Contacts of the helix formed by residues 14 - 39 (chain A) in PDB entry 3J2I


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 GLU 14 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  GLU      4.2     3.3    -      -       -      +
     10A  GLN*     3.5    18.4    -      -       -      +
     11A  THR*     3.0    28.6    +      -       -      +
     12A  ILE      4.2     1.6    -      -       -      -
     13A  ALA*     1.3    83.8    -      -       +      +
     15A  ASP*     1.3    66.3    +      -       -      +
     16A  LEU*     4.4     5.1    -      -       +      +
     17A  VAL*     3.0    29.4    +      -       +      +
     18A  VAL*     3.2    13.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 15 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  ALA      4.4     5.5    -      -       -      +
     14A  GLU*     1.3    71.7    -      -       -      +
     16A  LEU*     1.3    57.5    +      -       -      +
     18A  VAL*     3.2    11.2    +      -       -      +
     19A  THR*     2.9    32.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 16 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  GLU*     3.2     5.2    -      -       +      +
     15A  ASP*     1.3    79.1    -      -       -      +
     17A  VAL*     1.3    59.1    +      -       +      +
     19A  THR*     3.4    12.5    +      -       +      -
     20A  LYS*     3.0    56.4    +      -       +      +
     64A  PHE*     4.5    13.9    -      -       +      -
     67A  GLU*     5.9     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 17 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  GLN*     4.1    10.5    -      -       +      +
     11A  THR*     3.3    35.4    -      -       -      +
     12A  ILE*     4.0     1.6    -      -       +      -
     14A  GLU*     3.0    23.6    +      -       +      +
     16A  LEU*     1.3    76.3    -      -       +      +
     18A  VAL*     1.3    65.4    +      -       -      +
     20A  LYS*     3.2     9.9    +      -       +      +
     21A  TYR*     3.0    33.8    +      -       +      -
    117A  PHE*     3.4    46.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 18 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  ILE*     3.4    39.3    -      -       +      +
     14A  GLU      3.2     8.0    +      -       -      +
     15A  ASP*     3.6    10.3    -      -       -      +
     17A  VAL*     1.3    75.4    -      -       -      +
     19A  THR*     1.3    56.6    +      -       -      +
     21A  TYR*     3.2     4.5    +      -       -      +
     22A  LYS*     2.9    56.1    +      -       +      +
    324A  LEU*     4.1     8.7    -      -       +      -
    326A  MET*     3.9    19.7    -      -       +      -
    331A  MET*     3.8    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 19 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ASP*     2.9    15.4    +      -       -      +
     16A  LEU*     3.5    17.4    -      -       +      +
     17A  VAL      3.2     0.2    -      -       -      -
     18A  VAL*     1.3    76.7    -      -       -      +
     20A  LYS*     1.3    57.5    +      -       -      +
     22A  LYS*     3.2    10.1    +      -       -      +
     23A  MET*     2.8    58.6    +      -       +      +
     64A  PHE*     4.7     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 20 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  GLN*     4.8     5.5    +      -       -      -
     16A  LEU*     3.0    48.4    +      -       +      +
     17A  VAL*     3.2     7.5    +      -       -      +
     19A  THR*     1.3    75.2    -      -       -      +
     21A  TYR*     1.3    63.2    +      -       -      +
     23A  MET*     3.5     2.6    +      -       -      +
     24A  GLY*     3.0    18.7    +      -       -      -
     64A  PHE*     3.8    19.3    -      -       +      -
     67A  GLU*     5.5     1.0    +      -       -      -
     70A  MET*     3.7    24.7    -      -       -      +
    114A  VAL*     3.8    25.8    -      -       +      +
    115A  ASP*     2.8    27.0    +      -       +      -
    117A  PHE*     3.9    34.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 21 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  ILE*     3.6    30.5    -      -       +      -
     17A  VAL*     3.0    24.6    +      -       +      -
     18A  VAL      3.5     5.8    -      -       -      +
     20A  LYS*     1.3    76.4    -      -       -      +
     22A  LYS*     1.3    57.4    +      -       -      +
     24A  GLY*     3.3     1.2    +      -       -      -
     25A  GLY      2.8    24.9    +      -       -      -
    117A  PHE*     3.5    31.9    -      +       +      +
    118A  ILE      3.1    42.3    +      -       -      -
    119A  ALA*     4.2     1.5    -      -       -      +
    190A  LEU*     4.1    16.0    +      -       +      +
    191A  LYS*     4.3     7.4    -      -       -      -
    192A  GLN      4.6     0.2    +      -       -      -
    223A  VAL*     3.9    28.4    -      -       +      +
    324A  LEU*     4.1    13.0    -      -       +      -
    333A  ILE*     3.4    27.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 22 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  VAL*     2.9    35.9    +      -       +      +
     19A  THR*     3.7     8.7    -      -       -      +
     21A  TYR*     1.3    73.4    -      -       +      +
     23A  MET*     1.3    58.8    +      -       +      +
     25A  GLY*     3.2     1.4    +      -       -      +
     26A  ASP*     2.8    39.5    +      -       -      +
    331A  MET*     3.3    35.9    -      -       +      -
    333A  ILE*     4.2    21.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 23 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  THR*     2.8    41.3    +      -       +      +
     20A  LYS*     4.1     3.8    -      -       -      +
     22A  LYS*     1.3    75.1    -      -       +      +
     24A  GLY*     1.3    62.2    +      -       -      +
     26A  ASP*     3.4    12.8    +      -       -      +
     27A  ILE*     3.2    28.1    +      -       -      +
     63A  ILE*     3.8    43.7    -      -       +      -
     64A  PHE*     3.7    23.6    -      -       +      +
    114A  VAL*     4.6     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 24 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  LYS      3.0    12.8    +      -       -      -
     21A  TYR      3.8     2.7    -      -       -      -
     23A  MET*     1.3    75.9    -      -       -      +
     25A  GLY*     1.3    57.6    +      -       -      +
     27A  ILE*     3.3     4.2    +      -       -      +
     28A  ALA*     2.9    28.9    +      -       -      +
    112A  VAL*     3.7    17.3    -      -       -      +
    114A  VAL*     3.8    20.3    -      -       -      +
    117A  PHE      5.6     1.6    -      -       -      -
    119A  ALA*     3.7     9.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 25 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  TYR      2.8    14.5    +      -       -      -
     22A  LYS      3.2     3.6    +      -       -      -
     24A  GLY*     1.3    74.1    -      -       -      +
     26A  ASP*     1.3    58.8    +      -       -      +
     28A  ALA*     3.3     1.4    +      -       -      +
     29A  ASN*     2.8    35.7    +      -       -      +
    119A  ALA*     3.4    15.8    -      -       -      +
    333A  ILE*     3.5    22.9    -      -       -      -
    334A  THR*     3.7     3.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 26 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  LYS*     2.8    28.8    +      -       -      +
     23A  MET*     3.6    11.8    -      -       -      +
     25A  GLY*     1.3    73.0    -      -       -      +
     27A  ILE*     1.3    59.0    +      -       +      +
     29A  ASN*     3.5     9.6    +      -       -      +
     30A  ARG*     3.0    48.7    +      -       -      +
    333A  ILE      5.2     1.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 27 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  MET      3.2    16.3    +      -       -      +
     24A  GLY*     3.6     6.7    -      -       -      +
     25A  GLY      3.2     0.2    -      -       -      -
     26A  ASP*     1.3    74.1    -      -       +      +
     28A  ALA*     1.3    65.5    +      -       -      +
     30A  ARG*     3.2    16.9    +      -       -      +
     31A  VAL*     2.9    36.9    +      -       +      +
     56A  ILE*     4.6     7.0    -      -       -      -
     59A  GLU*     3.6    51.6    -      -       +      +
     60A  THR*     3.9    10.5    -      -       +      +
     63A  ILE*     3.8    25.4    -      -       +      -
    112A  VAL*     4.0    20.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 28 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  GLY      2.9    16.0    +      -       -      +
     25A  GLY      3.7     4.7    -      -       -      +
     27A  ILE*     1.3    75.5    -      -       -      +
     29A  ASN*     1.3    58.3    +      -       -      +
     31A  VAL*     3.5     0.8    +      -       -      -
     32A  LEU*     2.9    32.7    +      -       -      +
    110A  LEU*     3.9    17.5    -      -       +      +
    112A  VAL*     3.8    19.0    -      -       +      +
    119A  ALA      3.9    15.5    -      -       -      +
    121A  VAL*     4.0     7.0    -      -       +      -
    334A  THR*     4.0    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 29 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  GLY      2.8    17.7    +      -       -      +
     26A  ASP*     3.7    10.1    +      -       -      +
     28A  ALA*     1.3    78.3    -      -       -      +
     30A  ARG*     1.3    58.1    +      -       -      +
     32A  LEU*     3.8     2.1    -      -       -      +
     33A  ARG*     3.0    57.1    +      -       -      +
    121A  VAL*     4.2     2.6    -      -       -      +
    333A  ILE      3.6    16.6    +      -       -      -
    334A  THR*     3.3    11.5    -      -       -      +
    335A  SER*     2.9    32.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 30 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  ASP*     3.0    35.9    +      -       -      +
     27A  ILE*     3.6    20.0    -      -       -      +
     29A  ASN*     1.3    74.8    -      -       -      +
     31A  VAL*     1.3    67.8    +      -       -      +
     33A  ARG*     3.3     6.6    +      -       -      +
     34A  SER*     2.9    23.5    +      -       -      -
     55A  MET*     5.6     2.9    -      -       +      -
     59A  GLU*     3.0    37.9    +      -       -      +
     62A  LYS*     5.0     7.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  ILE*     2.9    29.4    +      -       +      +
     28A  ALA*     4.0     3.6    -      -       -      +
     30A  ARG*     1.3    76.8    -      -       -      +
     32A  LEU*     1.3    63.7    +      -       -      +
     34A  SER*     3.1     7.6    +      -       -      -
     35A  LEU*     3.0    24.6    +      -       +      +
     52A  GLY*     3.8    30.3    -      -       -      +
     55A  MET*     4.0    18.2    -      -       +      -
     56A  ILE*     4.2    12.3    -      -       +      +
     59A  GLU*     4.0    23.1    -      -       -      +
    110A  LEU*     3.9    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 32 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  ALA      2.9    18.8    +      -       -      +
     29A  ASN*     3.8     3.1    -      -       -      +
     31A  VAL*     1.3    76.4    -      -       -      +
     33A  ARG*     1.3    60.6    +      -       -      +
     35A  LEU*     3.1     5.9    +      -       -      +
     36A  VAL*     2.9    40.4    +      -       +      +
    108A  ILE*     3.7    36.8    -      -       +      +
    110A  LEU*     4.1    10.3    -      -       +      +
    121A  VAL*     3.7    34.3    -      -       +      -
    123A  HIS*     3.7    31.0    -      -       +      +
    335A  SER      4.0     3.8    -      -       -      +
    336A  GLY*     3.8    14.4    -      -       -      -
    337A  PRO*     4.3     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  ASN*     3.0    48.4    +      -       -      +
     30A  ARG*     3.9     5.6    -      -       -      +
     31A  VAL      3.3     0.2    -      -       -      -
     32A  LEU*     1.3    78.9    -      -       -      +
     34A  SER*     1.3    63.6    +      -       -      +
     36A  VAL*     3.4     7.6    +      -       -      +
     37A  GLU*     3.0    25.1    +      -       -      +
    335A  SER*     2.9    42.0    +      -       -      -
    336A  GLY*     3.5    13.1    +      -       -      -
    337A  PRO*     3.6    33.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30A  ARG*     2.9    14.3    +      -       -      -
     31A  VAL      3.4     8.5    -      -       -      -
     33A  ARG*     1.3    76.4    -      -       -      +
     35A  LEU*     1.3    59.4    +      -       -      +
     37A  GLU*     3.4    10.1    +      -       -      +
     38A  ALA*     3.0    28.5    +      -       -      +
     51A  LYS*     3.7    11.3    +      -       -      -
     55A  MET*     3.6    33.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  VAL*     3.0    15.6    +      -       +      +
     32A  LEU*     3.1     6.7    +      -       -      +
     34A  SER*     1.3    73.2    -      -       -      +
     36A  VAL*     1.3    65.0    +      -       -      +
     38A  ALA*     3.2     5.0    +      -       -      +
     39A  SER*     2.9    27.4    +      -       -      -
     48A  LEU*     3.6    30.9    -      -       +      +
     51A  LYS*     4.1    21.5    -      -       +      -
     52A  GLY*     3.8    21.1    -      -       -      +
     55A  MET*     5.1     2.0    -      -       -      -
     78A  THR*     3.7    29.4    -      -       +      -
     80A  ILE*     5.2     0.9    -      -       +      -
    108A  ILE*     3.8    19.3    -      -       +      -
    110A  LEU*     3.9    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 36 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  LEU*     2.9    30.2    +      -       +      +
     33A  ARG*     3.7    10.5    -      -       -      +
     35A  LEU*     1.3    76.6    -      -       -      +
     37A  GLU*     1.3    62.8    +      -       -      +
     39A  SER*     3.1    24.3    +      -       -      +
    108A  ILE*     4.3     1.3    -      -       +      -
    123A  HIS*     3.9    27.4    -      -       +      +
    125A  PHE*     3.9    36.1    -      -       +      -
    337A  PRO*     4.8    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  ARG      3.0    17.2    +      -       -      +
     34A  SER*     3.7     9.0    -      -       -      +
     36A  VAL*     1.3    77.7    -      -       -      +
     38A  ALA*     1.3    60.2    +      -       -      +
     39A  SER      3.4     6.1    +      -       -      +
     40A  SER*     5.5     1.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  SER      3.0    17.3    +      -       -      +
     35A  LEU*     3.2     7.1    +      -       -      +
     37A  GLU*     1.3    74.1    -      -       -      +
     39A  SER*     1.3    63.1    +      -       -      +
     40A  SER*     3.4     5.6    +      -       -      -
     43A  VAL*     3.5    21.1    -      -       -      +
     48A  LEU*     3.7    16.4    -      -       +      -
     51A  LYS*     4.6    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  LEU      2.9    13.8    +      -       -      -
     36A  VAL      3.1    16.2    +      -       -      +
     37A  GLU      3.9     4.5    -      -       -      +
     38A  ALA*     1.3    76.1    -      -       -      +
     40A  SER*     1.3    62.7    +      -       -      +
     48A  LEU*     3.6    16.7    -      -       -      +
    100A  LEU*     3.8    16.5    -      -       -      +
    106A  VAL*     5.1     0.9    -      -       -      +
    108A  ILE*     4.2     3.6    -      -       -      +
    125A  PHE*     3.4    32.9    -      -       -      -
    127A  VAL*     5.0     3.1    -      -       -      +
    128A  ASP*     4.1     5.7    +      -       -      +
----------------------------------------------------------
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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