Contacts of the helix formed by residues 627 - 640 (chain A) in PDB entry 2H5G


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 THR 627 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    623A  ASP      4.9     3.1    -      -       -      -
    624A  LEU*     2.8    45.8    +      -       +      +
    625A  LEU      3.4     1.8    +      -       -      -
    626A  ARG*     1.3    77.4    -      -       -      +
    628A  PRO*     1.4    76.2    -      -       -      +
    629A  LEU*     3.5    15.4    +      -       +      +
    630A  PHE*     3.1    22.7    +      -       +      +
    631A  ASP*     3.2    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 628 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    594A  VAL*     5.7     1.3    -      -       +      -
    626A  ARG      4.6     1.3    -      -       -      +
    627A  THR*     1.4    89.9    -      -       -      +
    629A  LEU*     1.3    64.1    +      -       -      +
    631A  ASP*     3.2    11.8    +      -       +      +
    632A  GLN*     2.9    42.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 629 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    588A  VAL*     4.2     8.7    -      -       +      -
    592A  ALA*     3.5    26.9    -      -       +      +
    594A  VAL*     3.6    40.4    -      -       +      +
    597A  VAL*     3.8    25.7    -      -       +      +
    598A  THR*     5.0     0.7    +      -       -      -
    620A  ILE*     6.2     0.7    -      -       +      -
    624A  LEU*     4.1    25.1    -      -       +      -
    627A  THR*     3.2    12.2    -      -       +      +
    628A  PRO*     1.3    79.6    -      -       -      +
    630A  PHE*     1.3    64.1    +      -       -      +
    632A  GLN*     3.4     6.2    +      -       -      +
    633A  ILE*     3.3    33.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 630 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    620A  ILE*     3.7    38.6    -      -       +      -
    624A  LEU*     3.1    26.2    -      -       +      +
    625A  LEU*     3.8    31.0    -      -       +      +
    627A  THR*     3.1    11.5    -      -       +      +
    629A  LEU*     1.3    78.4    -      -       -      +
    631A  ASP*     1.3    77.1    +      -       -      +
    633A  ILE*     3.2    11.1    +      -       +      +
    634A  ILE*     3.2    46.4    +      -       +      +
    650A  PHE*     4.2    26.7    -      +       -      -
    675A  ILE*     4.9     2.9    -      -       +      -
    677A  VAL*     6.3     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 631 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    625A  LEU      5.4     0.9    -      -       -      +
    627A  THR      3.2    11.4    +      -       -      +
    628A  PRO*     3.2    15.1    +      -       +      +
    630A  PHE*     1.3    89.2    -      -       -      +
    632A  GLN*     1.3    57.9    +      -       +      +
    634A  ILE*     3.1    19.2    -      -       +      +
    635A  ASP*     2.9    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 632 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    594A  VAL*     3.8    29.9    -      -       -      +
    598A  THR*     3.8    19.0    +      -       +      +
    628A  PRO*     2.9    42.6    +      -       -      +
    629A  LEU*     3.8     5.3    -      -       -      +
    630A  PHE      3.3     0.2    -      -       -      -
    631A  ASP*     1.3    77.5    -      -       +      +
    633A  ILE*     1.3    56.4    +      -       -      +
    635A  ASP*     3.6     9.0    -      -       +      +
    636A  MSE      2.9    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 633 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    588A  VAL*     4.6    12.6    -      -       +      -
    597A  VAL*     3.5    32.8    -      -       +      -
    598A  THR*     4.5     8.3    -      -       -      +
    601A  VAL*     4.7     5.2    -      -       +      -
    618A  LEU*     4.0    17.3    -      -       +      -
    620A  ILE*     4.6    16.2    -      -       +      -
    629A  LEU*     3.3    24.7    +      -       +      +
    630A  PHE*     3.2    13.6    +      -       +      +
    631A  ASP      3.1     0.8    -      -       -      -
    632A  GLN*     1.3    71.9    -      -       -      +
    634A  ILE*     1.3    70.5    +      -       +      +
    636A  MSE      3.0    13.9    +      -       +      +
    637A  LEU*     2.8    42.0    +      -       +      +
    675A  ILE*     5.4     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 634 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    630A  PHE*     3.2    38.9    +      -       +      +
    631A  ASP*     3.1    35.2    -      -       +      +
    633A  ILE*     1.3    79.0    -      -       +      +
    635A  ASP*     1.4    61.7    +      -       +      +
    637A  LEU*     3.4    16.4    +      -       +      +
    638A  ARG*     2.8    35.8    +      -       +      +
    644A  ILE*     5.6     7.0    -      -       +      -
    650A  PHE*     6.2     0.7    -      -       +      -
    675A  ILE*     5.3     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 635 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    631A  ASP      2.9    18.2    +      -       -      +
    632A  GLN*     3.6    10.3    -      -       +      +
    634A  ILE*     1.4    80.8    -      -       +      +
    636A  MSE      1.3    57.5    +      -       -      +
    638A  ARG*     3.1     7.0    +      -       -      +
    639A  VAL*     2.9    30.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 636 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    598A  THR*     3.4    37.0    -      -       +      +
    601A  VAL*     3.6    22.4    -      -       +      -
    602A  ARG*     3.3    70.4    -      -       +      +
    606A  CYS*     4.7     2.0    -      -       -      -
    632A  GLN      2.9    10.0    +      -       -      +
    633A  ILE*     3.7     7.4    -      -       +      +
    635A  ASP*     1.3    74.6    -      -       -      +
    637A  LEU*     1.3    76.4    +      -       +      +
    639A  VAL*     3.1     9.6    +      -       +      +
    640A  GLU*     2.9    32.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 637 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    601A  VAL*     4.4     4.5    -      -       +      -
    605A  LYS*     5.2     4.9    -      -       +      -
    606A  CYS*     5.7     0.2    -      -       -      -
    633A  ILE*     2.8    33.1    +      -       +      +
    634A  ILE*     3.5    13.2    -      -       -      +
    636A  MSE      1.3    93.6    -      -       +      +
    638A  ARG*     1.4    57.1    +      -       -      +
    640A  GLU*     3.5     2.4    +      -       -      -
    641A  GLN      3.2     5.4    +      -       -      -
    642A  VAL*     2.8    51.8    +      -       +      +
    644A  ILE*     3.8    15.0    -      -       +      -
    673A  LEU*     3.8    23.6    -      -       +      -
    675A  ILE*     3.7    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 638 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    634A  ILE      2.8    19.9    +      -       -      +
    635A  ASP*     3.1     4.9    +      -       -      +
    637A  LEU*     1.4    71.9    -      -       -      +
    639A  VAL*     1.4    63.2    +      -       -      +
    640A  GLU      3.1     0.2    -      -       -      -
    641A  GLN*     3.0    26.1    +      -       -      +
    642A  VAL      5.3     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 639 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    602A  ARG*     6.2     0.9    -      -       -      +
    635A  ASP*     2.9    15.8    +      -       +      +
    636A  MSE      3.1    11.0    +      -       +      +
    638A  ARG*     1.4    79.6    -      -       -      +
    640A  GLU*     1.3    72.3    +      -       -      +
    641A  GLN*     3.1    13.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 640 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    602A  ARG*     4.0    24.8    +      -       +      +
    606A  CYS*     3.0    43.5    -      -       +      +
    636A  MSE      2.9    18.5    +      -       -      +
    637A  LEU      4.1     3.8    -      -       -      +
    638A  ARG      3.1     0.4    -      -       -      -
    639A  VAL*     1.3    89.5    -      -       -      +
    641A  GLN*     1.4    67.7    +      -       -      +
    642A  VAL*     3.3    10.7    +      -       +      +
    671A  LEU*     4.1    12.4    -      -       +      +
----------------------------------------------------------
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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