Contacts of the helix formed by residues 24 - 51 (chain B) in PDB entry 4NFT


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 SER 24 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23B  ILE*     1.3    77.3    -      -       -      +
     25B  SER*     1.3    64.2    +      -       -      +
     26B  LYS*     3.3     5.3    +      -       -      +
     27B  ALA*     3.1    21.0    +      -       -      +
     28B  MET*     3.1    18.0    +      -       -      +
    160B  ARG*     3.9    34.0    -      -       -      +
    161B  ILE      2.9    14.3    +      -       -      -
    162B  THR*     4.3     6.7    -      -       -      -
    163B  PRO*     3.6    10.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 25 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  TYR*     5.8     2.7    -      -       -      -
     23B  ILE      3.7     0.6    +      -       -      -
     24B  SER*     1.3    73.6    -      -       -      +
     26B  LYS*     1.3    62.5    +      -       -      +
     28B  MET*     3.5     7.8    +      -       -      +
     29B  GLY*     3.3    17.3    +      -       -      -
    160B  ARG*     5.5     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 26 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24B  SER*     3.2     5.4    +      -       -      +
     25B  SER*     1.3    78.3    -      -       -      +
     27B  ALA*     1.3    65.7    +      -       -      +
     29B  GLY*     3.4     2.9    +      -       -      +
     30B  ILE*     3.3    25.5    +      -       +      +
    163B  PRO*     3.7    23.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 27 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23B  ILE*     3.6    14.6    -      -       +      -
     24B  SER*     3.1    16.0    +      -       -      +
     26B  LYS*     1.3    76.4    -      -       -      +
     28B  MET*     1.3    57.9    +      -       -      +
     30B  ILE*     3.1     4.7    +      -       -      +
     31B  MET*     2.9    30.8    +      -       -      +
    161B  ILE*     3.6    18.6    -      -       +      +
    162B  THR      3.8    12.1    -      -       -      +
    163B  PRO*     3.8     4.2    -      -       -      +
    166B  LEU*     3.5    22.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 28 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7B  SER*     3.3    45.3    -      -       -      +
     10B  VAL*     3.7    34.8    -      -       +      -
     11B  TYR*     3.4    43.3    -      -       +      +
     23B  ILE*     3.9    15.9    -      -       +      +
     24B  SER      3.1    16.1    +      -       -      +
     25B  SER*     3.7     8.5    -      -       -      +
     26B  LYS      3.2     0.2    -      -       -      -
     27B  ALA*     1.3    77.6    -      -       -      +
     29B  GLY*     1.3    57.5    +      -       -      +
     31B  MET*     3.3     4.1    +      -       -      +
     32B  ASN*     2.8    27.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 29 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7B  SER*     6.1     0.2    -      -       -      -
     25B  SER      3.3    11.7    +      -       -      -
     26B  LYS      3.4     4.2    +      -       -      -
     27B  ALA      3.3     0.4    -      -       -      -
     28B  MET*     1.3    78.9    -      -       -      +
     30B  ILE*     1.3    57.4    +      -       -      +
     32B  ASN*     3.3     7.6    +      -       -      +
     33B  SER*     3.0    30.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 30 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  LYS      3.3    14.8    +      -       -      +
     27B  ALA      3.1     7.3    +      -       -      +
     29B  GLY*     1.3    78.0    -      -       -      +
     31B  MET*     1.3    58.9    +      -       -      +
     33B  SER*     3.2     9.1    +      -       -      -
     34B  PHE*     3.0    27.7    +      -       +      +
    163B  PRO*     4.0    28.5    -      -       +      +
    166B  LEU*     3.6    22.7    -      -       +      -
    167B  GLN*     6.2     0.7    -      -       +      +
    170B  ILE*     5.9     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 31 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10B  VAL*     4.3    13.7    -      -       +      -
     23B  ILE*     4.0    18.8    -      -       +      -
     27B  ALA      2.9    17.2    +      -       -      +
     28B  MET*     3.4    11.2    -      -       -      +
     30B  ILE*     1.3    78.0    -      -       -      +
     32B  ASN*     1.3    55.8    +      -       -      +
     34B  PHE*     3.3    16.6    +      -       +      +
     35B  VAL*     3.0    34.3    +      -       +      +
    142B  THR*     3.8    35.4    -      -       +      +
    145B  VAL*     3.7    28.5    -      -       +      -
    146B  LEU*     4.0    17.0    -      -       +      -
    166B  LEU*     4.0    15.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 32 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3B  LYS*     5.0     7.9    -      -       -      +
      4B  GLU      3.1    20.0    +      -       -      +
      5B  SER*     3.6     2.9    -      -       -      +
      6B  TYR*     2.7    37.5    +      -       -      +
      7B  SER*     3.5    15.9    +      -       -      +
     10B  VAL*     5.4     2.7    -      -       -      -
     28B  MET*     2.8    21.0    +      -       +      +
     29B  GLY*     3.7     9.0    -      -       -      +
     30B  ILE      3.3     0.2    -      -       -      -
     31B  MET*     1.3    70.6    -      -       -      +
     33B  SER*     1.3    64.7    +      -       -      +
     35B  VAL*     3.6     5.6    +      -       -      +
     36B  ASN*     3.0    34.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 33 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3B  LYS*     3.3    27.1    -      -       -      +
     29B  GLY      3.0    14.4    +      -       -      -
     30B  ILE*     3.5    10.8    -      -       -      -
     32B  ASN*     1.3    75.9    -      -       -      +
     34B  PHE*     1.3    58.3    +      -       -      +
     36B  ASN*     3.3     2.1    +      -       -      +
     37B  ASP*     2.8    42.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 34 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30B  ILE*     3.0    15.1    +      -       +      +
     31B  MET*     3.4    25.1    -      -       +      +
     33B  SER*     1.3    74.7    -      -       -      +
     35B  VAL*     1.3    74.5    +      -       +      +
     37B  ASP*     3.3     4.3    +      -       -      +
     38B  ILE*     3.0    35.2    +      -       +      +
    141B  LEU*     4.1    34.1    -      -       +      -
    142B  THR*     4.5     5.2    -      -       -      -
    145B  VAL*     4.1    25.1    -      -       +      -
    170B  ILE*     5.9     2.0    -      -       +      -
    176B  LEU*     5.4     1.1    -      -       +      -
    179B  LEU*     4.1    18.4    -      -       +      -
    180B  ILE*     3.6    34.8    -      -       +      -
    183B  THR*     6.5     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 35 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6B  TYR*     3.5    32.3    -      -       +      -
     10B  VAL*     4.5    11.7    -      -       +      -
     31B  MET*     3.0    18.3    +      -       +      +
     32B  ASN*     3.9     5.6    -      -       -      +
     34B  PHE*     1.3    83.2    -      -       +      +
     36B  ASN*     1.3    61.9    +      -       -      +
     38B  ILE*     4.2     1.3    -      -       -      +
     39B  PHE*     3.1    23.1    +      -       +      +
    107B  PHE*     3.9    23.8    -      -       +      -
    138B  LEU*     4.0    17.3    -      -       +      +
    142B  THR*     3.6    24.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 36 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1B  MET*     3.4    25.9    -      -       +      +
      3B  LYS*     3.5    25.8    -      -       +      +
      4B  GLU*     2.9    45.8    +      -       -      +
      6B  TYR*     4.0    11.5    -      -       -      -
     32B  ASN*     3.0    28.7    +      -       -      +
     33B  SER      3.7     4.0    -      -       -      +
     35B  VAL*     1.3    78.2    -      -       -      +
     37B  ASP*     1.3    59.6    +      -       -      +
     39B  PHE*     3.8     3.9    -      -       -      +
     40B  GLU*     2.9    24.3    +      -       -      +
    115B  HIS*     3.7     9.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 37 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1B  MET*     5.9     0.2    -      -       -      +
      3B  LYS*     2.8    26.9    +      -       -      -
     33B  SER*     2.8    26.0    +      -       -      +
     34B  PHE*     4.0     3.9    -      -       -      +
     36B  ASN*     1.3    73.7    -      -       -      +
     38B  ILE*     1.3    67.1    +      -       -      +
     40B  GLU*     3.4    17.5    +      -       -      +
     41B  ARG*     3.3    27.0    +      -       -      +
    183B  THR*     3.7    21.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 38 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  PHE*     3.0    25.8    +      -       +      +
     35B  VAL*     4.2     3.1    -      -       -      +
     37B  ASP*     1.3    78.2    -      -       -      +
     39B  PHE*     1.3    59.7    +      -       -      +
     41B  ARG*     3.1    12.3    +      -       +      +
     42B  ILE*     2.9    40.4    +      -       +      +
     70B  LEU*     5.2     4.0    -      -       +      -
     71B  LEU*     4.1    16.2    -      -       +      -
    138B  LEU*     3.9    18.4    -      -       +      -
    141B  LEU*     3.9    24.7    -      -       +      -
    179B  LEU*     3.9    33.2    -      -       +      -
    183B  THR*     4.3    12.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 39 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1B  MET*     5.3     0.4    -      -       -      -
      6B  TYR*     4.7     4.9    -      +       -      -
     35B  VAL*     3.1    19.0    +      -       +      +
     36B  ASN*     3.8     3.6    -      -       -      +
     38B  ILE*     1.3    80.8    -      -       -      +
     40B  GLU*     1.3    60.0    +      -       -      +
     42B  ILE*     4.4    10.5    -      -       +      +
     43B  ALA*     2.8    43.6    +      -       +      +
     63B  ILE*     6.1     0.2    -      -       +      -
    112B  ILE*     4.2    12.1    -      -       +      -
    115B  HIS*     3.3    52.5    -      +       +      -
    116B  LEU*     3.7    33.9    -      -       +      -
    134B  SER*     4.1    22.4    -      -       -      -
    138B  LEU*     3.7    27.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 40 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1B  MET*     3.5    52.9    +      -       +      +
     36B  ASN      2.9    18.0    +      -       -      +
     37B  ASP*     3.7    19.3    -      -       -      +
     38B  ILE      3.3     0.4    -      -       -      -
     39B  PHE*     1.3    76.0    -      -       -      +
     41B  ARG*     1.3    59.8    +      -       +      +
     43B  ALA*     4.2     2.6    -      -       -      +
     44B  GLY*     2.9    25.8    +      -       -      -
    119B  ARG*     4.6     9.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 41 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  TYR*     4.9     8.2    +      -       -      -
     37B  ASP      3.3     6.2    +      -       -      +
     38B  ILE*     3.1    14.1    +      -       +      +
     40B  GLU*     1.3    79.8    -      -       +      +
     42B  ILE*     1.3    64.3    +      -       -      +
     44B  GLY*     5.0     0.4    -      -       -      -
     45B  GLU*     3.0    21.0    +      -       -      +
     70B  LEU*     3.4    51.9    +      -       +      +
    179B  LEU*     4.2     6.9    +      -       -      +
    182B  ALA*     3.5    31.3    +      -       -      +
    183B  THR*     2.6    62.2    +      -       -      +
    185B  ALA      5.2     3.8    +      -       -      -
    186B  GLY*     5.7     4.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 42 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  ILE*     2.9    42.3    +      -       +      +
     39B  PHE*     4.0    13.7    -      -       +      +
     41B  ARG*     1.3    73.3    -      -       -      +
     43B  ALA*     1.3    62.2    +      -       -      +
     45B  GLU      3.5     0.2    +      -       -      -
     46B  ALA*     2.8    28.6    +      -       -      +
     63B  ILE*     4.1    29.8    -      -       +      -
     66B  ALA*     3.7    10.7    -      -       +      +
     67B  VAL*     3.9    24.0    -      -       +      -
     70B  LEU*     3.7    19.5    -      -       +      -
     71B  LEU*     5.3     2.9    -      -       +      -
    134B  SER*     5.5     1.3    -      -       -      +
    137B  ILE*     4.2    17.0    -      -       +      -
    138B  LEU*     5.2     3.6    -      -       +      -
    141B  LEU*     5.2     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 43 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39B  PHE*     2.8    30.5    +      -       +      +
     40B  GLU*     4.2     2.0    -      -       -      +
     42B  ILE*     1.3    72.8    -      -       -      +
     44B  GLY*     1.3    60.2    +      -       -      +
     46B  ALA*     3.7     5.7    -      -       -      +
     47B  SER*     2.8    33.1    +      -       -      -
     58B  ILE*     5.0     1.9    -      -       -      +
    116B  LEU*     4.0    22.0    -      -       +      -
    119B  ARG*     3.9    29.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 44 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  GLU      2.9    20.1    +      -       -      -
     41B  ARG*     3.9     1.1    -      -       -      -
     42B  ILE      3.3     0.2    -      -       -      -
     43B  ALA*     1.3    78.9    -      -       -      +
     45B  GLU*     1.3    60.9    +      -       -      +
     47B  SER*     3.4     5.5    +      -       -      -
     48B  ARG*     3.3    19.4    +      -       -      +
    119B  ARG*     5.2     4.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 45 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  ARG*     2.9    31.6    +      -       -      -
     49A  LEU*     4.5     0.2    -      -       -      +
     52A  TYR*     2.5    43.0    +      -       +      +
     41B  ARG      3.0    17.5    +      -       -      +
     44B  GLY*     1.3    73.2    -      -       -      +
     46B  ALA*     1.3    66.1    +      -       -      +
     47B  SER      3.3     0.2    +      -       -      -
     48B  ARG*     3.4     6.2    +      -       -      +
     49B  LEU*     3.2    49.7    +      -       +      +
     66B  ALA*     3.9    20.4    -      -       +      -
     69B  LEU*     4.0    14.0    -      -       +      +
     70B  LEU*     4.2     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 46 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  ILE      2.8    23.8    +      -       -      +
     43B  ALA*     3.7     5.2    -      -       -      +
     45B  GLU*     1.3    74.1    -      -       -      +
     47B  SER*     1.3    61.6    +      -       -      +
     49B  LEU*     3.5     1.5    +      -       -      -
     50B  ALA*     3.2    21.5    +      -       -      +
     58B  ILE*     3.9    12.4    -      -       +      +
     62B  GLU*     3.8    27.5    -      -       -      +
     63B  ILE*     3.6    29.8    -      -       +      -
     66B  ALA*     4.0     1.1    -      -       +      +
    116B  LEU*     5.6     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 47 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  ALA      2.8    16.1    +      -       -      -
     44B  GLY*     3.7     6.3    -      -       -      -
     45B  GLU      3.2     0.2    -      -       -      -
     46B  ALA*     1.3    76.0    -      -       -      +
     48B  ARG*     1.3    64.3    +      -       -      +
     50B  ALA*     3.3    14.7    +      -       -      +
     51B  HIS*     3.9     5.2    +      -       -      +
     58B  ILE*     4.0    19.2    -      -       -      +
    119B  ARG*     3.6    22.9    +      -       -      -
    120B  THR*     3.9    10.4    +      -       -      -
    121B  THR*     3.9    17.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 48 (chain B). Click here for Legend to table.
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                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  ARG*     2.9    56.2    +      -       -      +
     44B  GLY      3.3     9.8    +      -       -      +
     45B  GLU*     3.4    12.5    +      -       -      +
     47B  SER*     1.3    79.8    -      -       -      +
     49B  LEU*     1.3    57.4    +      -       -      +
     50B  ALA      3.4     0.3    +      -       -      -
     51B  HIS*     2.9    37.2    +      -       +      +
     52B  TYR*     4.2     1.9    -      -       -      -
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Residues in contact with LEU 49 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  GLU*     4.4     3.1    -      -       -      +
     48A  ARG*     4.0     9.9    -      -       -      +
     49A  LEU*     4.9     4.7    -      -       +      -
     65A  THR*     6.0     0.4    -      -       +      -
     69A  LEU*     3.8    36.8    -      -       +      +
     45B  GLU*     3.2    45.9    +      -       +      +
     46B  ALA*     3.9     1.6    -      -       -      +
     47B  SER      3.3     0.4    -      -       -      -
     48B  ARG*     1.3    73.3    -      -       -      +
     50B  ALA*     1.3    64.9    +      -       -      +
     51B  HIS      3.2     0.2    -      -       -      -
     52B  TYR*     3.2    25.7    +      -       +      +
     53B  ASN      4.1     1.6    +      -       -      -
     62B  GLU*     3.9    32.7    -      -       +      +
     65B  THR*     3.1    26.0    -      -       -      +
     66B  ALA      4.1     2.2    -      -       -      +
     69B  LEU*     4.5     2.9    -      -       +      -
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Residues in contact with ALA 50 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  ALA      3.2    12.9    +      -       -      +
     47B  SER*     3.5    12.1    -      -       -      +
     48B  ARG      3.2     0.8    -      -       -      -
     49B  LEU*     1.3    73.6    -      -       -      +
     51B  HIS*     1.3    61.1    +      -       -      +
     52B  TYR      3.0     5.6    -      -       -      -
     53B  ASN*     3.1    31.0    +      -       -      +
     56B  SER*     3.3    16.1    -      -       -      +
     57B  THR      3.8     4.7    -      -       -      +
     58B  ILE*     3.8    33.4    -      -       +      +
     62B  GLU*     4.1     3.1    -      -       -      -
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Residues in contact with HIS 51 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  ARG*     5.7     0.2    -      -       -      -
     47B  SER      3.9     4.9    +      -       -      +
     48B  ARG*     2.9    33.8    +      -       +      +
     49B  LEU      3.2     1.2    -      -       -      -
     50B  ALA*     1.3    77.4    -      -       -      +
     52B  TYR*     1.3    94.9    +      +       -      +
     53B  ASN      3.6     6.3    +      -       -      +
     56B  SER*     4.7    11.5    -      -       -      +
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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