Contacts of the strand formed by residues 4 - 14 (chain A) in PDB entry 1RS2


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 THR 4 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  GLN      3.8     9.8    +      -       -      +
      3A  ASP*     1.3    85.7    -      -       -      +
      5A  ILE*     1.3    64.5    +      -       -      +
      6A  PHE*     4.5    15.3    -      -       -      -
     34A  THR*     3.8    25.5    -      -       +      +
     35A  LEU      3.2    15.0    -      -       -      +
     36A  LYS*     4.8     3.4    -      -       +      -
     37A  VAL      4.6     0.9    -      -       -      +
     39A  LEU*     3.5    17.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 5 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  THR*     1.3    79.0    -      -       -      +
      6A  PHE*     1.3    70.4    +      -       -      +
      7A  LEU*     5.1     3.8    -      -       +      -
     33A  VAL      3.8     0.3    -      -       -      +
     34A  THR*     3.4     3.1    -      -       -      +
     35A  LEU*     2.9    45.8    +      -       +      +
     37A  VAL*     3.9    12.8    -      -       +      -
     39A  LEU*     3.7    19.5    -      -       +      -
     51A  THR*     3.8    13.2    -      -       -      +
     52A  VAL*     3.7    38.4    -      -       +      +
     54A  TYR*     3.3    38.6    -      -       +      -
     57A  VAL*     5.7     1.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 6 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  THR*     4.5    14.4    -      -       -      -
      5A  ILE*     1.3    86.6    -      -       -      +
      7A  LEU*     1.3    69.5    +      -       -      +
      8A  LYS*     3.5    33.7    -      -       +      -
     33A  VAL      3.3     8.7    -      -       -      +
     34A  THR*     4.7    11.0    -      -       +      +
     54A  TYR*     4.8     7.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 7 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  ILE*     5.1     4.9    -      -       +      -
      6A  PHE*     1.3    78.3    -      -       -      +
      8A  LYS*     1.3    61.0    +      -       -      +
     10A  MET*     3.7    29.8    -      -       +      +
     31A  VAL      3.9     2.4    -      -       -      +
     32A  ASP*     3.5     3.5    -      -       -      -
     33A  VAL*     2.9    40.4    +      -       +      +
     35A  LEU*     5.5     0.9    -      -       +      -
     54A  TYR*     4.0    22.0    -      -       +      +
     57A  VAL*     3.4    34.8    -      -       +      -
     58A  PHE*     3.7    33.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 8 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  PHE*     3.5    36.9    -      -       +      -
      7A  LEU*     1.3    73.7    -      -       -      +
      9A  GLY*     1.3    64.6    +      -       -      +
     10A  MET*     3.3     5.9    +      -       -      +
     32A  ASP*     3.3    23.8    +      -       +      +
     33A  VAL      5.8     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 9 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  LYS*     1.3    72.5    -      -       -      +
     10A  MET*     1.3    66.7    +      -       -      +
     11A  ARG*     3.0    27.0    +      -       -      -
     30A  LYS*     4.0    21.8    -      -       -      -
     31A  VAL      3.5     2.6    +      -       -      -
     32A  ASP*     2.8    16.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 10 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  LEU*     3.7    37.5    -      -       +      +
      8A  LYS      3.3     2.6    -      -       -      +
      9A  GLY*     1.3    78.3    -      -       -      +
     11A  ARG*     1.3    56.6    +      -       -      +
     12A  PHE*     3.7    16.8    -      -       +      -
     30A  LYS*     3.2     2.4    -      -       -      -
     31A  VAL*     2.5    67.3    +      -       +      +
     33A  VAL*     3.7    19.1    -      -       +      -
     58A  PHE*     3.6    32.5    -      -       +      -
     61A  VAL*     3.9    18.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 11 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  GLY*     3.0    20.5    +      -       -      +
     10A  MET*     1.3    76.8    -      -       -      +
     12A  PHE*     1.3    73.1    +      -       -      +
     28A  ILE*     4.0    25.8    -      -       +      +
     29A  PHE      3.1     5.6    -      -       -      +
     30A  LYS*     3.4    50.2    -      -       -      +
     58A  PHE*     5.9     0.2    -      -       -      -
     66A  GLU*     5.0     0.3    -      -       -      +
    101A  GLU*     4.3    16.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 12 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  MET*     3.7    23.6    -      -       +      -
     11A  ARG*     1.3    83.0    -      -       -      +
     13A  TYR*     1.3    60.9    +      -       -      +
     14A  GLY      3.7     0.4    -      -       -      +
     27A  GLN      3.5     0.7    -      -       -      +
     28A  ILE*     3.2     7.1    -      -       -      -
     29A  PHE*     2.6    47.8    +      -       +      +
     31A  VAL*     4.3     5.2    -      -       +      -
     58A  PHE*     3.7    35.2    -      +       -      -
     61A  VAL*     3.7    28.9    -      -       +      -
     62A  LYS*     3.8    21.1    -      -       +      -
     65A  MET*     3.4    35.2    -      -       +      -
     66A  GLU*     3.1    32.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 13 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  PHE*     1.3    73.9    -      -       -      +
     14A  GLY*     1.3    58.8    +      -       -      +
     15A  TYR*     4.0    23.7    -      +       -      -
     25A  ILE*     3.4    27.1    +      -       -      +
     26A  GLY*     3.4    10.6    +      -       -      -
     27A  GLN*     3.2    32.3    -      -       -      -
     28A  ILE*     3.6    25.4    -      -       +      +
     66A  GLU*     4.1    17.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 14 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  PHE      3.6     3.4    +      -       -      -
     13A  TYR*     1.3    75.1    -      -       -      +
     15A  TYR*     1.3    67.8    -      -       -      -
     16A  HIS*     3.5     5.6    -      -       -      -
     26A  GLY*     3.5     0.9    -      -       -      -
     27A  GLN*     3.1    27.5    +      -       -      +
     29A  PHE*     3.2    17.4    -      -       -      -
     65A  MET      4.0    17.5    -      -       -      -
     66A  GLU*     5.4     0.9    -      -       -      -
     67A  GLY      6.0     0.4    -      -       -      -
----------------------------------------------------------
 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