Contacts of the helix formed by residues 482 - 505 (chain D) in PDB entry 1JLH


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 482 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    556C  VAL*     4.4    19.6    -      -       +      +
     47D  HIS*     4.7     5.2    +      -       -      +
    170D  LEU*     4.1     3.1    -      -       -      -
    173D  TYR*     3.5    15.3    -      -       +      +
    480D  LYS*     3.0    30.8    +      -       +      +
    481D  LEU*     1.3    76.9    -      -       -      +
    483D  PRO*     1.3    76.7    -      -       -      +
    484D  PHE*     3.6     7.6    +      -       -      +
    485D  MET*     3.1    21.4    +      -       -      +
    486D  LEU*     2.9    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 483 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170D  LEU*     3.9    30.5    -      -       +      -
    173D  TYR*     3.6    27.6    -      -       +      -
    291D  ASN*     3.6    45.8    -      -       +      +
    294D  GLN*     3.8     8.3    -      -       +      -
    295D  LEU*     3.4    17.0    -      -       -      +
    482D  THR*     1.3    90.1    -      -       -      +
    484D  PHE*     1.3    62.2    +      -       -      +
    486D  LEU      3.4     0.2    +      -       -      -
    487D  GLY      3.1    17.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 484 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  THR*     3.5    30.7    -      -       +      -
     47D  HIS*     3.5    43.7    -      +       +      -
    294D  GLN*     3.3    39.7    +      -       -      +
    297D  SER*     3.5    24.7    -      -       -      -
    298D  GLY*     3.2    37.1    -      -       -      -
    301D  TRP*     3.8    23.1    -      +       +      -
    482D  THR*     3.2     7.1    +      -       -      +
    483D  PRO*     1.3    80.7    -      -       -      +
    485D  MET*     1.3    68.3    +      -       +      +
    487D  GLY      3.2     9.5    +      -       -      -
    488D  ALA*     3.2     5.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 485 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  THR*     4.4     5.6    -      -       +      +
     47D  HIS      4.3     5.8    -      -       -      +
     48D  GLY*     3.8    31.6    -      -       -      +
     49D  HIS      3.9     5.6    -      -       -      +
     50D  ILE*     3.5    42.4    -      -       +      -
    478D  PHE*     3.8    24.7    -      -       +      -
    479D  THR      4.8     1.3    -      -       -      +
    480D  LYS      3.2    28.7    -      -       -      +
    481D  LEU*     4.5     1.3    -      -       -      -
    482D  THR*     3.1    13.5    +      -       -      +
    484D  PHE*     1.3    83.2    -      -       +      +
    486D  LEU*     1.3    63.6    +      -       -      +
    488D  ALA*     3.1     6.4    +      -       -      +
    489D  LEU*     3.0    28.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 486 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165D  MET*     4.5    11.7    -      -       -      -
    166D  VAL*     4.0    24.0    -      -       +      -
    169D  ALA*     4.0    11.4    -      -       +      -
    170D  LEU*     3.8    27.8    -      -       +      -
    295D  LEU*     4.1     8.1    -      -       +      -
    344D  LEU*     4.6     9.9    -      -       +      -
    347D  PHE*     4.5    10.5    -      -       +      -
    481D  LEU*     4.2    23.7    -      -       +      +
    482D  THR      2.9    16.3    +      -       -      +
    483D  PRO      3.8     4.3    -      -       -      +
    485D  MET*     1.3    75.8    -      -       -      +
    487D  GLY*     1.3    64.1    +      -       -      +
    489D  LEU*     3.3     5.5    +      -       +      +
    490D  VAL*     3.0    46.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 487 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276D  TRP*     3.6     7.7    -      -       -      -
    295D  LEU*     3.4    34.0    -      -       -      +
    299D  ALA*     3.3    11.0    -      -       -      +
    483D  PRO      3.1    10.9    +      -       -      -
    484D  PHE      3.2     2.2    +      -       -      -
    486D  LEU*     1.3    78.0    -      -       -      +
    488D  ALA*     1.3    60.3    +      -       -      +
    490D  VAL      3.6     0.2    +      -       -      -
    491D  ALA*     3.1    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 488 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  THR*     5.2     0.4    -      -       +      -
     50D  ILE*     4.2    21.3    -      -       +      -
    298D  GLY*     3.3    20.3    -      -       -      +
    301D  TRP*     5.1     3.8    -      -       +      -
    302D  MET*     3.3    22.5    -      -       +      +
    484D  PHE*     3.2    15.4    +      -       +      +
    485D  MET*     3.1    13.8    +      -       -      +
    487D  GLY*     1.3    77.4    -      -       -      +
    489D  LEU*     1.3    57.7    +      -       -      +
    491D  ALA      3.5     0.3    +      -       -      -
    492D  MET*     2.9    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 489 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50D  ILE*     4.6    16.6    -      -       +      -
    344D  LEU*     5.7     2.7    -      -       +      -
    347D  PHE*     4.7    15.0    -      -       +      -
    406D  LEU*     5.1     6.3    -      -       +      -
    476D  ILE*     4.2     9.4    -      -       +      -
    478D  PHE*     3.6    46.9    -      -       +      -
    481D  LEU*     4.0    17.0    -      -       +      -
    485D  MET*     3.0    17.5    +      -       +      +
    486D  LEU*     3.7     8.1    -      -       +      +
    488D  ALA*     1.3    73.7    -      -       -      +
    490D  VAL*     1.3    66.7    +      -       -      +
    492D  MET*     3.2    32.2    +      -       +      +
    493D  TYR*     3.2    21.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 490 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165D  MET*     4.1    15.5    -      -       +      -
    166D  VAL*     5.7     1.1    -      -       +      -
    275D  LEU*     4.6     5.4    -      -       +      -
    276D  TRP*     3.6    28.3    -      -       +      -
    295D  LEU*     5.7     0.7    -      -       +      -
    347D  PHE*     4.3     6.7    -      -       +      -
    350D  TYR*     4.0    18.4    -      -       +      +
    351D  PHE*     3.5    22.9    -      -       +      -
    486D  LEU*     3.0    38.4    +      -       +      +
    487D  GLY*     4.8     0.2    -      -       -      -
    489D  LEU*     1.3    74.2    -      -       -      +
    491D  ALA*     1.3    58.2    +      -       -      +
    493D  TYR      3.3     2.6    +      -       -      -
    494D  GLU*     3.0    35.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 491 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103D  ARG*     3.9    10.1    -      -       -      +
    276D  TRP*     4.4     0.6    -      -       -      -
    299D  ALA*     3.7    26.7    -      -       +      +
    302D  MET*     3.8    11.9    -      -       +      -
    303D  ASP*     4.3     2.0    -      -       -      +
    487D  GLY      3.1    19.6    +      -       -      +
    488D  ALA      3.7     3.6    -      -       -      +
    490D  VAL*     1.3    74.3    -      -       -      +
    492D  MET*     1.3    66.9    +      -       -      +
    494D  GLU*     3.2    14.5    +      -       -      +
    495D  HIS*     3.0    27.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with MET 492 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43D  LEU*     5.8     0.2    -      -       -      -
     50D  ILE*     5.2     3.1    -      -       -      -
     52D  VAL*     4.4    10.5    -      -       -      -
    302D  MET*     3.5    23.7    -      -       +      +
    315D  ALA*     4.2    14.8    -      -       -      -
    316D  PRO*     3.6    22.7    -      -       +      +
    319D  LEU*     3.8    31.0    -      -       +      -
    476D  ILE*     4.3    17.0    -      -       +      -
    488D  ALA      2.9    15.3    +      -       -      +
    489D  LEU*     3.2    26.9    +      -       +      +
    491D  ALA*     1.3    78.2    -      -       -      +
    493D  TYR*     1.3    80.6    +      -       +      +
    495D  HIS      3.3     0.5    +      -       -      -
    496D  LYS*     3.0    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 493 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319D  LEU*     4.7     9.2    -      -       +      +
    337D  MET*     3.5    34.9    -      -       +      +
    347D  PHE*     4.1    12.6    -      +       -      -
    351D  PHE*     3.3    25.1    -      +       +      -
    404D  ASP*     2.7    40.1    +      -       -      +
    406D  LEU*     3.8    22.5    -      -       +      +
    476D  ILE*     4.5     5.5    -      -       -      +
    489D  LEU*     3.2    19.6    +      -       +      -
    490D  VAL      3.3     0.2    +      -       -      -
    492D  MET*     1.3    96.8    -      -       +      +
    494D  GLU*     1.3    66.6    +      -       -      +
    496D  LYS*     3.0    28.9    +      -       +      +
    497D  ILE*     2.9    32.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 494 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99D  HIS*     3.7     7.7    +      -       +      -
    103D  ARG*     2.8    36.8    +      -       -      -
    272D  ARG      5.7     0.4    -      -       -      +
    273D  TYR*     3.5    43.1    +      -       +      -
    276D  TRP*     2.9    30.1    +      -       -      -
    350D  TYR*     4.4     7.7    +      -       +      +
    351D  PHE*     4.2     6.0    -      -       +      -
    490D  VAL*     3.0    21.1    +      -       +      +
    491D  ALA*     3.2     9.3    +      -       -      +
    493D  TYR*     1.3    77.6    -      -       -      +
    495D  HIS*     1.3    60.9    +      -       +      +
    497D  ILE*     3.4    12.9    +      -       +      +
    498D  PHE*     3.0    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 495 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83D  MET*     4.7    10.5    -      -       -      -
     84D  PHE*     4.3     2.3    -      +       -      -
     99D  HIS*     4.7     5.0    -      +       -      -
    100D  VAL*     3.8    17.7    -      -       +      +
    103D  ARG*     3.9     7.8    +      -       -      -
    302D  MET*     4.3     5.4    +      -       -      +
    303D  ASP*     2.8    39.3    +      -       -      -
    306D  PHE*     3.3    45.2    -      +       +      +
    316D  PRO*     3.7    20.0    -      -       +      -
    491D  ALA      3.0    16.5    +      -       -      +
    494D  GLU*     1.3    79.1    -      -       +      +
    496D  LYS*     1.3    61.5    +      -       -      +
    498D  PHE*     3.4     7.1    -      -       +      +
    499D  VAL*     2.8    34.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 496 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316D  PRO*     3.5    19.7    -      -       +      +
    319D  LEU*     3.8    24.8    +      -       +      +
    320D  ALA*     3.5    19.6    -      -       -      +
    323D  GLY*     5.3     2.7    -      -       -      -
    335D  HIS*     3.4    39.8    +      -       -      -
    337D  MET*     6.0     0.4    -      -       -      -
    355D  ASP*     4.6     9.5    +      -       -      +
    404D  ASP*     4.5     0.8    +      -       -      -
    492D  MET      3.0    13.8    +      -       -      +
    493D  TYR*     3.4    32.7    -      -       +      +
    495D  HIS*     1.3    74.9    -      -       -      +
    497D  ILE*     1.3    66.9    +      -       +      +
    499D  VAL*     3.0     4.7    +      -       -      +
    500D  GLN*     2.9    49.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 497 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273D  TYR*     3.8    10.8    -      -       +      +
    351D  PHE*     4.0    20.6    -      -       +      -
    354D  GLY*     3.6     9.0    -      -       -      +
    355D  ASP*     3.6    40.4    -      -       +      +
    358D  SER*     3.6    25.8    -      -       -      -
    359D  ASN*     3.1    27.9    +      -       -      +
    493D  TYR*     2.9    20.3    +      -       +      +
    494D  GLU*     3.4    10.1    -      -       -      +
    496D  LYS*     1.3    82.8    -      -       +      +
    498D  PHE*     1.3    61.6    +      -       -      +
    500D  GLN*     4.5     3.4    -      -       -      +
    501D  GLY      3.1    17.5    +      -       -      -
    508D  SER*     3.8     4.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 498 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76D  VAL*     4.9     2.7    -      -       +      -
     79D  ALA*     3.7    24.0    -      -       +      -
     80D  ARG*     3.7    22.7    -      -       +      -
     83D  MET*     3.4    36.8    -      -       +      -
     89D  ILE*     3.9    12.8    -      -       +      -
     99D  HIS*     6.3     0.9    -      -       +      -
    273D  TYR*     5.7     0.2    -      -       -      -
    306D  PHE*     3.7    28.5    -      +       -      -
    494D  GLU      3.0    15.1    +      -       -      +
    495D  HIS*     3.4    10.8    -      -       +      +
    496D  LYS      3.1     0.2    -      -       -      -
    497D  ILE*     1.3    77.9    -      -       -      +
    499D  VAL*     1.3    64.5    +      -       +      +
    501D  GLY*     3.3     2.6    +      -       -      -
    502D  ILE*     3.1    54.9    +      -       +      +
    508D  SER*     4.6     4.4    +      -       -      -
    509D  PHE*     3.5    21.5    -      +       +      -
----------------------------------------------------------
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Residues in contact with VAL 499 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76D  VAL*     4.1    20.4    -      -       +      -
    306D  PHE*     3.8    28.3    -      -       +      -
    317D  VAL*     4.0    23.8    -      -       +      +
    320D  ALA*     3.5    19.5    -      -       +      -
    321D  LEU*     4.6     2.9    -      -       +      -
    495D  HIS      2.8    20.0    +      -       -      +
    496D  LYS      3.0     6.7    +      -       -      +
    498D  PHE*     1.3    77.5    -      -       +      +
    500D  GLN*     1.3    61.6    +      -       -      +
    502D  ILE*     3.2     8.3    +      -       -      +
    503D  ILE*     3.1    37.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 500 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320D  ALA*     3.1    37.3    +      -       +      +
    323D  GLY*     3.5    22.6    -      -       -      -
    324D  ILE*     3.9    10.2    -      -       +      +
    327D  ILE*     4.6     4.4    -      -       -      +
    355D  ASP*     4.5    10.2    -      -       -      +
    359D  ASN*     3.9     9.2    +      -       -      +
    376D  PRO*     4.9     4.0    -      -       -      +
    496D  LYS*     2.9    38.1    +      -       -      +
    497D  ILE*     4.5     2.9    -      -       -      -
    499D  VAL*     1.3    76.0    -      -       -      +
    501D  GLY*     1.3    62.9    +      -       -      +
    503D  ILE*     3.3     4.6    +      -       -      +
    504D  TRP*     3.0    59.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 501 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359D  ASN*     3.7     5.1    -      -       -      +
    497D  ILE      3.1    10.5    +      -       -      -
    498D  PHE      3.3     0.9    +      -       -      -
    499D  VAL      3.2     0.2    -      -       -      -
    500D  GLN*     1.3    77.4    -      -       -      +
    502D  ILE*     1.3    62.6    +      -       -      +
    504D  TRP*     3.2     1.5    +      -       -      -
    505D  ASP      2.9    18.2    +      -       -      -
    506D  ILE*     3.1    28.8    +      -       -      +
    508D  SER*     3.4    23.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 502 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74D  ARG*     3.4    32.4    +      -       -      +
     76D  VAL*     4.1    17.3    -      -       +      -
     79D  ALA*     3.7    27.1    -      -       +      -
     82D  ARG*     5.3     4.0    -      -       -      +
     89D  ILE*     5.9     2.0    -      -       +      -
    498D  PHE*     3.1    48.6    +      -       +      +
    499D  VAL*     3.6     9.6    -      -       -      +
    501D  GLY*     1.3    77.1    -      -       -      +
    503D  ILE*     1.3    63.6    +      -       -      +
    505D  ASP*     3.1    12.2    +      -       -      +
    506D  ILE      5.2     4.9    -      -       -      +
    509D  PHE*     6.0     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 503 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3D  LEU*     3.7    20.1    -      -       +      +
     70D  LEU*     4.0    25.4    -      -       +      -
     71D  ALA*     4.7     4.5    -      -       -      -
     74D  ARG*     2.9    38.1    +      -       +      +
     76D  VAL*     4.0    16.6    -      -       +      -
    321D  LEU*     3.6    31.0    -      -       +      -
    324D  ILE*     4.1    27.4    -      -       +      -
    499D  VAL*     3.1    23.4    +      -       +      +
    500D  GLN*     3.6     7.0    -      -       -      +
    502D  ILE*     1.3    76.6    -      -       -      +
    504D  TRP*     1.3    59.7    +      -       -      +
    505D  ASP      3.1     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 504 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1D  ALA*     5.7     0.2    -      -       -      +
      3D  LEU*     3.6    22.4    +      -       +      -
    324D  ILE*     3.4    21.2    -      -       +      +
    327D  ILE*     3.9    20.2    -      -       +      -
    328D  ASN*     2.7    22.0    +      -       -      -
    359D  ASN*     3.5    27.6    -      -       +      -
    364D  THR*     4.1     4.3    -      -       -      +
    372D  HIS*     3.7    29.1    +      +       +      -
    373D  GLN      3.4     5.7    +      -       -      -
    374D  THR*     3.5    34.5    -      -       +      -
    375D  GLY*     3.5    19.7    -      -       -      -
    376D  PRO*     4.2     0.4    -      -       +      -
    500D  GLN*     3.0    43.3    +      -       +      +
    501D  GLY      3.8     3.1    -      -       -      +
    503D  ILE*     1.3    73.7    -      -       -      +
    505D  ASP*     1.3    70.8    +      -       -      +
    506D  ILE*     3.4    24.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 505 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2D  ALA*     3.8    21.3    +      -       +      +
      3D  LEU      5.1     0.7    -      -       -      +
     74D  ARG*     3.0    24.1    +      -       -      +
     91D  TYR*     3.6     1.8    +      -       -      -
    364D  THR*     3.2    23.4    +      -       +      -
    365D  LYS*     2.9    55.4    +      -       -      +
    366D  SER*     4.3     5.0    +      -       -      -
    501D  GLY      2.9     4.4    +      -       -      -
    502D  ILE*     3.1    11.3    +      -       -      +
    503D  ILE      3.1     0.2    -      -       -      -
    504D  TRP*     1.3    81.7    -      -       -      +
    506D  ILE*     1.3    60.1    +      -       -      +
----------------------------------------------------------
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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