Contacts of the helix formed by residues 17 - 50 (chain L) in PDB entry 5GJQ


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 LEU 17 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15L  LYS      3.3     5.7    -      -       -      +
     16L  LEU*     1.3    76.5    -      -       -      +
     18L  GLU*     1.3    60.0    +      -       -      +
     19L  HIS      3.4     0.4    +      -       -      -
     20L  LYS*     3.7    10.5    +      -       -      +
     21L  GLU*     3.4    18.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 18 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15L  LYS      3.9    10.4    +      -       -      +
     16L  LEU      3.1     2.0    -      -       -      -
     17L  LEU*     1.3    76.7    -      -       -      +
     19L  HIS*     1.3    55.5    +      -       -      +
     21L  GLU*     3.0     9.1    +      -       -      +
     22L  ILE*     2.4    39.2    +      -       -      +
     46M  ARG*     4.9    12.6    -      -       +      +
     50M  SER*     4.0    22.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 19 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16L  LEU      3.6    10.5    +      -       -      +
     17L  LEU      3.4     0.8    -      -       -      -
     18L  GLU*     1.3    76.7    -      -       -      +
     20L  LYS*     1.3    50.6    +      -       -      +
     22L  ILE*     3.2     8.2    +      -       -      +
     23L  ASP*     2.3    42.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 20 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16L  LEU      4.7     0.8    +      -       -      +
     17L  LEU*     3.7    11.3    +      -       -      +
     19L  HIS*     1.3    75.8    -      -       -      +
     21L  GLU*     1.3    53.0    +      -       -      +
     22L  ILE      2.7     2.3    +      -       -      -
     23L  ASP*     2.6    10.8    +      -       -      -
     24L  GLY*     2.1    41.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 21 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17L  LEU      3.4    10.9    +      -       -      +
     18L  GLU*     3.0    14.6    +      -       +      +
     20L  LYS*     1.3    74.5    -      -       -      +
     22L  ILE*     1.3    59.9    +      -       -      +
     24L  GLY*     4.2     2.9    -      -       -      +
     25L  ARG*     3.7    17.6    +      -       -      +
     50M  SER*     5.5     8.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 22 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18L  GLU      2.4    29.4    +      -       -      +
     19L  HIS*     3.3     9.0    -      -       -      +
     20L  LYS      2.7     4.1    +      -       -      -
     21L  GLU*     1.3    67.5    -      -       -      +
     23L  ASP*     1.3    58.3    +      -       -      +
     25L  ARG*     3.7     3.0    -      -       -      +
     26L  LEU*     2.8    28.4    +      -       -      +
     50M  SER*     5.1    12.9    -      -       -      -
     53M  LYS*     5.3    13.4    -      -       +      +
     57M  SER*     5.4     1.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 23 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19L  HIS*     2.3    33.9    +      -       +      +
     20L  LYS*     2.6     3.9    +      -       -      +
     22L  ILE*     1.3    66.3    -      -       -      +
     24L  GLY*     1.3    57.6    +      -       -      +
     26L  LEU*     3.5     9.2    -      -       +      -
     27L  LYS*     2.4    41.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 24 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20L  LYS*     2.1    30.9    +      -       -      +
     21L  GLU*     4.8     1.6    -      -       -      -
     23L  ASP*     1.3    66.7    -      -       -      +
     25L  ARG*     1.3    64.2    +      -       -      +
     27L  LYS*     4.3     2.7    -      -       -      +
     28L  GLU*     3.4    20.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 25 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21L  GLU*     3.7    15.1    +      -       -      +
     22L  ILE*     3.6     7.7    +      -       -      +
     23L  ASP      3.4     0.4    -      -       -      -
     24L  GLY*     1.3    73.4    -      -       -      +
     26L  LEU*     1.3    55.5    +      -       -      +
     28L  GLU*     3.9     1.8    -      -       -      +
     29L  LEU*     2.7    40.0    +      -       +      +
     54M  ILE*     5.5     3.6    -      -       +      -
     57M  SER*     3.9    21.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 26 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22L  ILE      2.8    23.0    +      -       -      +
     23L  ASP*     3.4    11.4    -      -       +      +
     25L  ARG*     1.3    70.9    -      -       -      +
     27L  LYS*     1.3    56.9    -      -       -      +
     29L  LEU*     4.1     4.7    -      -       -      -
     30L  ARG*     2.5    42.1    +      -       +      +
     57M  SER*     4.7     6.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 27 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23L  ASP*     2.4    33.8    +      -       +      +
     24L  GLY*     4.3     3.4    -      -       -      +
     26L  LEU*     1.3    67.0    -      -       -      +
     28L  GLU*     1.3    53.6    +      -       -      +
     30L  ARG*     3.7     3.3    -      -       -      +
     31L  GLU*     2.8    38.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 28 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24L  GLY      3.4    13.5    +      -       -      +
     25L  ARG*     3.4     3.0    +      -       -      +
     27L  LYS*     1.3    75.3    -      -       -      +
     29L  LEU*     1.3    54.1    +      -       -      +
     31L  GLU*     2.8     9.6    +      -       -      +
     32L  GLN*     2.6    40.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 29 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25L  ARG*     2.7    28.6    +      -       +      +
     26L  LEU*     3.5     4.5    -      -       -      +
     28L  GLU*     1.3    70.8    -      -       -      +
     30L  ARG*     1.3    63.3    +      -       -      +
     32L  GLN*     4.0     3.2    -      -       -      +
     33L  LEU*     3.2    23.9    +      -       -      +
     57M  SER*     3.9    25.6    -      -       -      +
     60M  LEU*     4.0    10.5    -      -       +      +
     61M  ARG*     4.4    17.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 30 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26L  LEU*     2.5    31.6    +      -       +      +
     27L  LYS*     4.1     3.1    -      -       -      +
     29L  LEU*     1.3    73.9    -      -       -      +
     31L  GLU*     1.3    58.2    +      -       -      +
     33L  LEU*     3.5    14.9    -      -       -      +
     34L  LYS*     4.2     5.2    +      -       -      +
     60M  LEU*     4.5     5.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 31 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27L  LYS      2.8    20.6    +      -       -      +
     28L  GLU*     2.8     7.0    +      -       -      +
     30L  ARG*     1.3    74.6    -      -       -      +
     32L  GLN*     1.3    54.8    +      -       -      +
     33L  LEU      2.6    15.8    +      -       -      -
     34L  LYS*     3.0    16.1    +      -       -      +
     35L  GLU*     3.3    11.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 32 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28L  GLU*     2.6    21.8    +      -       +      +
     29L  LEU*     4.2     4.7    -      -       -      +
     31L  GLU*     1.3    70.8    -      -       -      +
     33L  LEU*     1.3    60.9    +      -       -      +
     35L  GLU*     3.8    12.6    -      -       -      +
     36L  LEU*     3.4    22.5    +      -       -      +
     61M  ARG*     5.7     8.1    -      -       +      -
     64M  HIS*     4.7     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 33 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29L  LEU      3.2    17.7    +      -       -      +
     30L  ARG*     3.5    14.4    -      -       -      +
     31L  GLU      2.6     5.1    +      -       -      -
     32L  GLN*     1.3    76.3    -      -       -      +
     34L  LYS*     1.3    57.1    +      -       -      +
     36L  LEU*     3.9     2.1    -      -       -      +
     37L  THR*     3.0    27.4    +      -       -      -
     60M  LEU*     4.6    15.0    -      -       +      +
     61M  ARG*     5.9     0.2    -      -       -      +
     64M  HIS*     4.2    17.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 34 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30L  ARG      4.2     4.5    +      -       -      +
     31L  GLU      3.0     7.1    +      -       -      +
     33L  LEU*     1.3    73.8    -      -       -      +
     35L  GLU*     1.3    68.7    +      -       -      +
     36L  LEU      3.1     2.0    -      -       -      -
     37L  THR*     3.8     8.7    -      -       -      -
     38L  LYS*     2.8    28.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 35 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31L  GLU      3.3    11.0    +      -       -      +
     32L  GLN*     3.8    15.5    -      -       -      +
     34L  LYS*     1.3    80.5    -      -       -      +
     36L  LEU*     1.3    59.5    +      -       +      +
     38L  LYS*     3.7     9.0    +      -       -      +
     39L  GLN*     3.8    10.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 36 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32L  GLN      3.4    14.3    +      -       -      +
     33L  LEU      4.2     1.8    -      -       -      +
     34L  LYS      3.1     0.2    -      -       -      -
     35L  GLU*     1.3    77.2    -      -       -      +
     37L  THR*     1.3    64.4    +      -       -      +
     39L  GLN*     3.8    16.6    +      -       -      +
     40L  TYR*     4.0     5.4    +      -       -      +
     64M  HIS*     4.9    12.1    -      -       +      +
     67M  GLN      4.9     6.3    -      -       -      +
     68M  ALA*     4.9    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 37 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33L  LEU      3.0    19.9    +      -       -      -
     34L  LYS*     3.0     9.8    +      -       -      -
     36L  LEU*     1.3    76.3    -      -       -      +
     38L  LYS*     1.3    63.8    +      -       -      +
     40L  TYR*     3.3    19.9    +      -       -      +
     41L  GLU*     3.6     5.0    +      -       -      +
     64M  HIS*     6.2     0.2    -      -       -      -
     67M  GLN*     5.4    14.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 38 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34L  LYS*     2.8    17.3    +      -       +      +
     35L  GLU*     3.9     5.6    -      -       -      +
     37L  THR*     1.3    73.3    -      -       -      +
     39L  GLN*     1.3    66.0    +      -       -      +
     40L  TYR      3.0     2.0    -      -       -      -
     41L  GLU*     2.8    21.5    +      -       -      +
     42L  LYS*     3.1    13.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 39 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35L  GLU      3.8     8.9    +      -       -      +
     36L  LEU*     3.8    13.4    +      -       -      +
     37L  THR      3.4     0.2    -      -       -      -
     38L  LYS*     1.3    76.9    -      -       -      +
     40L  TYR*     1.3    50.6    +      -       -      +
     42L  LYS*     4.1     5.3    -      -       -      +
     43L  SER*     2.6    39.0    +      -       -      -
     72M  LYS*     5.8     7.0    -      -       -      -
     75M  GLU*     2.9     7.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 40 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36L  LEU      4.0     3.2    +      -       -      +
     37L  THR*     3.3    14.8    +      -       -      +
     38L  LYS      3.0     0.6    -      -       -      -
     39L  GLN*     1.3    78.0    -      -       -      +
     41L  GLU*     1.3    52.3    +      -       -      +
     43L  SER*     3.2     0.3    +      -       -      -
     44L  GLU*     2.6    42.7    +      -       +      +
     67M  GLN      4.6     8.5    -      -       -      +
     71M  ASP*     3.2    27.8    -      -       +      +
     75M  GLU*     3.1    10.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 41 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37L  THR      3.6     3.7    +      -       -      +
     38L  LYS*     2.8    16.6    +      -       -      +
     40L  TYR*     1.3    80.2    -      -       -      +
     42L  LYS*     1.3    57.5    +      -       -      +
     44L  GLU*     3.4     4.9    -      -       -      +
     45L  ASN*     2.9    30.0    +      -       -      +
     48L  LYS*     5.1     2.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 42 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38L  LYS      3.1    11.0    +      -       -      +
     39L  GLN*     4.1     5.4    -      -       -      +
     41L  GLU*     1.3    75.9    -      -       -      +
     43L  SER*     1.3    64.5    +      -       -      +
     45L  ASN*     3.1    18.1    +      -       -      +
     46L  ASP*     3.1    11.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 43 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39L  GLN      2.6    10.9    +      -       -      -
     40L  TYR      3.2     1.7    +      -       -      -
     42L  LYS*     1.3    78.6    -      -       -      +
     44L  GLU*     1.3    55.1    +      -       -      +
     46L  ASP*     2.9     5.1    +      -       -      -
     47L  LEU*     2.6    32.3    +      -       -      +
     75M  GLU*     2.0    55.3    +      -       -      +
     79M  LYS*     2.7    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 44 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40L  TYR*     2.6    28.0    +      -       +      +
     41L  GLU*     3.4     5.6    -      -       -      +
     43L  SER*     1.3    73.9    +      -       -      +
     45L  ASN*     1.3    53.7    +      -       -      +
     47L  LEU*     2.9    11.3    +      -       +      +
     48L  LYS*     2.5    60.5    +      -       -      +
     71M  ASP*     5.8     2.0    -      -       +      -
     75M  GLU*     5.1     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 45 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41L  GLU      2.9    12.6    +      -       -      +
     42L  LYS*     3.1    12.6    -      -       -      +
     44L  GLU*     1.3    74.0    -      -       -      +
     46L  ASP*     1.3    54.2    +      -       -      +
     48L  LYS*     3.7    12.3    -      -       -      +
     49L  ALA*     2.7    39.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 46 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42L  LYS      3.1     7.0    +      -       -      +
     43L  SER*     2.9     3.9    +      -       -      +
     45L  ASN*     1.3    81.6    -      -       -      +
     47L  LEU*     1.4    57.0    +      -       -      +
     49L  ALA*     3.5     6.9    +      -       -      +
     50L  LEU*     3.5    20.8    +      -       -      +
     79M  LYS*     3.1    32.5    -      -       -      +
    138M  GLY      6.5     0.9    -      -       -      -
    139M  LEU*     4.6    16.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 47 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43L  SER      2.6    15.6    +      -       -      +
     44L  GLU*     2.9    16.4    +      -       -      +
     46L  ASP*     1.4    64.4    -      -       -      +
     48L  LYS*     1.3    67.4    +      -       +      +
     50L  LEU*     3.0    29.9    -      -       -      +
     51L  GLN*     5.4     0.5    -      -       -      +
     74M  LYS*     4.6    18.2    -      -       +      +
     75M  GLU*     4.7     8.7    -      -       -      +
     78M  GLU*     3.8    19.5    -      -       +      +
     79M  LYS*     3.6     7.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 48 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41L  GLU*     5.1     2.8    +      -       -      +
     44L  GLU*     2.5    47.3    +      -       +      +
     45L  ASN*     3.7     8.9    -      -       -      +
     47L  LEU*     1.3    69.0    -      -       +      +
     49L  ALA*     1.3    55.4    +      -       -      +
     50L  LEU      2.6    16.6    +      -       -      -
     51L  GLN*     3.3    27.7    +      -       -      +
     52L  SER*     4.1     0.9    +      -       -      -
     78M  GLU*     5.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 49 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45L  ASN      2.7    23.4    +      -       -      +
     46L  ASP*     3.7     7.6    -      -       -      +
     48L  LYS*     1.3    72.4    -      -       -      +
     50L  LEU*     1.3    53.3    +      -       -      +
     52L  SER*     1.7    49.7    +      -       -      +
    136M  VAL*     3.9    18.8    -      -       +      -
    138M  GLY*     5.3     5.4    -      -       -      -
    159M  LEU*     3.4     7.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 50 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46L  ASP      3.5    11.0    +      -       -      +
     47L  LEU*     3.0    17.8    +      -       -      +
     48L  LYS      2.6     5.7    +      -       -      -
     49L  ALA*     1.3    69.0    -      -       -      +
     51L  GLN*     1.3    61.9    -      -       +      +
     52L  SER      3.0    12.0    +      -       -      +
     78M  GLU*     3.2    37.9    -      -       +      +
     79M  LYS*     3.6    12.6    -      -       +      +
     82M  VAL*     3.1    59.3    -      -       +      +
     83M  ASN*     5.1     0.9    -      -       -      +
    139M  LEU*     5.1     7.0    -      -       +      -
    157M  SER*     4.3     7.1    +      -       -      -
    159M  LEU*     4.0    20.9    -      -       +      +
    161M  LEU*     5.0     2.7    -      -       +      -
----------------------------------------------------------
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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