Contacts of the helix formed by residues 27 - 53 (chain B) in PDB entry 1UPX


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 LYS 27 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4B  MET*     4.4     0.4    -      -       -      -
     21B  VAL*     4.8     7.2    -      -       +      -
     25B  GLY      3.2    12.1    +      -       -      +
     26B  LYS*     1.3    77.3    -      -       -      +
     28B  PRO*     1.3    77.1    -      -       +      +
     29B  GLU*     3.3     4.5    -      -       +      +
     30B  THR*     3.0    18.5    +      -       -      +
     31B  ALA*     2.9    19.1    +      -       -      +
     79B  PHE*     5.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 28 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3B  ALA*     3.8    30.9    -      -       +      +
      4B  MET*     3.9    13.2    -      -       +      +
     20B  GLN*     3.2    39.9    -      -       -      +
     21B  VAL*     4.6     4.3    -      -       +      -
     27B  LYS*     1.3    88.9    -      -       +      +
     29B  GLU*     1.3    60.4    +      -       +      +
     31B  ALA*     3.3     2.8    +      -       +      +
     32B  ALA*     2.9    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 29 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27B  LYS*     3.3     4.0    -      -       +      +
     28B  PRO*     1.3    78.2    -      -       +      +
     30B  THR*     1.3    66.2    +      -       -      +
     32B  ALA*     3.3     1.4    +      -       -      -
     33B  LEU*     3.0    22.2    +      -       +      +
     81B  ASP*     4.2    15.1    -      -       -      +
    119B  LYS*     4.5    10.4    +      -       -      -
    123B  LEU*     3.4    44.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 30 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  LYS*     3.8    17.0    -      -       +      -
     27B  LYS*     3.0    22.9    +      -       -      +
     29B  GLU*     1.3    79.0    -      -       -      +
     31B  ALA*     1.3    61.6    +      -       -      +
     33B  LEU*     3.2     4.9    +      -       -      +
     34B  GLN*     3.0    31.5    +      -       -      +
     79B  PHE*     3.9    24.1    +      -       +      +
     81B  ASP*     2.6    29.0    +      -       -      +
     84B  LEU*     3.8    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 31 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4B  MET*     3.7    39.0    -      -       +      -
      5B  PHE      5.5     1.6    -      -       -      +
      6B  CYS*     5.3     2.5    -      -       +      -
     26B  LYS*     3.8    19.0    -      -       -      +
     27B  LYS      2.9     9.8    +      -       -      +
     28B  PRO      3.5     8.5    -      -       -      +
     29B  GLU      3.3     0.2    -      -       -      -
     30B  THR*     1.3    78.1    -      -       -      +
     32B  ALA*     1.3    56.3    +      -       -      +
     34B  GLN*     3.3     4.4    +      -       -      +
     35B  ASP*     3.0    36.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 32 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3B  ALA      5.7     2.0    -      -       -      +
      4B  MET*     5.6     0.2    -      -       -      +
     28B  PRO      2.9    13.6    +      -       -      +
     29B  GLU*     3.5    10.1    -      -       -      +
     30B  THR      3.2     0.4    -      -       -      -
     31B  ALA*     1.3    73.9    -      -       -      +
     33B  LEU*     1.3    59.8    +      -       -      +
     35B  ASP*     3.2     5.6    +      -       -      -
     36B  ALA*     2.9    25.7    +      -       -      +
    122B  MET      5.3     0.2    -      -       -      -
    123B  LEU*     3.7    20.4    -      -       +      +
    126B  ALA*     3.2    32.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 33 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  GLU      3.0    16.1    +      -       -      +
     30B  THR      3.2     6.9    +      -       -      +
     32B  ALA*     1.3    75.1    -      -       -      +
     34B  GLN*     1.3    57.7    +      -       -      +
     36B  ALA*     3.3     4.9    +      -       +      +
     37B  LEU*     2.9    29.1    +      -       -      +
     81B  ASP*     3.5    52.9    -      -       +      +
     84B  LEU*     4.1    16.3    -      -       +      +
     85B  ALA*     4.5     3.1    -      -       +      -
     88B  VAL*     4.1     3.6    -      -       +      +
    119B  LYS*     4.0    17.3    -      -       +      -
    122B  MET*     3.8    40.4    -      -       +      -
    123B  LEU*     3.8    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 34 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  LYS*     3.3    37.4    +      -       -      +
     30B  THR*     3.0    17.5    +      -       -      +
     31B  ALA*     3.7     7.2    -      -       -      +
     33B  LEU*     1.3    75.3    -      -       -      +
     35B  ASP*     1.3    59.0    +      -       -      +
     37B  LEU*     3.2     4.5    +      -       -      +
     38B  ILE*     2.9    34.4    +      -       -      +
     72B  ALA      4.0     6.2    +      -       -      -
     73B  THR*     3.5    42.2    -      -       +      +
     74B  ILE      5.2     1.8    +      -       -      +
     78B  ASN      2.9    28.7    +      -       -      +
     84B  LEU*     3.9    17.6    -      -       +      +
    151B  LYS*     5.3     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 35 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4B  MET*     6.0     0.3    -      -       -      -
      5B  PHE      4.3    18.4    +      -       -      +
      6B  CYS*     6.1     0.3    -      -       -      +
     31B  ALA*     3.0    21.4    +      -       -      +
     32B  ALA*     3.2    10.6    +      -       -      +
     34B  GLN*     1.3    78.1    -      -       -      +
     36B  ALA*     1.3    61.4    +      -       -      +
     38B  ILE*     3.4     7.4    +      -       -      +
     39B  TYR*     3.0    23.0    +      -       -      +
    126B  ALA*     4.3    13.1    -      -       +      +
    129B  VAL*     4.2     6.9    -      -       +      +
    130B  GLY*     3.9    28.6    -      -       -      +
    131B  VAL*     4.8     3.5    +      -       -      +
    144B  TRP*     5.4     7.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 36 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32B  ALA      2.9    14.2    +      -       -      +
     33B  LEU*     3.6    10.5    -      -       -      +
     35B  ASP*     1.3    75.7    -      -       -      +
     37B  LEU*     1.3    63.4    +      -       -      +
     39B  TYR*     3.2     7.8    +      -       -      +
     40B  VAL*     3.0    27.5    +      -       -      +
     88B  VAL*     4.3    11.0    -      -       +      -
    114B  TRP*     4.7    13.0    -      -       +      -
    122B  MET*     4.1    25.4    -      -       +      +
    125B  LYS*     5.6     0.7    -      -       +      -
    126B  ALA*     4.5     3.1    -      -       +      +
    129B  VAL*     4.6     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 37 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33B  LEU      2.9    16.8    +      -       -      +
     34B  GLN*     3.2     6.3    +      -       -      +
     36B  ALA*     1.3    74.1    -      -       -      +
     38B  ILE*     1.3    56.4    +      -       +      +
     40B  VAL*     3.4     4.5    -      -       +      +
     41B  THR*     2.7    37.2    +      -       -      -
     69B  ASN*     3.6    52.0    -      -       +      +
     72B  ALA*     4.6     0.4    -      -       +      -
     73B  THR*     4.0    10.5    -      -       +      -
     84B  LEU*     4.2    18.8    -      -       +      +
     87B  ARG*     3.7    21.5    -      -       +      +
     88B  VAL*     3.7    35.6    -      -       +      +
     91B  THR*     3.9     2.0    -      -       -      +
----------------------------------------------------------
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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  GLN*     2.9    21.2    +      -       +      +
     35B  ASP*     3.8     6.7    -      -       -      +
     37B  LEU*     1.3    77.7    -      -       -      +
     39B  TYR*     1.3    63.2    +      -       -      +
     41B  THR*     3.2     4.2    +      -       -      -
     42B  LYS*     2.9    53.5    +      -       +      +
     69B  ASN      4.6     2.2    -      -       -      +
     70B  LEU*     3.7    29.6    -      -       +      -
     73B  THR*     3.4    33.2    -      -       +      +
    144B  TRP*     4.1    20.0    -      -       +      -
    147B  THR*     4.3     3.8    -      -       +      -
    151B  LYS*     4.1    11.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 39 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  ASP      3.0    14.3    +      -       -      +
     36B  ALA*     3.2     8.9    +      -       -      +
     38B  ILE*     1.3    77.9    -      -       -      +
     40B  VAL*     1.3    58.5    +      -       +      +
     42B  LYS*     3.3     8.9    +      -       -      +
     43B  GLY      3.0    21.1    +      -       -      -
    110B  ASP*     2.6    37.2    +      -       -      +
    111B  ALA*     3.2    40.8    +      -       +      +
    114B  TRP*     4.1    23.6    -      +       +      -
    125B  LYS*     3.8    14.4    -      -       +      -
    129B  VAL*     3.5    49.0    -      -       +      +
    182B  LEU*     5.0    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 40 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36B  ALA      3.0    13.2    +      -       -      +
     37B  LEU*     3.4    17.3    -      -       +      +
     39B  TYR*     1.3    80.6    -      -       +      +
     41B  THR*     1.3    60.0    +      -       -      +
     43B  GLY*     3.7     1.0    -      -       -      +
     44B  LEU*     2.9    28.6    +      -       -      +
     88B  VAL*     4.3    11.4    -      -       +      +
     91B  THR*     3.6    24.7    -      -       +      +
     92B  CYS*     4.0     7.2    -      -       -      -
     95B  LYS*     3.7    27.2    -      -       -      +
    111B  ALA      4.3     3.6    -      -       -      +
    114B  TRP*     3.4    39.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 41 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37B  LEU      2.7    21.6    +      -       -      -
     38B  ILE*     3.5     8.5    -      -       -      -
     40B  VAL*     1.3    74.1    -      -       -      +
     42B  LYS*     1.3    60.0    +      -       -      +
     44B  LEU*     3.3     3.8    +      -       -      +
     45B  GLY*     2.9    24.9    +      -       -      -
     66B  VAL*     4.0    32.5    -      -       +      +
     69B  ASN*     2.9    38.3    +      -       +      +
     70B  LEU*     4.5     9.9    -      -       +      -
     91B  THR*     4.2     5.8    -      -       -      -
    178B  LEU*     4.0    12.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 42 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38B  ILE*     2.9    31.5    +      -       +      +
     39B  TYR*     3.6     7.4    -      -       -      +
     41B  THR*     1.3    73.5    -      -       -      +
     43B  GLY*     1.3    58.3    +      -       -      +
     45B  GLY*     3.2     2.3    +      -       -      -
     46B  GLN*     2.9    26.9    +      -       -      +
    143B  ARG*     4.9     1.4    +      -       -      +
    144B  TRP*     3.7    28.3    -      -       -      -
    147B  THR*     3.1    29.4    +      -       -      -
    178B  LEU*     3.8    33.0    -      -       +      +
    179B  ALA*     4.3     5.9    -      -       -      -
    181B  THR*     3.1    26.4    +      -       -      +
    182B  LEU*     3.5    35.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 43 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39B  TYR      3.0    11.5    +      -       -      -
     40B  VAL      3.3     1.5    +      -       -      -
     41B  THR      3.3     0.2    -      -       -      -
     42B  LYS*     1.3    77.0    -      -       -      +
     44B  LEU*     1.3    59.9    +      -       -      +
     46B  GLN*     3.2     8.0    +      -       -      +
     47B  ILE*     3.1    25.8    +      -       -      +
     95B  LYS*     4.2     2.0    -      -       -      -
    109B  SER*     4.9     0.4    -      -       -      -
    111B  ALA*     3.7    34.0    -      -       -      +
    112B  ALA*     3.7     8.1    -      -       -      +
    182B  LEU*     4.7     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 44 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40B  VAL      2.9    17.8    +      -       -      +
     41B  THR*     3.5     5.8    -      -       -      +
     42B  LYS      3.3     0.2    -      -       -      -
     43B  GLY*     1.3    75.0    -      -       -      +
     45B  GLY*     1.3    56.6    +      -       -      +
     47B  ILE*     3.2     2.1    +      -       +      +
     48B  ALA*     2.9    29.7    +      -       +      +
     62B  ILE*     4.1    15.3    -      -       +      -
     65B  LEU*     3.9    28.7    -      -       +      -
     66B  VAL*     3.8    23.8    -      -       +      -
     69B  ASN*     5.3     0.4    -      -       -      +
     91B  THR*     4.0    12.1    -      -       +      -
     94B  ALA*     4.4     2.7    -      -       +      -
     95B  LYS*     3.7    32.4    -      -       +      +
     98B  LEU*     3.6    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 45 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  THR      2.9    13.9    +      -       -      -
     42B  LYS*     3.2     5.8    +      -       -      -
     44B  LEU*     1.3    77.9    -      -       -      +
     46B  GLN*     1.3    53.8    +      -       -      +
     48B  ALA*     4.0     1.0    -      -       -      +
     49B  THR*     2.7    37.9    +      -       -      -
     66B  VAL*     5.4     0.9    -      -       -      +
    175B  GLN*     3.6    34.8    -      -       -      -
    178B  LEU*     4.9     2.5    -      -       -      -
    179B  ALA*     4.0     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 46 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  LYS      2.9    12.6    +      -       -      +
     43B  GLY*     3.2     8.9    +      -       -      +
     45B  GLY*     1.3    75.7    -      -       -      +
     47B  ILE*     1.3    64.2    +      -       -      +
     49B  THR*     3.7     1.8    -      -       -      -
     50B  ARG*     3.0    55.3    +      -       +      +
    107B  GLY      4.1    10.1    +      -       -      -
    108B  LEU*     4.6     3.6    -      -       -      -
    109B  SER*     3.1    35.7    +      -       -      +
    112B  ALA*     3.6     7.4    -      -       -      +
    179B  ALA*     3.6    21.7    -      -       +      +
    182B  LEU*     5.9     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 47 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  GLY      3.1    16.1    +      -       -      +
     44B  LEU*     3.2     5.8    +      -       -      +
     46B  GLN*     1.3    77.5    -      -       -      +
     48B  ALA*     1.3    56.9    +      -       -      +
     50B  ARG*     3.2     8.5    +      -       -      +
     51B  LEU*     2.9    28.9    +      -       +      +
     95B  LYS*     3.6    33.4    -      -       +      +
     98B  LEU*     3.6    31.2    -      -       +      +
     99B  ALA*     3.6    22.7    -      -       +      +
    102B  LEU*     4.2     6.9    -      -       +      +
    108B  LEU*     4.2    12.8    -      -       +      -
    112B  ALA*     3.7    30.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 48 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44B  LEU      2.9    17.7    +      -       -      +
     45B  GLY      4.0     1.8    -      -       -      +
     47B  ILE*     1.3    77.1    -      -       -      +
     49B  THR*     1.3    56.3    +      -       -      +
     51B  LEU*     3.2     4.6    +      -       -      +
     52B  ARG*     3.0    37.9    +      -       -      +
     58B  VAL*     3.7    12.2    -      -       +      +
     62B  ILE*     4.6     3.1    -      -       +      -
     98B  LEU*     4.1    20.4    -      -       +      +
    175B  GLN*     3.2    27.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 49 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45B  GLY      2.7    22.6    +      -       -      -
     46B  GLN*     3.7     6.5    -      -       -      -
     48B  ALA*     1.3    76.3    -      -       -      +
     50B  ARG*     1.3    58.3    +      -       +      +
     52B  ARG*     3.3    12.1    +      -       -      +
     53B  ALA*     3.0    29.8    +      -       +      +
    172B  ALA      4.7     0.3    +      -       -      -
    175B  GLN*     3.3     3.1    +      -       -      +
    176B  GLU*     3.3    47.9    +      -       +      +
    179B  ALA*     4.6     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 50 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  GLN*     3.0    40.9    +      -       +      +
     47B  ILE*     3.2     4.9    +      -       -      +
     49B  THR*     1.3    77.0    -      -       +      +
     51B  LEU*     1.3    62.3    +      -       -      +
     53B  ALA*     3.3     9.4    +      -       +      +
     54B  GLU*     3.2    21.7    +      -       -      +
    102B  LEU*     3.7    14.8    -      -       +      +
    104B  ASP*     2.9    34.1    +      -       -      +
    105B  LYS*     3.8     2.2    -      -       -      +
    106B  SER*     2.8    33.9    +      -       -      +
    107B  GLY      3.6    12.3    +      -       -      -
    108B  LEU*     3.5    25.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 51 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47B  ILE      2.9    16.7    +      -       -      +
     48B  ALA      3.2     6.3    +      -       -      +
     50B  ARG*     1.3    73.1    -      -       -      +
     52B  ARG*     1.3    65.7    +      -       -      +
     54B  GLU*     3.1    34.6    +      -       -      +
     56B  LYS*     3.0    34.7    +      -       +      -
     57B  ALA      5.0     2.9    -      -       -      +
     58B  VAL*     4.0    13.7    -      -       +      -
     98B  LEU*     3.6    50.5    -      -       +      +
    101B  SER*     3.7    29.6    -      -       -      +
    102B  LEU*     3.8     9.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 52 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48B  ALA*     3.0    27.9    +      -       -      +
     49B  THR*     3.3    11.5    +      -       +      +
     51B  LEU*     1.3    75.9    -      -       -      +
     53B  ALA*     1.3    57.8    +      -       -      +
     54B  GLU      3.2     0.2    -      -       -      -
     55B  GLY*     3.0    19.9    +      -       -      -
     56B  LYS      3.6    10.3    -      -       -      +
     58B  VAL*     3.7    29.9    +      -       +      +
     63B  ASP*     3.2    20.8    +      -       -      -
    168B  ASN      5.3     0.6    +      -       -      -
    171B  ASP*     4.9     0.4    -      -       -      +
    172B  ALA*     3.7    37.1    +      -       -      +
    175B  GLN*     2.8    41.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 53 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  THR*     3.0    20.1    +      -       +      +
     50B  ARG*     3.6    10.3    -      -       +      +
     51B  LEU      3.1     0.4    -      -       -      -
     52B  ARG*     1.3    75.7    -      -       -      +
     54B  GLU*     1.3    56.4    +      -       -      +
     55B  GLY      3.4     1.3    -      -       -      -
----------------------------------------------------------
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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