Contacts of the strand formed by residues 722 - 726 (chain C) in PDB entry 6RI7


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 GLY 722 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    721C  GLY*     1.3    75.5    -      -       -      -
    723C  VAL*     1.3    68.0    +      -       -      +
    734C  ILE*     4.5     1.3    -      -       -      +
    735C  LYS      3.4    11.0    -      -       -      -
    737C  ASN*     3.6    19.0    +      -       -      +
    776C  PRO*     3.6     1.7    -      -       -      +
    777C  VAL*     2.9    44.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 723 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722C  GLY*     1.3    80.6    -      -       -      +
    724C  VAL*     1.3    78.2    +      -       -      +
    734C  ILE*     3.1     6.8    -      -       -      +
    735C  LYS*     2.8    41.1    +      -       +      +
    736C  VAL      6.3     0.2    -      -       -      -
    737C  ASN*     4.2    13.2    -      -       -      +
    774C  GLY*     4.7     3.8    -      -       -      -
    775C  GLU      3.5    17.3    -      -       -      +
    776C  PRO*     4.7     8.5    -      -       +      -
    777C  VAL*     4.8     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 724 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    723C  VAL*     1.3    84.4    -      -       -      +
    725C  GLN*     1.3    67.2    +      -       -      +
    726C  TYR      4.2     1.1    -      -       -      +
    727C  VAL*     3.8    15.9    -      -       +      -
    734C  ILE*     3.5    19.7    -      -       +      +
    735C  LYS*     5.8     0.2    -      -       -      +
    771C  VAL*     4.5    13.0    -      -       +      -
    772C  SER      3.3    25.4    -      -       -      +
    773C  LEU*     3.6     6.7    -      -       -      -
    774C  GLY*     3.4    18.9    -      -       -      +
    775C  GLU*     2.8    35.4    +      -       +      +
    777C  VAL*     4.4    12.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 725 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    723C  VAL      3.4     1.6    +      -       -      +
    724C  VAL*     1.3    78.1    -      -       -      +
    726C  TYR*     1.3    68.4    +      -       +      +
    727C  VAL      4.2     0.5    +      -       -      -
    733C  VAL*     3.2    15.5    +      -       +      +
    735C  LYS*     4.5    32.3    +      -       +      +
    748C  ILE*     4.8    14.6    -      -       -      +
    773C  LEU*     4.4    19.1    -      -       -      +
    774C  GLY      5.4     0.2    -      -       -      +
    966C  ILE*     5.1    11.7    -      -       -      +
    969C  ALA*     5.9     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 726 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  GLU*     3.6    14.0    +      -       -      +
     73A  GLY*     4.8     2.6    +      -       -      -
    134A  THR*     3.6    24.1    +      -       +      -
    135A  ASP*     5.3     7.3    -      -       +      +
    724C  VAL*     4.8     0.9    -      -       -      -
    725C  GLN*     1.3    85.5    -      -       +      +
    727C  VAL*     1.3    81.1    +      -       -      +
    728C  ASP*     3.0    31.9    +      -       +      -
    731C  ARG*     4.3    29.8    -      -       +      -
    732C  ILE*     3.4     6.2    -      -       -      +
    733C  VAL*     2.9    50.0    +      -       +      +
    773C  LEU*     6.4     0.2    -      -       +      -
    966C  ILE*     5.9     9.6    -      -       +      -
----------------------------------------------------------
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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