Contacts of the helix formed by residues 324 - 336 (chain A) in PDB entry 4HRE


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 324 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  GLN      4.6     2.9    -      -       -      +
    321A  GLN      5.4     5.4    -      -       -      +
    322A  ASP      5.8     0.9    -      -       -      -
    323A  THR*     1.3    82.3    -      -       -      +
    325A  GLY*     1.3    68.3    +      -       -      +
    327A  TYR*     3.8     9.9    -      -       -      +
    328A  GLN*     3.3    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324A  LYS*     1.3    75.4    -      -       -      +
    326A  ASP*     1.3    65.5    +      -       -      -
    327A  TYR      4.3     0.2    -      -       -      -
    328A  GLN*     3.3     8.2    +      -       -      +
    329A  LYS*     3.3    31.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  GLU*     2.8    37.2    -      -       -      +
     54A  VAL*     3.7    34.3    +      -       -      +
     57A  VAL*     4.3     9.7    -      -       -      +
     95A  LEU*     3.5    15.8    -      -       +      +
    325A  GLY*     1.3    69.4    -      -       -      -
    327A  TYR*     1.3    66.1    +      -       -      +
    329A  LYS*     3.4    10.1    +      -       -      +
    330A  ALA*     3.1    23.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  HIS*     3.5    37.2    -      +       +      -
     95A  LEU*     4.1    19.9    -      -       +      +
     98A  VAL*     3.6    29.8    -      -       +      -
    285A  ASP*     3.3    38.3    +      -       -      +
    288A  LEU*     4.0     4.3    -      -       -      +
    289A  ILE*     3.3    11.1    -      -       +      +
    323A  THR*     3.7    25.1    -      -       +      -
    324A  LYS      3.8     8.7    -      -       -      +
    326A  ASP*     1.3    77.8    -      -       -      +
    328A  GLN*     1.3    61.9    +      -       -      +
    330A  ALA*     3.2     4.9    +      -       -      +
    331A  LEU*     3.1    42.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 328 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319A  ILE*     4.3     3.6    -      -       +      +
    320A  GLN*     2.9    30.9    +      -       -      +
    323A  THR*     2.5    47.9    +      -       -      +
    324A  LYS*     3.3    19.6    +      -       -      +
    325A  GLY      3.3     8.1    +      -       -      +
    326A  ASP      3.3     0.6    -      -       -      -
    327A  TYR*     1.3    79.2    -      -       -      +
    329A  LYS*     1.3    89.2    +      -       -      +
    331A  LEU*     3.0     5.8    +      -       -      +
    332A  LEU*     2.9    42.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 329 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  VAL*     5.2     3.6    -      -       +      -
    325A  GLY*     3.3    24.5    +      -       -      +
    326A  ASP*     3.8    10.8    -      -       -      +
    327A  TYR      3.4     0.2    -      -       -      -
    328A  GLN*     1.3   101.4    -      -       +      +
    330A  ALA*     1.3    62.1    +      -       -      +
    332A  LEU*     3.2    12.4    +      -       +      +
    333A  TYR*     3.0    42.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 330 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  VAL*     4.1    17.1    -      -       +      +
     61A  THR*     4.2    10.1    -      -       +      +
     95A  LEU*     4.0    17.9    -      -       +      -
     98A  VAL*     4.4    15.3    -      -       +      -
     99A  ILE*     5.1     0.9    -      -       +      -
    326A  ASP      3.1    12.7    +      -       -      +
    327A  TYR      3.3    10.1    -      -       -      +
    328A  GLN      3.1     0.2    -      -       -      -
    329A  LYS*     1.3    75.9    -      -       -      +
    331A  LEU*     1.3    63.2    +      -       +      +
    332A  LEU      3.2     0.2    +      -       -      -
    333A  TYR*     3.2     7.6    +      -       -      +
    334A  LEU*     3.1    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 331 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  VAL*     4.0    19.3    -      -       +      -
    288A  LEU*     3.5    32.3    -      -       +      -
    289A  ILE*     4.5     7.4    -      -       +      -
    292A  MET*     3.7    26.0    -      -       +      +
    319A  ILE*     3.5    29.1    -      -       +      +
    323A  THR*     4.1     8.5    -      -       +      +
    327A  TYR*     3.1    41.7    +      -       +      +
    328A  GLN      3.0     2.9    +      -       -      +
    330A  ALA*     1.3    77.5    -      -       -      +
    332A  LEU*     1.3    57.6    +      -       -      +
    334A  LEU*     3.3     7.6    +      -       +      +
    335A  CYS*     2.8    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 332 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316A  TYR*     3.4    61.4    -      -       +      +
    319A  ILE*     3.7    22.7    -      -       +      -
    320A  GLN*     4.2    13.2    -      -       +      +
    328A  GLN*     2.9    44.0    +      -       +      +
    329A  LYS*     3.5    16.6    -      -       +      +
    331A  LEU*     1.3    74.8    -      -       -      +
    333A  TYR*     1.3    66.0    +      -       -      +
    335A  CYS*     3.0    18.2    +      -       +      +
    336A  GLY*     3.2     6.8    +      -       -      -
    337A  GLY      4.5     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 333 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  SER*     4.6     5.4    +      -       -      +
     27A  VAL*     4.9     2.1    -      -       -      +
     57A  VAL*     4.3    11.2    -      -       +      -
     58A  ASN*     3.1    30.3    +      -       +      +
     61A  THR*     3.1    42.7    -      -       -      +
     62A  ASN*     3.5    19.7    -      -       -      +
    329A  LYS*     3.0    40.0    +      -       +      +
    330A  ALA*     3.2     3.8    +      -       -      +
    332A  LEU*     1.3    75.1    -      -       +      +
    334A  LEU*     1.3    64.4    +      -       -      +
    335A  CYS      3.4     0.3    +      -       -      -
    336A  GLY*     3.4    12.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 334 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  SER*     2.4    30.5    +      -       -      -
     27A  VAL*     4.0    19.5    -      -       +      -
     61A  THR*     4.5    11.2    -      -       +      +
     68A  ARG*     4.2     6.1    -      -       -      +
     98A  VAL*     4.2    13.5    -      -       +      -
    102A  LEU*     3.6    46.2    -      -       +      -
    292A  MET*     3.9    32.4    -      -       +      +
    293A  VAL*     4.2     6.3    -      -       +      -
    296A  SER*     4.3     8.1    -      -       -      -
    300A  MET*     3.9     5.0    -      -       -      +
    330A  ALA      3.1    15.6    +      -       -      +
    331A  LEU*     3.6     9.0    -      -       +      +
    332A  LEU      3.2     0.2    -      -       -      -
    333A  TYR*     1.3    76.8    -      -       -      +
    335A  CYS*     1.3    55.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 335 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  SER*     3.2     9.5    -      -       -      -
    292A  MET*     3.5    14.3    -      -       +      +
    300A  MET*     3.6     1.5    -      -       -      +
    304A  ARG*     3.1    39.1    +      -       -      -
    315A  LEU*     4.2    12.6    -      -       -      -
    316A  TYR*     4.0    26.9    -      -       +      -
    319A  ILE*     4.0     4.3    -      -       +      -
    331A  LEU      2.8    14.2    +      -       -      +
    332A  LEU*     3.0    19.0    +      -       +      +
    334A  LEU*     1.3    75.0    -      -       -      +
    336A  GLY*     1.3    54.2    +      -       -      +
    337A  GLY      3.6    20.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 336 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  SER*     3.9    17.7    -      -       -      +
    304A  ARG*     3.6    10.6    +      -       -      -
    332A  LEU      3.2     6.9    +      -       -      -
    333A  TYR*     3.4    12.0    +      -       -      -
    335A  CYS*     1.3    78.0    -      -       -      +
    337A  GLY*     1.3    56.4    +      -       -      +
----------------------------------------------------------
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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