Contacts of the strand formed by residues 34 - 37 (chain P) in PDB entry 1G3I


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 VAL 34 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3P  ILE*     4.6     0.9    -      -       +      -
     14P  VAL*     3.3    48.7    -      -       +      +
     15P  GLY      3.8     3.4    -      -       -      +
     16P  GLY*     3.7    17.3    -      -       -      +
     32P  ARG*     4.5     6.1    -      -       -      +
     33P  LYS*     1.3    84.1    -      -       -      +
     35P  ARG*     1.3    71.0    +      -       -      +
     43P  LEU*     5.1     0.9    -      -       +      -
     44P  ALA      3.1    17.5    -      -       -      +
     45P  GLY*     4.3     3.1    -      -       -      -
    168P  THR*     3.7    24.8    +      -       -      +
    170P  GLU*     4.3    23.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 35 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32P  ARG*     3.3    64.5    +      -       -      +
     33P  LYS      4.2     0.2    -      -       -      -
     34P  VAL*     1.3    81.3    -      -       -      +
     36P  ARG*     1.3    67.4    +      -       -      +
     43P  LEU*     4.0     2.9    -      -       -      +
     44P  ALA*     2.7    33.0    +      -       -      +
     46P  PHE*     4.1    10.5    -      -       +      -
     54P  PHE*     4.1    22.1    -      -       -      -
     57P  PHE*     3.5    33.8    -      -       +      -
    170P  GLU*     5.3     0.9    -      -       -      -
    440W  SER      4.1     9.3    +      -       -      -
    441W  ARG*     3.8    23.7    +      -       -      +
    442W  PHE*     4.7     1.0    -      -       -      +
    443W  ILE      3.1    22.8    +      -       -      -
    444W  LEU*     4.5     5.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 36 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35P  ARG*     1.3    78.6    -      -       -      +
     37P  LEU*     1.3    69.2    +      -       -      +
     39P  ASN      5.6     0.2    +      -       -      -
     40P  GLY*     4.2    26.4    +      -       -      +
     42P  VAL      3.8     4.4    +      -       -      +
     43P  LEU*     3.7    15.2    -      -       +      +
    170P  GLU*     3.6    33.4    +      -       +      +
    171P  GLU*     3.0    24.7    +      -       -      +
    172P  LEU*     3.5    24.4    -      -       -      +
    173P  PRO      4.9     4.9    +      -       -      -
    441W  ARG*     4.0    15.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 37 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35P  ARG      4.2     0.4    +      -       -      -
     36P  ARG*     1.3    80.8    -      -       -      +
     38P  TYR*     1.3    73.5    +      -       -      +
     39P  ASN      3.6     1.1    -      -       -      -
     40P  GLY      3.4     0.6    +      -       -      -
     41P  LYS      3.1     3.5    +      -       -      -
     42P  VAL*     2.9    41.9    +      -       +      +
     44P  ALA*     4.8     5.2    -      -       +      -
     57P  PHE*     3.8    35.0    -      -       +      +
     60P  PHE*     4.3    10.1    -      -       +      -
     61P  GLU*     3.1    61.0    -      -       +      +
     64P  LEU*     4.0    14.4    -      -       +      -
    441W  ARG*     4.2     7.4    -      -       -      +
----------------------------------------------------------
 Back to top of page


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