Contacts of the strand formed by residues 283 - 289 (chain A) in PDB entry 1RS0


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 ARG 283 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243A  SER*     2.8    30.7    +      -       -      +
    244A  MET      2.9    10.3    +      -       -      +
    245A  ASN*     2.8    45.7    +      -       -      +
    246A  ILE      2.9    24.3    +      -       -      -
    281A  LYS      5.6     0.4    -      -       -      +
    282A  PRO*     1.3    74.1    -      -       -      +
    284A  TYR*     1.3    61.0    +      -       -      +
    299A  VAL*     3.2    28.6    -      -       +      +
    300A  SER*     5.4     0.7    -      -       -      +
    304A  SER*     3.7    15.0    -      -       -      +
    305A  SER*     4.3     9.0    -      -       -      +
    355A  THR*     4.3     3.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 284 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  ILE*     3.3    41.1    -      -       +      +
    248A  LEU*     4.1    15.9    -      -       +      -
    271A  LEU*     5.6     2.1    -      -       +      +
    272A  ILE*     3.6    44.8    +      -       +      +
    275A  VAL*     3.7    19.9    -      -       -      +
    282A  PRO*     3.5    30.2    -      -       +      +
    283A  ARG*     1.3    73.7    -      -       -      +
    285A  GLY*     1.3    60.1    +      -       -      +
    297A  VAL*     3.1    20.4    -      -       +      +
    299A  VAL*     3.6    10.5    +      -       -      -
    304A  SER*     2.9    29.7    +      -       -      +
    305A  SER*     5.2     1.1    -      -       -      -
    307A  ALA*     5.1     9.4    -      -       +      -
    310A  VAL*     4.0    27.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 285 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  ILE      3.0    10.2    +      -       -      -
    247A  TYR*     4.4     5.6    -      -       -      -
    248A  LEU*     2.7    35.7    +      -       -      +
    284A  TYR*     1.3    75.3    -      -       -      +
    286A  LEU*     1.3    58.2    +      -       -      -
    287A  VAL*     4.2     3.6    -      -       -      -
    297A  VAL      3.3     9.9    -      -       -      -
    299A  VAL*     4.2     3.3    -      -       -      +
    340A  MET*     4.1    17.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 286 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248A  LEU*     3.7    27.1    -      -       +      +
    250A  LEU*     5.7     2.0    -      -       +      -
    268A  LEU*     4.9     3.6    -      -       +      -
    285A  GLY*     1.3    74.2    -      -       -      +
    287A  VAL*     1.3    69.6    +      -       -      +
    288A  THR*     5.6     1.3    -      -       +      -
    295A  ILE*     3.7     0.3    -      -       -      -
    296A  TRP*     2.7    39.7    +      -       +      -
    297A  VAL*     3.0    27.2    +      -       +      +
    310A  VAL*     4.4    12.6    -      -       +      +
    313A  GLN*     4.5     4.7    -      -       +      -
    314A  LEU*     3.8    42.4    -      -       +      +
    317A  ILE*     3.7    29.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 287 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247A  TYR*     6.3     0.4    -      -       +      -
    248A  LEU      2.7    15.6    +      -       -      +
    249A  VAL*     3.3    22.1    -      -       +      -
    250A  LEU*     2.7    33.1    +      -       -      +
    285A  GLY      4.8     1.1    -      -       -      -
    286A  LEU*     1.3    82.9    -      -       -      +
    288A  THR*     1.3    72.6    +      -       -      +
    289A  TYR*     5.1     0.7    -      -       +      -
    293A  PRO*     3.9    11.9    -      -       +      -
    294A  LYS      3.3    12.3    -      -       -      +
    295A  ILE*     3.8    19.1    -      -       +      -
    296A  TRP*     4.3     0.2    -      -       -      -
    333A  ALA*     4.9     2.7    -      -       -      +
    336A  ALA*     4.7     6.3    -      -       +      -
    337A  VAL*     5.1     3.8    -      -       +      -
    340A  MET*     3.7    27.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 288 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  LEU*     3.1    17.7    -      -       +      +
    252A  GLY      5.4     0.9    -      -       -      -
    261A  PHE*     4.4    15.3    -      -       +      -
    286A  LEU*     5.6     1.6    -      -       +      -
    287A  VAL*     1.3    79.5    -      -       -      +
    289A  TYR*     1.3    65.6    +      -       -      +
    293A  PRO*     3.3     1.4    -      -       -      +
    294A  LYS*     2.8    28.6    +      -       -      +
    296A  TRP*     2.9    32.8    +      -       +      +
    317A  ILE*     4.2    24.9    -      -       +      -
    322A  HIS*     2.7    29.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 289 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249A  VAL*     3.8    21.5    -      -       +      -
    250A  LEU      3.0    15.8    +      -       -      -
    251A  ASP*     3.5    29.3    -      -       +      +
    252A  GLY      2.8    29.0    +      -       -      +
    287A  VAL*     5.1     0.2    -      -       +      -
    288A  THR*     1.3    78.3    -      -       -      +
    290A  ALA*     1.3    69.1    +      -       -      +
    292A  TYR      3.5     7.6    -      -       -      +
    293A  PRO*     3.9     8.5    -      -       +      -
    322A  HIS*     3.3    11.4    +      -       -      -
    328A  THR*     4.1    11.4    -      -       +      -
    329A  ASN      3.6    15.7    -      -       -      +
    330A  THR*     3.3    43.4    +      -       -      +
    333A  ALA*     3.5    17.0    -      -       +      -
    361A  LEU*     3.6     8.0    -      -       +      +
    363A  THR*     3.3    25.3    +      -       -      -
----------------------------------------------------------
 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