Contacts of the strand formed by residues 627 - 635 (chain A) in PDB entry 2XRG


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 MET 627 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    621A  TYR*     3.6    11.2    -      -       -      -
    622A  SER*     3.1    25.9    +      -       -      -
    625A  PHE*     3.6    23.8    -      -       +      +
    626A  LEU*     1.3    79.0    -      -       -      +
    628A  PRO*     1.4    78.4    -      -       +      +
    629A  LEU*     5.2     0.5    -      -       -      +
    664A  GLN*     3.6    11.4    -      -       -      +
    701A  MET      4.3     2.7    -      -       -      +
    702A  VAL*     4.3     5.6    -      -       +      -
    703A  PRO*     3.8    26.5    -      -       +      -
    736A  PRO*     4.0    23.1    -      -       +      -
    738A  PHE*     4.3    11.0    -      -       +      -
    761A  ILE*     4.3     7.0    -      -       +      -
    762A  PRO*     3.4    33.2    -      -       +      +
    764A  PRO*     4.5     2.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 628 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    619A  SER*     4.2     9.6    -      -       -      +
    620A  GLY      3.5    15.3    -      -       -      +
    621A  TYR*     3.8     6.3    -      -       +      -
    627A  MET*     1.4    92.9    -      -       +      +
    629A  LEU*     1.3    60.9    +      -       -      +
    630A  TRP      3.7    17.0    -      -       -      +
    631A  THR*     4.2     4.3    -      -       -      +
    680A  LEU*     3.6    25.1    -      -       +      -
    699A  THR      3.4    26.0    -      -       -      +
    700A  ASN*     5.1     4.5    -      -       -      +
    701A  MET      4.7     1.8    -      -       -      +
    702A  VAL*     4.6     5.4    -      -       +      -
    736A  PRO*     3.3    25.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 629 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    603A  VAL*     4.5    20.0    -      -       +      -
    605A  TYR*     3.4    26.0    -      -       +      +
    607A  THR*     5.3     4.0    -      -       +      -
    609A  TYR*     4.4    16.8    -      -       +      -
    620A  GLY      3.0    19.5    +      -       -      +
    622A  SER*     3.9    27.4    -      -       -      +
    625A  PHE*     5.0     8.7    -      -       +      -
    627A  MET      5.2     0.2    -      -       -      +
    628A  PRO*     1.3    73.7    -      -       -      +
    630A  TRP*     1.4    61.6    +      -       +      +
    736A  PRO*     3.9    14.6    -      -       +      +
    738A  PHE*     6.6     0.2    -      -       +      -
    768A  TYR*     2.9    27.5    +      -       -      -
    833A  THR*     5.2     2.6    -      -       -      +
    835A  LEU*     4.0    15.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 630 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    596A  LEU*     3.9    30.3    -      -       +      -
    600A  ARG*     4.6     5.8    -      -       +      -
    601A  PRO*     3.6    41.6    +      -       +      +
    603A  VAL*     5.4     0.4    -      -       -      +
    609A  TYR*     5.0     7.4    -      +       -      -
    611A  ILE*     4.2    16.8    -      -       +      -
    618A  GLU*     3.7    26.0    -      -       -      -
    619A  SER*     3.4    13.5    -      -       -      -
    620A  GLY*     3.3    41.6    +      -       -      -
    628A  PRO*     3.4     3.8    -      -       -      +
    629A  LEU*     1.4    93.0    -      -       +      +
    631A  THR*     1.4    70.5    +      -       -      +
    632A  SER*     4.1     9.0    -      -       -      -
    680A  LEU*     5.3     0.2    -      -       -      -
    733A  ILE*     4.3    13.0    -      -       +      -
    734A  SER      3.7     9.9    -      -       -      -
    735A  GLY*     4.7     0.4    -      -       -      -
    768A  TYR*     3.5    11.9    -      -       -      +
    835A  LEU*     4.0    17.4    -      -       +      +
    837A  PHE*     5.3     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 631 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    617A  PHE*     4.2    29.6    -      -       +      -
    618A  GLU      3.4    11.2    -      -       -      +
    619A  SER*     3.8     8.9    -      -       -      -
    628A  PRO*     4.2     2.9    -      -       -      +
    630A  TRP*     1.4    79.2    +      -       -      +
    632A  SER*     1.4    60.9    +      -       -      +
    633A  TYR*     4.4     9.6    -      -       +      -
    680A  LEU*     3.6    29.1    -      -       +      +
    681A  PHE*     4.5    13.5    -      -       +      +
    700A  ASN*     4.7     2.7    +      -       -      +
    732A  VAL      3.4     2.3    -      -       -      +
    733A  ILE*     3.3    22.4    -      -       -      -
    734A  SER*     3.2    17.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 632 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    595A  HIS*     2.6    32.4    +      -       -      +
    596A  LEU*     3.8    27.1    -      -       -      +
    617A  PHE*     3.6     2.3    -      -       -      -
    618A  GLU*     2.8    36.2    +      -       -      -
    630A  TRP*     4.1     6.0    -      -       -      -
    631A  THR*     1.4    73.5    -      -       -      +
    633A  TYR*     1.4    63.3    +      -       -      +
    731A  ASN*     4.1     4.2    +      -       -      -
    732A  VAL      3.4     3.7    +      -       -      -
    733A  ILE*     3.6    20.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 633 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    595A  HIS*     3.8     7.2    -      -       -      -
    616A  ASP      3.5    21.1    -      -       -      +
    617A  PHE*     4.3     0.4    -      -       +      -
    631A  THR*     4.4    11.7    -      -       +      -
    632A  SER*     1.4    79.6    +      -       -      +
    634A  THR*     1.3    64.8    +      -       -      +
    635A  ILE*     3.7    29.8    -      -       +      -
    680A  LEU      4.1    15.7    +      -       -      -
    681A  PHE*     3.6    26.7    -      +       +      -
    682A  PRO*     3.6    23.8    -      -       +      +
    715A  PHE*     5.2     3.8    -      -       -      -
    716A  GLN*     4.7     3.3    +      -       -      +
    720A  VAL*     4.9    10.2    -      -       +      +
    730A  VAL      4.2     0.3    -      -       -      +
    731A  ASN*     3.8     2.6    +      -       -      -
    732A  VAL*     3.0    70.4    +      -       +      +
    734A  SER*     4.4     6.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 634 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    594A  ARG*     2.9    59.7    +      -       -      +
    595A  HIS*     3.6    15.7    +      -       -      -
    597A  LEU*     3.9    14.2    -      -       +      +
    633A  TYR*     1.3    73.9    -      -       -      +
    635A  ILE*     1.4    68.9    +      -       -      +
    636A  SER      4.3     0.2    -      -       -      -
    730A  VAL      3.6    13.2    -      -       -      +
    731A  ASN*     2.9    22.2    +      -       -      -
    781A  ALA*     5.3     1.8    -      -       +      -
    782A  ASP*     5.6     0.7    -      -       +      -
   1869A  IOD      4.4    13.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 635 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    633A  TYR*     3.7    32.0    +      -       +      -
    634A  THR*     1.4    78.5    -      -       -      +
    636A  SER*     1.3    71.9    +      -       -      +
    639A  ALA*     4.2    14.4    -      -       +      -
    681A  PHE*     5.4     1.8    -      -       +      -
    682A  PRO*     5.2     0.2    -      -       +      -
    685A  LEU*     3.7    49.8    -      -       +      +
    720A  VAL*     3.8    15.5    -      -       +      -
    721A  LYS*     4.6     5.2    -      -       +      +
    724A  ALA*     3.7    15.4    -      -       +      +
    729A  GLY*     3.4     1.1    -      -       -      -
    730A  VAL*     3.0    35.6    +      -       +      +
    732A  VAL*     5.6     1.3    -      -       +      +
----------------------------------------------------------
 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