      -       -      +
     25A  LEU*     1.3    57.4    +      -       -      +
     27A  THR*     3.3     2.8    +      -       -      -
     28A  ASN*     2.9    33.3    +      -       -      +
     61A  GLU*     2.9    32.2    +      -       -      -
     65A  LEU*     3.6    16.4    -      -       +      -
    113A  GLY      4.6     0.7    -      -       -      -
    116A  THR*     3.8    28.5    -      -       +      -
    117A  CYS*     3.6    18.2    -      -       -      -
    120A  ILE*     4.3     5.2    -      -       +      -
    133A  PHE*     3.7    23.1    -      +       +      -
    136A  PHE*     3.8    13.5    -      +       -      -
    140A  LYS*     3.2    22.7    -      -       -      -
    171A  PG4      3.4    32.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 25 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  THR      3.0    16.8    +      -       -      +
     22A  TRP      3.6     3.6    -      -       -      +
     24A  TYR*     1.3    77.1    -      -       -      +
     26A  SER*     1.3    58.2    +      -       -      +
     28A  ASN*     3.3     1.9    +      -       -      +
     29A  ASN*     2.9    38.1    +      -       -      +
     62A  ASN*     3.2    43.7    -      -       +      +
     65A  LEU*     4.1    18.6    -      -       +      +
     66A  GLU*     3.6    31.9    -      -       +      +
     69A  LEU*     3.9    18.2    -      -       +      -
     76A  LEU*     4.1     2.5    -      -       +      -
     77A  PRO*     3.6    28.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 26 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  TRP*     2.9    29.0    +      -       -      -
     23A  THR*     3.7     7.9    -      -       -      -
     25A  LEU*     1.3    76.4    -      -       -      +
     27A  THR*     1.3    62.9    +      -       -      +
     29A  ASN*     3.2     9.0    +      -       -      +
     30A  GLY*     3.0    19.2    +      -       -      -
     77A  PRO*     3.8    25.0    -      -       -      +
     78A  PRO      5.2     2.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 27 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  THR*     2.8    32.3    +      -       -      +
     24A  TYR*     3.6     3.0    -      -       -      -
     26A  SER*     1.3    70.3    -      -       -      +
     28A  ASN*     1.3    58.7    +      -       -      +
     30A  GLY*     3.1     2.8    +      -       -      -
     31A  LEU*     2.9    45.2    +      -       +      +
    171A  PG4      3.5    22.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 28 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  TYR*     2.9    21.7    +      -       -      +
     25A  LEU      3.3     4.9    +      -       -      +
     27A  THR*     1.3    76.8    -      -       -      +
     29A  ASN*     1.3    55.9    +      -       -      +
     31A  LEU*     3.2     0.9    +      -       -      +
     32A  ILE*     2.8    37.1    +      -       -      +
     58A  MSE      3.6    28.3    +      -       +      +
     61A  GLU*     3.0    25.9    +      -       -      +
     62A  ASN*     3.0    31.1    +      -       -      +
     65A  LEU*     4.3     0.2    -      -       -      +
    171A  PG4      2.8    32.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 29 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  LEU*     2.9    24.2    +      -       -      +
     26A  SER*     3.2     9.6    +      -       -      +
     28A  ASN*     1.3    76.5    -      -       -      +
     30A  GLY*     1.3    61.6    +      -       -      +
     32A  ILE*     3.6     8.1    +      -       -      +
     33A  ASN*     3.2    22.0    +      -       -      +
     62A  ASN*     3.2    21.1    +      -       -      -
     66A  GLU*     4.9     5.9    +      -       -      +
     77A  PRO*     3.7    29.3    +      -       -      +
     78A  PRO      4.3     2.7    +      -       -      +
     79A  ALA*     3.5    37.7    -      -       +      +
     80A  PRO*     3.9     9.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 30 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  SER      3.0    12.9    +      -       -      -
     27A  THR*     3.1     3.3    +      -       -      -
     29A  ASN*     1.3    79.8    -      -       -      +
     31A  LEU*     1.3    56.7    +      -       -      +
     33A  ASN*     3.3     8.7    +      -       -      +
     34A  GLY*     2.9    24.9    +      -       -      -
     80A  PRO*     4.9     6.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  THR*     2.9    30.4    +      -       +      +
     30A  GLY*     1.3    75.8    -      -       -      +
     32A  ILE*     1.3    58.9    +      -       -      +
     34A  GLY*     4.4     1.1    -      -       -      +
     35A  TYR*     2.8    48.1    +      -       +      +
     58A  MSE      3.7    17.9    -      -       +      -
    109A  ASP*     3.5    31.2    -      -       +      +
    171A  PG4      3.8    45.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 32 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  ASN      2.8    22.5    +      -       -      +
     29A  ASN*     3.8     8.1    -      -       -      +
     31A  LEU*     1.3    71.1    -      -       -      +
     33A  ASN*     1.3    58.0    +      -       -      +
     35A  TYR*     3.5     2.8    +      -       -      +
     36A  ARG*     2.9    68.8    +      -       -      +
     55A  ILE*     4.2    15.2    -      -       +      +
     58A  MSE      3.8    30.1    -      -       +      -
     59A  GLN*     3.9    22.0    -      -       +      +
     62A  ASN*     3.6    28.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  ASN      3.2    12.1    +      -       -      +
     30A  GLY*     3.6     8.5    +      -       -      +
     31A  LEU      3.2     0.2    -      -       -      -
     32A  ILE*     1.3    80.4    -      -       -      +
     34A  GLY*     1.3    63.3    +      -       -      +
     36A  ARG*     3.3     8.4    +      -       -      +
     37A  SER      3.1    16.8    +      -       -      -
     80A  PRO*     3.6    35.4    -      -       +      +
     81A  PRO*     3.9    11.4    -      -       -      +
     83A  ARG*     3.0    47.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  GLY      2.9    14.4    +      -       -      -
     31A  LEU*     3.8     2.0    -      -       -      -
     33A  ASN*     1.3    80.5    -      -       -      +
     35A  TYR*     1.3    62.7    +      -       -      +
     37A  SER*     3.1    10.0    +      -       -      -
     38A  PHE*     2.8    35.5    +      -       -      -
     83A  ARG*     5.6     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  LEU*     2.8    36.4    +      -       +      +
     34A  GLY*     1.3    72.5    -      -       -      -
     36A  ARG*     1.3    61.9    +      -       -      +
     38A  PHE*     3.1    22.3    +      +       -      +
     39A  ILE*     2.9    24.4    +      -       -      +
     51A  ILE*     3.5    26.3    -      -       +      +
     54A  ALA*     4.0    22.2    -      -       +      -
     55A  ILE*     3.9    11.0    -      -       +      -
     58A  MSE      3.5    27.6    -      -       +      -
    106A  ILE*     3.7    33.0    +      -       +      +
    109A  ASP*     2.7    43.1    +      -       -      +
    171A  PG4      4.4     5.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 36 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  ILE*     2.9    42.2    +      -       -      +
     33A  ASN*     3.6     7.5    -      -       -      +
     34A  GLY      3.3     0.2    -      -       -      -
     35A  TYR*     1.3    76.1    -      -       -      +
     37A  SER*     1.3    63.4    +      -       -      +
     39A  ILE*     3.5    22.0    +      -       +      +
     40A  ASN*     3.7    13.0    +      -       -      -
     55A  ILE*     3.9    19.0    -      -       +      +
     59A  GLN*     3.1    25.3    -      -       -      +
     80A  PRO      5.0     3.8    +      -       -      -
     81A  PRO      4.4     3.6    +      -       -      -
     82A  ASP*     3.3    57.8    +      -       -      +
     83A  ARG*     3.8    15.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  ASN      3.1     6.7    +      -       -      -
     34A  GLY*     3.1    12.8    +      -       -      -
     36A  ARG*     1.3    77.2    -      -       -      +
     38A  PHE*     1.3    65.2    +      -       -      +
     40A  ASN*     2.9    20.3    +      -       -      +
     41A  HIS*     3.2    32.5    +      -       -      -
     83A  ARG*     3.5    34.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  GLY*     2.8    23.9    +      -       -      -
     35A  TYR*     3.1    31.8    +      +       -      +
     37A  SER*     1.3    76.1    -      -       -      +
     39A  ILE*     1.3    58.0    +      -       -      +
     41A  HIS*     3.0    15.7    +      +       +      +
     42A  THR*     2.7    25.2    +      -       -      -
     51A  ILE*     4.1     6.1    -      -       +      -
     97A  PHE*     4.0    39.7    -      +       +      -
    102A  ILE*     3.7    39.7    -      -       +      -
    105A  THR*     4.0    33.9    -      -       +      -
    106A  ILE*     4.4     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  TYR      2.9    10.3    +      -       -      +
     36A  ARG*     3.6    13.2    -      -       +      +
     37A  SER      3.2     0.4    +      -       -      -
     38A  PHE*     1.3    74.7    -      -       -      +
     40A  ASN*     1.3    69.8    +      -       -      +
     41A  HIS      3.4     0.2    +      -       -      -
     42A  THR*     3.5    19.4    +      -       -      +
     48A  LYS*     4.3    27.5    +      -       +      -
     51A  ILE*     3.7    19.2    -      -       +      +
     52A  ASP*     3.1    28.3    -      -       -      +
     55A  ILE*     3.3    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  ARG      3.7    13.4    +      -       -      -
     37A  SER*     2.9    13.5    +      -       -      +
     39A  ILE*     1.3    85.1    -      -       -      +
     41A  HIS*     1.3    58.5    -      -       +      +
     42A  THR      3.5     0.8    -      -       -      +
     83A  ARG*     4.7     7.9    -      -       -      +
     84A  PRO      2.9    24.5    +      -       -      -
     85A  ALA*     3.7     6.4    -      -       -      +
     86A  ALA*     3.1    41.9    +      -       +      +
     88A  LEU*     3.3    22.5    +      -       -      +
     91A  ILE*     3.4    11.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  SER*     3.2    38.5    +      -       -      -
     38A  PHE*     3.0    10.8    +      +       -      +
     40A  ASN*     1.3    79.8    -      -       +      +
     42A  THR*     1.3    57.2    +      -       -      +
     88A  LEU*     3.2     9.6    -      -       -      +
     91A  ILE*     3.9    21.4    -      -       +      +
     95A  ALA      3.2    26.0    -      -       -      -
     96A  ARG*     2.8    37.7    +      -       -      +
     97A  PHE*     3.0    45.6    +      +       +      +
    102A  ILE*     4.0     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  PHE      2.7    20.5    +      -       -      -
     39A  ILE*     3.5     9.7    +      -       -      +
     40A  ASN      3.5     1.3    -      -       -      +
     41A  HIS*     1.3    77.9    -      -       -      +
     43A  GLY*     1.3    63.3    +      -       -      +
     44A  ASP      3.2    28.5    -      -       -      +
     47A  LEU*     3.9    14.3    -      -       +      +
     48A  LYS*     3.6    28.7    +      -       -      +
     51A  ILE*     3.4    17.3    -      -       -      +
     88A  LEU*     4.0    10.4    -      -       -      +
     99A  ASP*     3.4    12.1    -      -       -      +
    102A  ILE*     3.6     9.9    -      -       -      +
----------------------------------------------------------
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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