Contacts of the helix formed by residues 134 - 151 (chain A) in PDB entry 3C2B


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 ARG 134 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  LEU*     4.8     4.3    -      -       +      -
    101A  VAL*     5.9     4.5    -      -       +      -
    102A  LEU*     5.1     6.7    -      -       +      -
    129A  LEU      4.0     4.0    +      -       -      +
    130A  LEU      5.5     1.2    +      -       -      +
    131A  GLU      5.5     0.4    -      -       -      -
    132A  ARG      3.3     0.6    -      -       -      +
    133A  GLY*     1.3    79.3    -      -       -      +
    135A  ARG*     1.3    59.6    +      -       -      +
    136A  GLN      3.3     3.3    +      -       -      -
    137A  ILE*     3.4    21.6    +      -       +      -
    138A  ASP*     2.8    62.0    +      -       -      +
    163A  TYR*     4.0     0.2    +      -       -      -
    167A  TYR*     3.5    37.7    +      -       -      -
    302A  FMT      2.4    34.6    +      -       -      -
    173B  ASP*     2.9    23.4    +      -       -      +
    177B  ARG*     3.7    15.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 135 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  GLU*     2.7    33.4    +      -       -      +
    132A  ARG*     3.7    35.2    +      -       -      +
    133A  GLY      3.7     1.4    -      -       -      -
    134A  ARG*     1.3    77.2    -      -       -      +
    136A  GLN*     1.3    64.5    +      -       +      +
    138A  ASP*     3.8     7.2    -      -       -      +
    139A  ARG*     2.9    40.5    +      -       +      +
    142A  ARG*     5.4     1.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 136 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  VAL*     5.2    11.9    -      -       +      -
     73A  ARG      4.4     7.0    -      -       -      +
     74A  THR*     3.3    29.6    +      -       -      +
     75A  PHE*     3.9    38.4    +      -       +      +
    134A  ARG      3.3     0.6    -      -       -      -
    135A  ARG*     1.3    82.4    -      -       +      +
    137A  ILE*     1.3    66.9    +      -       -      +
    139A  ARG*     3.5     9.4    +      -       -      +
    140A  ARG*     3.0    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 137 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  PHE*     3.5    34.9    -      -       +      -
     94A  PHE*     3.4    26.0    -      -       +      -
     97A  ASP*     4.8     0.2    -      -       +      -
     98A  LEU*     4.0    34.3    -      -       +      +
    101A  VAL*     4.4    21.5    -      -       +      -
    134A  ARG*     3.4    26.8    +      -       +      +
    136A  GLN*     1.3    77.8    -      -       -      +
    138A  ASP*     1.3    62.7    +      -       -      +
    140A  ARG*     3.2     6.5    -      -       -      +
    141A  ALA*     3.1    19.1    +      -       -      +
    163A  TYR*     3.5    18.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 138 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134A  ARG*     2.8    56.2    +      -       -      +
    135A  ARG*     3.8     7.0    +      -       -      +
    136A  GLN      3.3     0.2    -      -       -      -
    137A  ILE*     1.3    73.5    -      -       -      +
    139A  ARG*     1.3    58.3    +      -       -      +
    141A  ALA*     3.3     2.3    +      -       -      +
    142A  ARG*     3.1    60.7    +      -       -      +
    163A  TYR*     2.7    38.7    +      -       +      -
    302A  FMT      4.5     0.8    -      -       -      +
    177B  ARG*     4.5     6.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 139 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  LYS*     5.7     6.3    -      -       -      +
    135A  ARG*     2.9    29.4    +      -       +      +
    136A  GLN*     4.0    11.9    -      -       -      +
    137A  ILE      3.3     0.2    -      -       -      -
    138A  ASP*     1.3    73.4    -      -       -      +
    140A  ARG*     1.3    65.7    +      -       -      +
    142A  ARG*     3.9    12.3    -      -       +      +
    143A  GLY*     2.9    22.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 140 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  ARG*     5.8     1.6    -      -       -      +
     75A  PHE*     3.6    37.8    -      -       +      +
     76A  GLU*     3.5    37.5    +      -       -      +
     77A  LYS      5.0     0.2    -      -       -      -
     78A  ALA*     4.3    12.7    -      -       -      +
     90A  HIS*     4.4    25.0    +      -       -      -
     93A  VAL*     5.5     5.3    -      -       -      +
     94A  PHE*     3.8    25.8    -      -       +      +
     97A  ASP*     5.4     3.4    +      -       -      -
    136A  GLN      3.0    13.6    +      -       -      +
    137A  ILE*     3.2    12.8    -      -       -      +
    139A  ARG*     1.3    77.3    -      -       -      +
    141A  ALA*     1.3    62.8    +      -       -      +
    143A  GLY*     3.6     1.3    -      -       -      -
    144A  LEU*     3.0    52.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 141 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  LEU*     6.4     0.2    -      -       -      -
     94A  PHE*     3.4    26.2    -      -       +      -
    137A  ILE      3.1     4.7    +      -       -      +
    138A  ASP      3.7     0.9    -      -       -      +
    139A  ARG      3.3     0.2    -      -       -      -
    140A  ARG*     1.3    78.0    -      -       -      +
    142A  ARG*     1.3    57.7    +      -       -      +
    144A  LEU*     3.3     6.5    +      -       -      +
    145A  ILE*     2.9    38.2    +      -       +      +
    163A  TYR*     3.4    42.2    -      -       +      -
    166A  PHE*     5.5     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 142 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  ARG*     5.4     1.2    +      -       -      +
    138A  ASP*     3.1    46.0    +      -       -      +
    139A  ARG*     4.0    10.5    -      -       +      +
    141A  ALA*     1.3    71.9    -      -       -      +
    143A  GLY*     1.3    57.1    +      -       -      +
    145A  ILE*     3.8     7.5    -      -       -      +
    146A  GLU*     2.8    37.6    +      -       -      +
    159A  ALA      6.2     0.2    -      -       -      +
    160A  GLU*     4.5    23.7    +      -       +      +
    163A  TYR*     4.2    23.1    -      -       +      -
    302A  FMT      5.8     0.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 143 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  ALA*     3.5    18.1    -      -       -      +
    139A  ARG      2.9    15.4    +      -       -      -
    140A  ARG      3.6     4.0    -      -       -      -
    142A  ARG*     1.3    77.4    -      -       -      +
    144A  LEU*     1.3    55.0    +      -       -      +
    146A  GLU*     3.7     5.2    -      -       -      +
    147A  ALA*     2.9    29.5    +      -       -      +
    150A  ARG*     5.1     2.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 144 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  ALA*     3.7    10.0    -      -       +      +
     82A  VAL*     5.8     1.8    -      -       +      -
     87A  LEU*     4.0    12.4    -      -       +      +
     90A  HIS*     3.5    56.3    -      -       +      +
     91A  LEU*     3.9    20.2    -      -       +      -
     94A  PHE*     3.9    18.8    -      -       +      -
    140A  ARG*     3.0    37.5    +      -       -      +
    141A  ALA*     3.4    10.5    -      -       -      +
    143A  GLY*     1.3    72.9    -      -       -      +
    145A  ILE*     1.3    58.7    +      -       -      +
    147A  ALA*     3.4     7.8    +      -       +      +
    148A  GLY*     2.9    26.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 145 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  LEU*     4.9     6.7    -      -       +      -
    141A  ALA*     2.9    26.4    +      -       -      +
    142A  ARG*     3.8     5.8    -      -       -      +
    144A  LEU*     1.3    73.9    -      -       +      +
    146A  GLU*     1.3    58.7    +      -       -      +
    148A  GLY      3.4     0.7    +      -       -      -
    149A  ARG*     2.9    27.5    +      -       -      +
    154A  LEU*     3.6    12.8    -      -       +      +
    156A  PHE*     3.5    30.5    -      -       +      -
    159A  ALA*     4.5     8.7    -      -       +      +
    162A  ALA*     4.5     6.5    -      -       +      -
    163A  TYR*     3.7    44.9    -      -       +      +
    166A  PHE*     4.8     5.8    -      -       +      -
    199A  PHE*     4.1    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 146 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  ARG      2.8    19.7    +      -       -      +
    143A  GLY*     3.7     5.8    -      -       -      +
    145A  ILE*     1.3    76.7    -      -       -      +
    147A  ALA*     1.3    56.3    +      -       -      +
    149A  ARG*     2.6    49.0    +      -       -      +
    150A  ARG*     2.8    60.1    +      -       -      +
    156A  PHE*     5.0     3.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 147 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  ALA*     4.8     3.6    -      -       +      -
     79A  GLY      3.5    24.7    -      -       -      +
     80A  ASP      3.9     2.2    -      -       -      +
     82A  VAL*     4.2    18.2    -      -       +      -
     87A  LEU*     5.8     0.2    -      -       +      -
    143A  GLY      2.9    21.1    +      -       -      +
    144A  LEU*     3.6     9.4    -      -       +      +
    146A  GLU*     1.3    73.9    -      -       -      +
    148A  GLY*     1.3    59.1    +      -       -      +
    150A  ARG*     3.4    16.4    +      -       -      +
    151A  SER*     2.9    31.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 148 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  VAL*     4.4     3.0    -      -       -      +
     87A  LEU*     4.0    20.6    -      -       -      -
    144A  LEU      2.9    18.4    +      -       -      -
    145A  ILE      3.7     2.9    -      -       -      -
    146A  GLU      3.3     0.2    -      -       -      -
    147A  ALA*     1.3    68.2    -      -       -      +
    149A  ARG*     1.3    62.5    +      -       -      +
    151A  SER*     3.4     4.7    +      -       -      -
    153A  TYR*     2.9    30.7    +      -       -      +
    154A  LEU*     3.3    17.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 149 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  ILE      2.9    14.2    +      -       -      +
    146A  GLU*     2.6    41.8    +      -       -      +
    148A  GLY*     1.3    72.0    -      -       -      +
    150A  ARG*     1.3    82.4    +      -       -      +
    152A  GLY*     2.9    16.5    +      -       -      -
    154A  LEU*     3.6    24.6    -      -       -      +
    155A  ARG*     5.5     0.9    -      -       -      -
    156A  PHE*     3.8    31.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  ALA      5.6     2.0    +      -       -      -
     79A  GLY      4.2     0.4    +      -       -      -
     80A  ASP*     2.4    67.1    +      -       -      +
     81A  ARG*     3.9    18.6    +      -       +      -
    143A  GLY*     5.1     2.0    +      -       -      -
    146A  GLU*     2.8    57.2    +      -       -      +
    147A  ALA*     3.4    23.8    -      -       -      +
    148A  GLY      3.5     0.2    -      -       -      -
    149A  ARG*     1.3    85.3    -      -       -      +
    151A  SER*     1.3    57.5    +      -       -      +
    152A  GLY*     3.1     3.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  ARG*     3.6    23.9    +      -       -      +
     82A  VAL*     3.2    25.2    +      -       -      -
    147A  ALA      2.9    17.6    +      -       -      -
    148A  GLY      3.4     0.9    +      -       -      -
    149A  ARG      3.0     1.2    -      -       -      -
    150A  ARG*     1.3    76.8    -      -       -      +
    152A  GLY*     1.3    56.5    +      -       -      +
    153A  TYR*     3.3    31.4    +      -       -      -
    207A  LYS*     2.8    30.5    +      -       -      -
----------------------------------------------------------
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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