Contacts of the helix formed by residues 486 - 509 (chain B) in PDB entry 4WMJ


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 THR 486 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52B  ASP*     2.8    27.4    +      -       +      +
    175B  LEU*     3.8     5.6    -      -       -      -
    178B  TYR*     3.3    16.8    -      -       -      +
    484B  LYS*     3.8    28.0    -      -       +      +
    485B  PHE*     1.3    77.3    -      -       -      +
    487B  PRO*     1.3    77.7    -      -       -      +
    488B  PHE      3.1     1.7    +      -       -      -
    489B  THR*     3.0    19.8    +      -       +      +
    490B  LEU*     2.8    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 487 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  LEU*     4.0    26.7    -      -       +      -
    178B  TYR*     3.6    26.0    -      -       +      -
    295B  ASN*     3.5    46.0    -      -       +      +
    298B  LYS*     3.8    10.3    -      -       +      -
    299B  LEU*     3.4    19.4    -      -       -      +
    486B  THR*     1.3    88.3    -      -       -      +
    488B  PHE*     1.3    57.7    +      -       -      +
    490B  LEU*     3.8     0.4    -      -       +      +
    491B  GLY      2.9    24.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 488 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  THR*     3.7    25.4    -      -       +      -
     50B  PRO*     4.0    20.6    -      -       +      -
     51B  ASN*     6.0     1.3    -      -       +      -
     52B  ASP*     3.4    35.7    -      -       +      +
    298B  LYS*     3.4    21.8    +      -       +      +
    301B  ASP*     3.8    24.2    -      -       +      -
    302B  GLY*     3.2    21.6    -      -       -      -
    305B  PHE*     3.5    31.9    -      +       +      -
    486B  THR*     3.2     1.0    +      -       -      -
    487B  PRO*     1.3    80.6    -      -       -      +
    489B  THR*     1.3    62.2    +      -       -      +
    491B  GLY      3.2     1.4    +      -       -      -
    492B  ALA*     2.9    26.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 489 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  THR*     5.4     0.7    -      -       +      -
     52B  ASP*     3.6    31.2    -      -       +      +
     55B  ILE*     5.0     9.4    -      -       +      -
    482B  VAL*     4.3    20.4    -      -       +      -
    484B  LYS      2.7    27.4    +      -       -      +
    485B  PHE*     3.3     7.2    -      -       -      -
    486B  THR*     3.0    24.9    +      -       -      +
    488B  PHE*     1.3    77.4    -      -       +      +
    490B  LEU*     1.3    62.4    +      -       -      +
    492B  ALA*     3.3     6.0    +      -       -      +
    493B  LEU*     3.0    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 490 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170B  MET*     4.8     1.8    -      -       -      -
    171B  VAL*     4.2    15.0    -      -       +      -
    174B  ALA*     3.8    31.0    -      -       +      -
    175B  LEU*     3.8    25.6    -      -       +      -
    299B  LEU*     4.4     2.0    -      -       +      -
    348B  LEU*     4.8    11.9    -      -       +      -
    351B  PHE*     4.3    21.3    -      -       +      -
    485B  PHE*     5.2     8.3    -      -       +      -
    486B  THR      2.8    19.1    +      -       -      +
    487B  PRO      3.8     2.5    -      -       -      +
    489B  THR*     1.3    78.6    +      -       -      +
    491B  GLY*     1.3    56.5    +      -       -      +
    493B  LEU*     3.1     7.8    +      -       +      -
    494B  ILE*     2.9    57.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 491 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    280B  TRP*     3.7     9.0    -      -       -      -
    299B  LEU*     3.5    34.6    -      -       -      +
    303B  ALA*     3.5    17.7    -      -       -      +
    487B  PRO      2.9    11.3    +      -       -      -
    488B  PHE      3.7     1.6    -      -       -      -
    490B  LEU*     1.3    75.9    -      -       -      +
    492B  ALA*     1.4    62.4    +      -       -      +
    494B  ILE      3.5     0.3    +      -       -      -
    495B  ALA      3.1    18.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 492 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55B  ILE*     4.0    24.7    -      -       +      -
    302B  GLY*     3.2    21.6    -      -       -      +
    305B  PHE*     4.5     7.4    -      -       +      -
    306B  MET*     3.3    24.4    -      -       +      +
    488B  PHE*     2.9    18.0    +      -       +      +
    489B  THR*     3.6     5.6    -      -       -      +
    491B  GLY*     1.4    76.7    -      -       -      +
    493B  LEU*     1.3    56.6    +      -       -      +
    496B  MET*     3.0    24.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 493 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55B  ILE*     4.4    17.0    -      -       +      -
    306B  MET*     5.7     0.9    -      -       +      -
    348B  LEU*     5.8     0.9    -      -       +      -
    351B  PHE*     4.9    13.7    -      -       +      -
    410B  LEU*     4.4    13.2    -      -       +      -
    480B  ILE*     4.0    17.7    -      -       +      -
    482B  VAL*     4.0    13.2    -      -       +      -
    485B  PHE*     3.6    33.4    -      -       +      -
    489B  THR      3.0    20.8    +      -       -      +
    490B  LEU*     3.1     6.9    +      -       +      +
    492B  ALA*     1.3    75.9    -      -       +      +
    494B  ILE*     1.3    65.8    +      -       -      +
    496B  MET*     3.1    38.1    +      -       +      +
    497B  TYR*     3.2    20.7    +      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 494 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170B  MET*     3.8    26.2    -      -       +      -
    171B  VAL*     4.0    14.1    -      -       +      -
    279B  LEU*     4.5     4.5    -      -       +      -
    280B  TRP*     3.6    31.4    -      -       +      -
    299B  LEU*     4.6     3.8    -      -       +      -
    351B  PHE*     4.5     5.2    -      -       +      -
    354B  TYR*     4.0    15.3    -      -       +      +
    355B  PHE*     3.6    23.1    -      -       +      -
    490B  LEU*     2.9    43.3    +      -       +      +
    493B  LEU*     1.3    76.8    -      -       -      +
    495B  ALA*     1.3    56.8    +      -       -      +
    496B  MET      3.2     0.3    +      -       -      -
    497B  TYR      3.2     2.4    +      -       -      -
    498B  GLU*     2.9    32.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 495 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108B  ARG*     3.7    19.5    -      -       -      +
    280B  TRP*     4.4     0.6    -      -       -      -
    303B  ALA*     3.8    19.5    -      -       +      +
    306B  MET*     3.8    12.8    -      -       +      -
    307B  ASP*     4.1     2.9    -      -       -      +
    491B  GLY      3.1    18.5    +      -       -      +
    492B  ALA      3.8     4.0    -      -       -      +
    494B  ILE*     1.3    75.7    -      -       -      +
    496B  MET*     1.3    62.2    +      -       -      +
    498B  GLU*     3.2    14.4    +      -       -      +
    499B  HIS*     2.9    26.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 496 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  ILE*     6.1     0.7    -      -       -      -
     55B  ILE*     5.8     4.0    -      -       -      -
     57B  LEU*     5.4     4.5    -      -       -      -
    306B  MET*     3.7    26.9    -      -       +      -
    319B  ALA*     4.2    14.1    -      -       -      -
    320B  PRO*     3.7    17.0    -      -       +      +
    323B  LEU*     3.7    31.2    -      -       +      -
    480B  ILE*     3.8    20.0    -      -       +      -
    492B  ALA      3.0    14.4    +      -       -      +
    493B  LEU*     3.3    29.8    -      -       +      +
    494B  ILE      3.1     0.2    -      -       -      -
    495B  ALA*     1.3    76.7    -      -       -      +
    497B  TYR*     1.3    84.0    +      -       +      +
    499B  HIS*     3.2     2.9    +      -       -      -
    500B  LYS*     2.9    24.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 497 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323B  LEU*     4.5     7.6    -      -       +      -
    341B  LEU*     3.6    18.3    -      -       +      +
    351B  PHE*     3.9    29.6    -      +       -      -
    355B  PHE*     3.3    30.7    -      +       +      -
    408B  ASP*     2.7    41.8    +      -       -      +
    410B  LEU*     4.2     9.1    -      -       +      +
    480B  ILE*     3.6    10.4    -      -       +      +
    493B  LEU*     3.2    19.1    +      -       +      -
    494B  ILE      3.7     0.2    -      -       -      +
    496B  MET*     1.3    97.0    -      -       +      +
    498B  GLU*     1.3    64.9    +      -       -      +
    500B  LYS*     3.2    27.5    +      -       +      +
    501B  ILE*     3.0    33.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 498 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104B  HIS*     3.7     5.1    -      -       -      +
    108B  ARG*     2.8    34.1    +      -       -      -
    276B  ARG      5.8     0.2    -      -       -      +
    277B  TYR*     3.7    40.9    +      -       +      -
    280B  TRP*     2.9    30.6    +      -       -      -
    354B  TYR*     4.3     4.7    +      -       -      +
    355B  PHE*     4.3     6.7    -      -       +      -
    494B  ILE*     2.9    25.3    +      -       +      +
    495B  ALA*     3.3     8.8    -      -       -      +
    497B  TYR*     1.3    75.6    -      -       -      +
    499B  HIS*     1.3    66.0    +      -       +      +
    501B  ILE*     3.3    10.3    +      -       +      +
    502B  PHE*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 499 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88B  MET*     4.0    14.7    -      -       +      +
     89B  PHE*     4.2     1.6    -      +       -      -
    104B  HIS*     4.8     4.2    +      -       -      -
    105B  VAL*     3.8    17.0    -      -       -      +
    108B  ARG*     3.8     9.3    +      -       -      -
    306B  MET*     4.6     3.6    +      -       -      +
    307B  ASP*     2.7    38.8    +      -       -      -
    310B  PHE*     3.2    44.4    -      +       +      +
    320B  PRO*     3.5    22.0    -      -       +      -
    495B  ALA*     2.9    19.5    +      -       +      +
    497B  TYR      3.1     0.2    -      -       -      -
    498B  GLU*     1.3    81.2    -      -       +      +
    500B  LYS*     1.3    59.2    +      -       -      +
    502B  PHE*     3.7     4.9    -      -       +      +
    503B  THR*     2.8    34.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 500 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320B  PRO*     3.6    16.2    -      -       +      +
    323B  LEU*     3.7    30.9    -      -       +      +
    324B  ALA*     3.5    19.9    -      -       -      +
    327B  GLY*     5.2     3.5    -      -       -      -
    339B  HIS*     3.7    36.8    +      -       -      -
    359B  ASP*     4.6    10.2    +      -       -      +
    408B  ASP*     4.6     1.2    +      -       -      -
    496B  MET      2.9    12.9    +      -       -      +
    497B  TYR*     3.2    31.1    +      -       +      +
    499B  HIS*     1.3    76.1    -      -       -      +
    501B  ILE*     1.3    59.8    +      -       +      +
    503B  THR      3.2     1.7    +      -       -      -
    504B  GLN*     2.9    55.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 501 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277B  TYR*     3.5    23.6    -      -       +      +
    355B  PHE*     4.0    18.8    -      -       +      -
    358B  GLY*     3.8     5.2    -      -       -      +
    359B  ASP*     3.7    46.0    -      -       +      +
    362B  SER*     3.6    21.5    -      -       -      -
    363B  ASN*     3.0    29.3    +      -       -      +
    497B  TYR*     3.0    21.4    +      -       +      +
    498B  GLU*     3.5     7.0    -      -       -      +
    500B  LYS*     1.3    79.2    -      -       +      +
    502B  PHE*     1.3    64.2    +      -       -      +
    504B  GLN*     3.3     4.5    +      -       -      +
    505B  GLY      3.0    10.4    +      -       -      -
    512B  SER*     3.8     3.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 502 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81B  VAL*     4.5     4.5    -      -       +      -
     84B  ALA*     3.6    26.7    -      -       +      -
     85B  ARG*     3.6    25.1    -      -       +      -
     88B  MET*     3.9    18.4    -      -       +      -
     94B  ILE*     3.9    23.8    -      -       +      -
    104B  HIS*     6.3     0.4    -      -       -      +
    277B  TYR*     5.3     0.2    +      -       -      -
    310B  PHE*     3.8    21.8    -      +       -      -
    498B  GLU      3.0    15.9    +      -       -      +
    499B  HIS*     3.7     6.7    -      -       +      +
    501B  ILE*     1.3    79.1    -      -       -      +
    503B  THR*     1.3    66.2    +      -       -      +
    505B  GLY*     3.2     2.8    +      -       -      -
    506B  VAL*     3.0    43.9    +      -       +      +
    512B  SER*     4.4     6.6    +      -       -      -
    513B  PHE*     3.8    29.2    -      +       +      -
----------------------------------------------------------
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Residues in contact with THR 503 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81B  VAL*     3.9    28.9    -      -       +      +
    310B  PHE*     3.6    22.9    -      -       -      -
    321B  VAL*     4.2    17.8    -      -       +      +
    324B  ALA*     3.5    20.6    -      -       +      -
    325B  LEU*     5.6     0.2    -      -       +      -
    499B  HIS      2.8    21.4    +      -       -      -
    500B  LYS*     3.6     4.9    -      -       -      -
    502B  PHE*     1.3    80.4    -      -       -      +
    504B  GLN*     1.3    64.5    +      -       -      +
    506B  VAL*     3.4     6.8    +      -       -      +
    507B  ILE*     3.1    29.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 504 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324B  ALA*     3.1    36.7    +      -       +      +
    327B  GLY*     3.7    22.4    -      -       -      -
    328B  VAL*     3.9     4.6    -      -       +      +
    359B  ASP*     4.7     9.4    -      -       -      +
    363B  ASN*     3.9     5.8    +      -       -      +
    380B  PRO*     5.1     5.0    -      -       -      +
    500B  LYS*     2.9    40.0    +      -       -      +
    501B  ILE*     3.7     6.4    -      -       -      +
    502B  PHE      3.3     0.2    -      -       -      -
    503B  THR*     1.3    76.8    -      -       -      +
    505B  GLY*     1.3    57.2    +      -       -      +
    507B  ILE*     3.1     8.9    +      -       -      +
    508B  TRP*     2.9    68.3    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 505 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    363B  ASN*     3.9     3.9    -      -       -      +
    501B  ILE      3.0    10.7    +      -       -      -
    502B  PHE      3.2     1.5    +      -       -      -
    504B  GLN*     1.3    75.6    -      -       -      +
    506B  VAL*     1.3    57.0    +      -       -      +
    508B  TRP      3.5     0.2    +      -       -      -
    509B  ASP*     2.9    23.4    +      -       -      -
    510B  ILE*     3.1    31.5    +      -       -      +
    512B  SER*     3.4    23.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 506 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4B  LYS*     3.4    35.4    +      -       -      +
     79B  ARG      3.5     9.0    -      -       -      +
     81B  VAL*     4.1    15.0    -      -       +      -
     84B  ALA*     3.7    30.1    -      -       +      -
    502B  PHE*     3.0    34.7    +      -       +      +
    503B  THR*     3.6     9.4    -      -       -      +
    504B  GLN      3.2     0.2    -      -       -      -
    505B  GLY*     1.3    71.2    -      -       -      +
    507B  ILE*     1.3    67.9    +      -       -      +
    509B  ASP*     3.1    15.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 507 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7B  LEU*     3.8    17.8    -      -       +      +
     13B  TYR*     6.0     0.2    -      -       +      -
     75B  LEU*     4.1    23.8    -      -       +      +
     76B  ALA*     4.7     3.1    -      -       -      -
     79B  ARG*     2.8    48.2    +      -       +      -
     81B  VAL*     4.1    15.7    -      -       +      -
    324B  ALA*     5.3     1.8    -      -       +      -
    325B  LEU*     4.0    27.1    -      -       +      -
    328B  VAL*     4.4    22.9    -      -       +      -
    503B  THR*     3.1    28.3    +      -       +      +
    504B  GLN*     3.1     7.8    +      -       -      +
    506B  VAL*     1.3    73.9    -      -       -      +
    508B  TRP*     1.3    58.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 508 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7B  LEU*     3.7    19.9    -      -       +      +
     79B  ARG*     4.5     0.2    -      -       -      -
    327B  GLY      5.3     2.2    -      -       -      -
    328B  VAL*     4.0    20.9    -      -       +      +
    331B  GLY*     6.2     0.9    -      -       -      -
    332B  ASN*     2.9    32.1    -      -       -      +
    363B  ASN*     3.7    13.9    -      -       +      -
    376B  TYR*     2.5    35.3    +      +       +      -
    377B  SER      3.5    12.1    +      -       -      -
    378B  THR*     3.5    33.0    -      -       +      -
    379B  GLY*     3.5    19.1    -      -       -      -
    380B  PRO*     4.5     4.9    -      -       +      -
    504B  GLN*     2.9    51.7    +      -       +      +
    505B  GLY      4.2     0.2    -      -       -      -
    507B  ILE*     1.3    76.3    -      -       +      +
    509B  ASP*     1.3    65.7    +      -       -      +
    510B  ILE*     3.4    28.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 509 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2B  GLU      5.1     0.5    -      -       -      +
      3B  PRO*     4.4     1.9    -      -       -      +
      4B  LYS*     3.5    48.3    +      -       +      +
      5B  VAL      5.4     0.2    -      -       -      +
     79B  ARG*     3.7    17.5    -      -       -      +
     96B  PHE*     5.3     0.7    -      -       -      -
    368B  THR*     3.1    14.9    -      -       +      -
    369B  ARG*     2.9    50.8    +      -       -      +
    370B  SER*     4.7     1.0    +      -       -      -
    376B  TYR*     4.5     2.7    -      -       -      +
    505B  GLY      2.9     7.1    +      -       -      -
    506B  VAL*     3.1    10.3    +      -       -      +
    507B  ILE      3.2     0.2    -      -       -      -
    508B  TRP*     1.3    79.1    -      -       -      +
    510B  ILE*     1.3    58.6    +      -       -      +
----------------------------------------------------------
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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