Contacts of the strand formed by residues 333 - 336 (chain C) in PDB entry 1V1H


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 ALA 333 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  SER*     3.3    26.9    +      -       -      +
    321A  ILE      3.8    16.6    -      -       -      +
    322A  LYS*     3.9     9.6    -      -       +      +
    329C  PHE*     3.2     5.9    -      -       -      -
    330C  ASP*     2.8    39.3    +      -       -      +
    331C  ASN*     3.1     7.4    +      -       +      +
    332C  THR*     1.3    77.2    -      -       -      +
    334C  ILE*     1.3    63.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 334 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319A  VAL*     4.1    11.9    -      -       +      -
    320A  SER      2.9    14.3    +      -       -      +
    321A  ILE*     4.3     3.1    -      -       +      -
    322A  LYS      2.8    27.4    +      -       -      -
    327A  LEU*     3.4    24.3    -      -       +      +
    334A  ILE*     4.3     8.7    -      -       +      -
    334B  ILE*     4.1    12.3    -      -       +      -
    319C  VAL*     4.0    27.1    -      -       +      -
    321C  ILE*     3.9    27.6    -      -       +      -
    327C  LEU*     4.4    18.6    -      -       +      -
    328C  ASN      3.7     7.2    -      -       -      +
    329C  PHE*     3.8    20.2    -      -       +      -
    333C  ALA*     1.3    70.3    -      -       -      +
    335C  ALA*     1.3    61.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 335 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322A  LYS*     4.1    13.7    -      -       +      -
    325A  SER*     3.8    23.6    -      -       -      +
    327A  LEU*     4.0     7.0    -      -       -      -
    327C  LEU*     3.5     6.0    -      -       -      +
    328C  ASN*     2.9    38.1    +      -       +      +
    330C  ASP*     4.1    12.6    -      -       +      +
    333C  ALA      3.5     0.2    +      -       -      -
    334C  ILE*     1.3    75.2    -      -       -      +
    336C  ILE*     1.3    67.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 336 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325A  SER*     3.3    16.5    +      -       -      +
    326A  GLY*     3.4    29.2    -      -       -      +
    327A  LEU*     3.8    20.8    -      -       +      +
    336A  ILE*     4.0    21.8    -      -       +      -
    357A  ILE*     6.2     0.2    -      -       +      -
    336B  ILE*     3.9     5.4    -      -       +      -
    357B  ILE*     3.7    22.7    -      -       +      -
    326C  GLY      3.6    10.8    -      -       -      +
    327C  LEU*     4.0    10.3    -      -       +      -
    328C  ASN*     5.9     0.2    -      -       -      -
    335C  ALA*     1.3    78.5    -      -       -      +
    337C  ASN*     1.3    63.0    +      -       -      +
    338C  ALA      3.5     1.6    +      -       -      +
    344C  PHE*     3.3    21.9    -      -       +      -
    357C  ILE*     3.8    26.0    -      -       +      -
----------------------------------------------------------
 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