Contacts of the strand formed by residues 601 - 606 (chain A) in PDB entry 1O94


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 601 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    598A  GLU*     2.9    47.5    +      -       +      +
    599A  PRO      3.2     8.7    +      -       -      +
    600A  GLY*     1.3    81.4    -      -       -      +
    602A  MET*     1.3    63.8    +      -       -      +
    632A  TRP*     3.5    35.4    -      -       +      -
    633A  ILE      3.2    14.1    -      -       -      +
    634A  GLU*     4.5     6.1    -      -       +      -
    635A  PHE*     3.3     8.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 602 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    532A  VAL*     3.5    33.4    -      -       +      -
    534A  LEU*     4.1    15.5    -      -       +      -
    559A  VAL*     4.8     2.2    -      -       +      -
    594A  CYS*     3.9    29.2    -      -       +      -
    596A  ARG      3.5    11.9    -      -       -      +
    597A  ILE*     4.1     5.8    -      -       +      -
    601A  ARG*     1.3    76.1    -      -       -      +
    603A  GLU*     1.3    60.8    +      -       -      +
    604A  ILE*     3.9    13.7    -      -       +      -
    631A  ARG      3.8     0.3    -      -       -      +
    632A  TRP*     3.2     7.7    -      -       -      -
    633A  ILE*     2.8    51.7    +      -       +      +
    635A  PHE*     3.8    16.2    -      -       +      -
    638A  LEU*     3.7    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 603 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    594A  CYS*     3.3     7.1    -      -       -      -
    595A  SER*     2.7    53.3    +      -       -      +
    596A  ARG*     2.9    17.4    +      -       -      +
    602A  MET*     1.3    72.8    -      -       -      +
    604A  ILE*     1.3    61.3    +      -       -      +
    630A  HIS*     3.8    28.2    +      -       +      +
    631A  ARG*     3.3    13.0    -      -       -      +
    632A  TRP*     3.5    30.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 604 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    559A  VAL*     4.1    12.1    -      -       +      -
    589A  LEU*     3.9    18.6    -      -       +      -
    592A  HIS*     4.1    13.5    -      -       +      -
    593A  PHE      3.1    14.1    -      -       -      +
    602A  MET*     3.9    26.2    +      -       +      -
    603A  GLU*     1.3    78.1    -      -       -      +
    605A  TYR*     1.3    62.7    +      -       -      +
    629A  SER      3.8     1.1    -      -       -      +
    630A  HIS*     3.1     7.5    -      -       -      +
    631A  ARG*     2.7    75.7    +      -       +      +
    633A  ILE*     3.8    26.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 605 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  LEU*     4.6     6.3    -      -       +      +
    500A  THR*     4.7    10.4    -      -       -      +
    592A  HIS*     2.9    32.0    -      -       -      -
    593A  PHE*     2.9    50.8    +      -       +      +
    594A  CYS      3.8    12.6    -      -       -      -
    595A  SER*     3.9    12.6    -      -       -      -
    604A  ILE*     1.3    77.4    -      -       -      +
    606A  ASN*     1.3    75.3    +      -       -      +
    607A  ILE*     4.3    18.8    -      -       +      -
    627A  ASN*     3.8    11.7    -      -       -      +
    629A  SER*     3.7    12.6    -      -       -      +
    630A  HIS*     3.8    29.6    -      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 606 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    591A  ASP*     3.4    13.9    +      -       -      +
    592A  HIS*     3.6    26.2    +      -       -      +
    605A  TYR*     1.3    72.0    -      -       -      +
    607A  ILE*     1.3    64.5    +      -       -      +
    608A  TRP*     2.7    40.1    +      -       -      +
    609A  GLY      3.0     8.6    +      -       -      +
    627A  ASN*     3.0    21.7    +      -       -      -
    629A  SER*     2.9    26.3    +      -       -      +
    582B  HIS*     4.1    24.0    -      -       -      +
----------------------------------------------------------
 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