Contacts of the helix formed by residues 117 - 143 (chain A) in PDB entry 2VQQ


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 ILE 117 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  THR*     1.3    73.5    -      -       -      +
    118A  TRP*     1.3    72.6    +      -       +      +
    119A  ASN      3.1     0.2    -      -       -      -
    120A  GLU*     3.1    25.0    +      -       +      +
    121A  VAL*     3.3    11.7    +      -       +      +
     20B  LYS*     5.4     0.6    -      -       -      +
    168B  PHE*     4.0    33.4    -      -       +      -
    299B  LEU*     3.6    39.9    -      -       +      -
    332B  HIS*     3.8    45.9    -      -       +      +
   1409B  TFG      5.1     9.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 118 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  PRO*     4.1    15.3    -      -       +      -
     84A  LEU*     4.0    26.7    -      -       +      -
    112A  VAL*     3.7    20.3    -      -       +      +
    116A  THR*     3.0    19.6    +      -       +      +
    117A  ILE*     1.3    87.5    -      -       +      +
    119A  ASN*     1.3    60.3    +      -       -      +
    121A  VAL*     3.5    30.4    +      -       +      +
    122A  HIS*     3.0    27.5    +      -       -      +
    296B  PRO*     3.8    31.2    -      -       +      -
    298B  PRO*     6.4     0.2    -      -       +      -
    299B  LEU*     4.5     9.0    -      -       +      -
    332B  HIS*     4.4    17.4    +      +       -      -
----------------------------------------------------------
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Residues in contact with ASN 119 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  LYS*     4.3    34.6    +      -       -      +
    112A  VAL*     4.0     9.7    -      -       -      +
    114A  SER*     3.3    43.0    -      -       -      +
    116A  THR      2.9    16.2    +      -       -      +
    118A  TRP*     1.3    77.7    -      -       -      +
    120A  GLU*     1.3    72.5    +      -       -      +
    122A  HIS*     3.4     8.0    +      -       -      +
    123A  SER*     2.9    35.5    +      -       -      -
    114B  SER      5.7     0.9    -      -       -      +
    115B  ASP*     5.1     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 120 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  THR      4.3     5.5    -      -       -      +
    117A  ILE*     3.1    12.3    +      -       -      +
    119A  ASN*     1.3    94.1    -      -       -      +
    121A  VAL*     1.3    66.5    +      -       -      +
    123A  SER*     3.4     9.9    +      -       -      -
    124A  ALA*     3.0    23.6    +      -       -      +
    170A  TYR*     3.5    20.8    +      -       -      +
     20B  LYS*     6.0     0.3    +      -       -      -
    120B  GLU*     5.1     7.1    -      -       -      +
    168B  PHE*     3.7    30.3    -      -       +      -
   1409B  TFG      3.8    18.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 121 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  ASN*     5.2     1.6    -      -       -      +
     83A  PRO*     3.6    31.9    -      -       +      -
    117A  ILE      3.3    10.2    +      -       -      +
    118A  TRP*     3.6    37.2    -      -       +      +
    119A  ASN      3.4     0.2    -      -       -      -
    120A  GLU*     1.3    76.0    -      -       -      +
    122A  HIS*     1.3    63.4    +      -       -      +
    124A  ALA*     3.3     5.4    +      -       -      +
    125A  GLY*     3.1    17.8    +      -       -      -
    299B  LEU*     4.0    17.0    -      -       +      -
   1409B  TFG      3.8    29.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 122 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  LEU      3.4    21.9    +      -       -      -
     19A  LEU      2.7    27.6    +      -       -      -
     20A  LYS*     3.8    15.3    +      -       -      -
     22A  GLN*     3.6    19.6    +      -       +      +
    112A  VAL*     5.1    15.6    -      -       +      +
    118A  TRP      3.0    17.0    +      -       -      +
    119A  ASN*     3.5    10.5    -      -       -      +
    121A  VAL*     1.3    76.9    -      -       -      +
    123A  SER*     1.3    50.6    +      -       -      +
    125A  GLY*     3.1     4.2    +      -       -      +
    126A  ALA*     2.7    35.6    +      -       +      +
    154A  ARG*     3.7    15.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 123 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  LYS*     4.7     2.9    -      -       -      -
    119A  ASN*     2.9    27.5    +      -       -      -
    120A  GLU*     3.7    13.6    +      -       -      -
    121A  VAL      3.3     0.2    -      -       -      -
    122A  HIS*     1.3    75.2    -      -       -      +
    124A  ALA*     1.3    58.0    +      -       -      +
    126A  ALA*     3.3     3.3    +      -       -      +
    127A  ALA*     2.9    23.9    +      -       -      +
    154A  ARG*     3.0    33.2    +      -       -      +
    155A  PRO*     3.4    11.5    -      -       -      +
    170A  TYR*     4.2    14.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 124 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  TYR*     3.6    17.4    -      -       +      +
    120A  GLU      3.0     9.2    +      -       -      +
    121A  VAL      3.6     2.5    -      -       -      +
    123A  SER*     1.3    72.7    -      -       -      +
    125A  GLY*     1.3    63.3    +      -       -      +
    127A  ALA*     3.3     4.2    +      -       -      +
    128A  ARG*     3.2    18.4    +      -       -      +
    170A  TYR*     3.9    29.1    -      -       +      -
    171A  PHE*     3.8     8.5    -      -       -      -
   1409B  TFG      3.5    32.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 125 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  LYS*     5.8     1.2    -      -       -      +
     79A  TYR      4.6     2.4    +      -       -      -
     80A  GLY      6.6     0.2    -      -       -      -
    121A  VAL      3.1    13.4    +      -       -      -
    122A  HIS*     3.1     5.6    +      -       -      -
    124A  ALA*     1.3    74.3    -      -       -      +
    126A  ALA*     1.3    62.8    +      -       -      +
    128A  ARG*     3.2    10.0    +      -       -      +
    129A  LEU*     3.1    20.8    +      -       -      +
   1409B  TFG      5.4     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 126 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  LEU      4.7     4.7    -      -       -      +
     18A  MET*     3.8    20.3    -      -       -      +
    122A  HIS*     2.7    18.3    +      -       -      +
    123A  SER      3.4     9.4    -      -       -      +
    125A  GLY*     1.3    71.2    -      -       -      +
    127A  ALA*     1.3    56.4    +      -       -      +
    129A  LEU*     3.3     8.5    +      -       -      +
    130A  ALA*     2.8    29.3    +      -       -      +
    154A  ARG*     3.5    27.0    -      -       -      +
    155A  PRO*     3.7    10.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 127 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  SER      2.9    13.6    +      -       -      +
    124A  ALA      3.4    10.1    -      -       -      +
    125A  GLY      3.2     0.4    -      -       -      -
    126A  ALA*     1.3    73.9    -      -       -      +
    128A  ARG*     1.3    65.3    +      -       -      +
    130A  ALA*     3.3     4.8    +      -       -      +
    131A  VAL*     3.0    28.9    +      -       -      +
    155A  PRO*     3.5    18.3    -      -       +      +
    156A  PRO      5.9     1.3    -      -       -      +
    170A  TYR*     3.8    17.9    -      -       +      +
    171A  PHE*     3.7    22.8    -      -       +      +
    173A  SER*     4.6     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 128 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  LYS*     3.9    31.8    -      -       +      +
     62A  ALA*     2.8    52.4    +      -       -      +
     63A  THR*     4.2     3.0    -      -       -      +
     64A  LEU*     3.6    27.7    -      -       -      +
     67A  LEU*     4.3    15.0    -      -       +      -
     80A  GLY*     2.8    37.7    +      -       -      -
     81A  THR*     5.0     1.6    -      -       -      +
     82A  ASN      5.7     0.2    -      -       -      +
    124A  ALA      3.2     9.6    +      -       -      +
    125A  GLY*     3.2    12.3    +      -       -      +
    127A  ALA*     1.3    77.8    -      -       -      +
    129A  LEU*     1.3    60.5    +      -       -      +
    131A  VAL*     3.6     2.8    +      -       -      -
    132A  GLY      3.4     6.8    +      -       -      -
    171A  PHE*     3.8    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 129 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  ASP*     4.0    15.5    -      -       -      +
     17A  LEU*     3.6    37.7    -      -       +      +
     18A  MET*     3.8    21.5    -      -       +      +
     60A  ARG*     3.2    35.2    -      -       -      +
     61A  LYS*     3.9    12.5    -      -       +      +
    125A  GLY      3.1    12.1    +      -       -      +
    126A  ALA*     3.5     9.2    -      -       -      +
    127A  ALA      3.2     0.2    -      -       -      -
    128A  ARG*     1.3    75.2    -      -       -      +
    130A  ALA*     1.3    59.7    +      -       -      +
    132A  GLY      3.2     0.3    +      -       -      -
    133A  CYS*     2.9    41.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 130 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  MET*     3.9    13.2    -      -       -      -
    126A  ALA      2.8    20.6    +      -       -      +
    127A  ALA*     3.5     7.9    -      -       -      +
    129A  LEU*     1.3    73.5    -      -       -      +
    131A  VAL*     1.3    61.4    +      -       -      +
    133A  CYS*     3.4     2.1    +      -       -      +
    134A  VAL*     3.0    28.9    +      -       -      +
    153A  VAL*     4.0    15.0    -      -       +      -
    154A  ARG      3.6    20.2    -      -       -      +
    155A  PRO      4.3     4.9    -      -       -      +
    173A  SER*     4.0     9.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  ALA*     3.6    23.8    -      -       +      -
     67A  LEU*     3.8     9.0    -      -       +      -
    127A  ALA      3.0    15.7    +      -       -      +
    128A  ARG      3.8     1.3    -      -       -      +
    129A  LEU      3.2     0.4    -      -       -      -
    130A  ALA*     1.3    74.4    -      -       -      +
    132A  GLY*     1.3    58.2    +      -       -      +
    134A  VAL*     3.3     2.4    +      -       -      +
    135A  VAL*     2.9    30.9    +      -       +      +
    171A  PHE*     3.6    26.0    -      -       +      -
    172A  ASN      4.8     0.2    -      -       -      -
    173A  SER*     3.4    28.0    -      -       -      +
    176A  VAL*     3.7    33.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  ARG*     3.0    27.3    +      -       -      +
     61A  LYS      4.1     1.3    -      -       -      -
     62A  ALA*     3.6    14.9    -      -       -      +
    128A  ARG      3.4     4.9    +      -       -      -
    129A  LEU      3.2     3.2    +      -       -      -
    131A  VAL*     1.3    76.3    -      -       -      +
    133A  CYS*     1.3    59.3    +      -       -      +
    135A  VAL*     3.8     6.3    -      -       -      +
    136A  GLU*     3.0    35.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 133 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  VAL*     3.5    31.2    -      -       +      +
     14A  TYR      5.2     0.9    -      -       -      -
     15A  ASP*     4.3     8.1    -      -       -      -
     18A  MET*     4.3    15.5    -      -       -      -
     59A  GLY*     3.7    25.6    -      -       -      -
     60A  ARG      3.5     0.4    +      -       -      -
    129A  LEU*     2.9    36.5    +      -       -      +
    130A  ALA      3.6     4.9    -      -       -      +
    132A  GLY*     1.3    77.3    -      -       -      +
    134A  VAL*     1.3    62.0    +      -       -      +
    136A  GLU*     3.8     0.6    -      -       -      +
    137A  LEU      3.2    17.7    +      -       -      -
    153A  VAL*     3.9    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 134 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130A  ALA      3.0    17.6    +      -       -      +
    131A  VAL      3.8     3.8    -      -       -      +
    133A  CYS*     1.3    74.1    -      -       -      +
    135A  VAL*     1.3    59.1    +      -       -      +
    137A  LEU*     3.3     3.0    +      -       -      +
    138A  VAL*     2.9    48.4    +      -       +      +
    151A  ALA*     3.9    26.5    -      -       +      -
    153A  VAL*     4.0    16.4    -      -       +      -
    173A  SER*     4.0    32.3    -      -       -      +
    174A  VAL*     4.6     4.7    -      -       +      +
    177A  ALA*     4.1     4.3    -      -       +      -
    325A  VAL*     5.3     2.0    -      -       +      -
    327A  ALA*     4.2    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 135 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  ARG*     3.6    24.2    -      -       -      +
     66A  GLU*     4.7     3.4    -      -       -      +
    131A  VAL*     2.9    23.9    +      -       +      +
    132A  GLY*     3.8     6.1    -      -       -      +
    134A  VAL*     1.3    75.7    -      -       -      +
    136A  GLU*     1.3    59.3    +      -       -      +
    138A  VAL*     3.4     1.0    +      -       -      +
    139A  PHE*     2.9    44.5    +      -       +      +
    173A  SER      5.0     0.2    -      -       -      +
    176A  VAL*     4.2     8.1    -      -       +      -
    177A  ALA*     3.9    26.2    -      -       +      +
    180A  LEU*     3.7    32.5    -      -       +      -
    184A  ARG*     5.6     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 136 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  ILE*     3.8    11.7    -      -       +      -
     58A  ARG      4.1    16.4    -      -       -      +
     59A  GLY*     4.9     0.9    -      -       -      -
     60A  ARG*     3.0    42.3    +      -       +      +
    132A  GLY      3.0    21.1    +      -       -      +
    133A  CYS*     3.8     5.6    -      -       -      +
    135A  VAL*     1.3    74.8    -      -       -      +
    137A  LEU*     1.3    63.1    +      -       -      +
    139A  PHE*     3.5     4.8    +      -       -      +
    140A  LYS*     3.1    46.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 137 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  GLY*     4.1    20.0    -      -       -      +
     13A  VAL*     3.8    19.1    -      -       +      +
     57A  ILE*     3.5    14.1    -      -       +      +
    133A  CYS      3.2    14.4    +      -       -      +
    134A  VAL*     3.8     3.6    -      -       -      +
    136A  GLU*     1.3    75.5    -      -       -      +
    138A  VAL*     1.3    65.8    +      -       -      +
    140A  LYS*     3.3     2.0    +      -       -      +
    141A  VAL*     3.1    26.2    +      -       +      +
    146A  LEU*     4.1    19.3    -      -       +      -
    149A  GLY*     3.8    12.3    -      -       -      -
    150A  PHE      3.6    41.7    -      -       -      +
    151A  ALA*     3.9     2.9    -      -       +      +
    325A  VAL*     3.9    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 138 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134A  VAL*     2.9    26.0    +      -       +      +
    135A  VAL      3.7     3.6    -      -       -      +
    137A  LEU*     1.3    75.9    -      -       -      +
    139A  PHE*     1.3    58.6    +      -       +      +
    141A  VAL*     3.4     2.6    +      -       -      +
    142A  ALA*     2.9    28.5    +      -       +      +
    177A  ALA*     3.9    21.8    -      -       +      -
    181A  LEU*     3.6    37.5    -      -       +      -
    282A  VAL*     5.3     1.9    -      -       +      +
    284A  LEU*     3.8    26.5    -      -       +      -
    325A  VAL*     3.9    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 139 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  VAL*     2.9    37.9    +      -       +      +
    136A  GLU*     4.0     5.8    -      -       -      +
    138A  VAL*     1.3    78.5    -      -       +      +
    140A  LYS*     1.3    56.7    +      -       +      +
    142A  ALA*     4.4     3.1    -      -       -      -
    143A  THR*     3.0    40.9    +      -       +      +
    177A  ALA      4.3     4.3    -      -       -      -
    180A  LEU*     3.5    45.5    -      -       +      -
    181A  LEU*     3.8    18.8    -      -       +      -
    184A  ARG*     4.1    18.6    -      -       +      -
    185A  LEU*     3.5    32.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 140 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  ILE*     4.1    32.5    -      -       +      +
     58A  ARG      5.9     0.8    -      -       -      +
    136A  GLU*     3.1    34.9    +      -       -      +
    137A  LEU*     3.3     5.1    +      -       -      +
    139A  PHE*     1.3    76.7    -      -       +      +
    141A  VAL*     1.3    60.2    -      -       -      +
    143A  THR*     3.8     5.2    -      -       -      -
    144A  GLY      3.4     1.0    +      -       -      -
    145A  GLU*     2.9    67.2    +      -       +      +
    146A  LEU*     2.9    21.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 141 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  LEU*     3.1    19.4    +      -       +      +
    138A  VAL      3.9     3.8    -      -       -      +
    140A  LYS*     1.3    77.0    -      -       -      +
    142A  ALA*     1.3    60.4    +      -       -      +
    143A  THR      3.2     0.4    -      -       -      -
    144A  GLY*     3.1    15.9    +      -       -      -
    146A  LEU*     3.4    16.3    -      -       +      +
    147A  LYS      3.4    19.7    -      -       -      +
    148A  ASN*     3.4    34.5    -      -       -      +
    282A  VAL*     5.9     2.5    -      -       +      -
    323A  ARG*     4.0    19.8    -      -       +      +
    324A  ILE      3.9    20.9    -      -       -      +
    325A  VAL*     3.7    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 142 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138A  VAL*     2.9    18.6    +      -       +      +
    139A  PHE*     3.4     3.3    +      -       -      +
    141A  VAL*     1.3    76.6    -      -       -      +
    143A  THR*     1.3    59.6    +      -       -      +
    181A  LEU*     3.6    28.0    -      -       +      -
    185A  LEU*     4.4     8.2    -      -       +      +
    187A  VAL*     5.4     2.5    -      -       +      -
    282A  VAL*     4.2    17.3    -      -       +      +
    323A  ARG*     4.4    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 143 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  PHE*     3.0    25.8    +      -       +      +
    140A  LYS*     3.4    10.2    +      -       -      -
    142A  ALA*     1.3    77.7    -      -       -      +
    144A  GLY*     1.3    60.5    +      -       -      +
    145A  GLU*     3.6    11.1    +      -       -      +
    185A  LEU*     4.1    26.5    -      -       +      -
----------------------------------------------------------
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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