Contacts of the strand formed by residues 90 - 99 (chain B) in PDB entry 1XGS


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 PHE 90 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1B  MET*     3.5    46.0    -      -       +      -
      2B  ASP*     4.3    12.3    -      -       +      -
      5B  LYS*     3.6    36.1    -      -       +      -
      6B  LEU*     3.7    34.5    -      -       +      +
      9B  ALA*     3.5     7.5    -      -       -      +
     86B  HIS*     3.0     3.1    -      -       -      -
     87B  ILE      2.8    46.8    +      -       -      +
     88B  ASP      3.8     2.7    -      -       -      -
     89B  GLY*     1.3    75.8    -      -       -      +
     91B  ILE*     1.3    59.3    +      -       -      +
    156B  GLU      6.1     0.2    -      -       -      -
    157B  ARG*     3.8    46.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 91 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6B  LEU*     3.6    20.9    -      -       -      +
      9B  ALA*     4.4     2.0    -      -       -      -
     49B  ALA*     3.8    14.6    -      -       +      -
     85B  VAL      3.3     4.7    -      -       -      +
     86B  HIS*     3.7    13.7    -      -       +      -
     89B  GLY      3.4    16.3    +      -       -      +
     90B  PHE*     1.3    75.6    -      -       -      +
     92B  ALA*     1.3    76.2    +      -       -      +
     93B  ASP*     4.3     2.7    -      -       +      +
    155B  ILE*     3.7    18.8    -      -       +      +
    156B  GLU      4.0    14.3    +      -       -      +
    158B  TYR*     4.3     0.7    -      -       -      +
    159B  LYS      4.0     6.1    -      -       -      +
    160B  LEU*     4.0    30.7    -      -       +      +
    233B  LEU*     4.0    26.5    -      -       +      -
    282B  THR*     4.0    12.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 92 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6B  LEU      4.7     0.7    -      -       -      +
      9B  ALA*     3.4    11.4    -      -       +      +
     10B  GLY*     3.4    38.1    -      -       -      +
     13B  ALA*     3.9     5.9    -      -       +      +
     83B  VAL      3.9     0.7    -      -       -      +
     84B  GLY*     3.1     5.4    -      -       -      -
     85B  VAL      2.9    30.8    +      -       -      +
     91B  ILE*     1.3    75.4    -      -       -      +
     93B  ASP*     1.3    59.9    +      -       -      +
     94B  THR      4.2     0.2    -      -       -      -
    282B  THR*     3.9     6.5    -      -       -      -
    293B  THR*     4.5     2.2    -      -       -      +
    294B  THR*     3.9    10.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 93 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50B  PHE*     3.3    16.3    -      -       +      -
     82B  ASP*     3.0     6.6    -      -       -      +
     83B  VAL      3.6     2.9    -      -       -      -
     84B  GLY*     4.4     0.7    -      -       -      -
     91B  ILE      4.2     0.4    -      -       -      -
     92B  ALA*     1.3    73.7    -      -       -      +
     94B  THR*     1.3    62.9    +      -       -      +
    153B  HIS*     2.8    15.2    +      -       -      -
    155B  ILE*     4.0    14.6    -      -       +      -
    160B  LEU*     4.0     8.1    -      -       +      +
    185B  ALA*     4.2     1.1    -      -       +      +
    280B  GLU*     2.8    11.1    -      -       -      +
    281B  HIS      3.6     3.8    -      -       -      -
    282B  THR*     2.7    38.0    +      -       -      +
    294B  THR*     4.4     0.6    -      -       -      +
    296B   CO      2.0    27.8    +      -       -      -
    297B   CO      2.0    28.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 94 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13B  ALA*     3.9    22.2    -      -       +      +
     17B  ARG*     3.0    35.3    +      -       -      +
     82B  ASP*     3.0     3.8    -      -       -      +
     83B  VAL*     2.9    52.3    +      -       +      +
     93B  ASP*     1.3    75.9    +      -       -      +
     95B  ALA*     1.3    64.4    +      -       -      +
    280B  GLU*     2.7    25.6    +      -       -      -
    281B  HIS*     3.7     1.0    +      -       -      -
    294B  THR*     3.7    14.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 95 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  ARG*     5.0     5.0    +      -       -      -
     81B  ILE      3.2    13.2    -      -       -      +
     82B  ASP*     3.8     4.5    -      -       -      -
     94B  THR*     1.3    81.5    +      -       -      +
     96B  VAL*     1.3    62.5    +      -       -      +
    278B  GLN*     3.6    33.7    -      -       -      +
    279B  PHE*     3.5     5.7    -      -       -      -
    280B  GLU*     3.0    40.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 96 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  ARG*     4.2    20.2    -      -       +      -
     18B  GLU*     5.8     0.4    -      -       -      +
     21B  ILE*     3.8    38.4    -      -       +      -
     79B  LEU      3.7     0.2    -      -       -      +
     80B  LYS*     3.5     2.6    -      -       -      -
     81B  ILE*     2.9    38.8    +      -       +      -
     95B  ALA*     1.3    75.2    -      -       -      +
     97B  THR*     1.3    63.8    +      -       -      +
     98B  VAL*     4.4     7.2    -      -       +      -
    104B  GLU*     5.5     1.3    -      -       -      +
    112B  LYS*     5.8     0.7    -      -       -      +
    278B  GLN      3.6     5.7    -      -       -      +
    279B  PHE*     3.2    30.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 97 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78B  TYR*     4.3    14.4    -      -       +      -
     79B  LEU      3.3     9.2    -      -       -      +
     80B  LYS*     3.4    18.6    -      -       +      +
     96B  VAL*     1.3    79.2    -      -       -      +
     98B  VAL*     1.3    70.6    +      -       -      +
    104B  GLU*     4.4     2.3    -      -       -      +
    108B  MET*     3.2    33.9    -      -       +      +
    277B  ALA*     4.3     5.4    -      -       -      -
    278B  GLN      2.8    39.1    +      -       -      -
    279B  PHE*     3.7    21.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 98 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21B  ILE*     4.0    41.1    -      -       +      +
     24B  ALA*     4.7    16.4    -      -       +      +
     77B  ASP      3.3     1.2    -      -       -      +
     78B  TYR*     3.5     1.4    -      -       -      -
     79B  LEU*     2.8    41.4    +      -       +      +
     81B  ILE*     4.3    15.5    -      -       +      -
     96B  VAL*     4.4     4.5    -      -       +      -
     97B  THR*     1.3    78.4    -      -       -      +
     99B  ARG*     1.3    71.6    +      -       -      +
    100B  VAL*     3.5     8.1    +      -       -      +
    101B  GLY      5.3     0.7    -      -       -      +
    102B  MET      5.7     0.7    -      -       -      +
    108B  MET*     4.1     3.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 99 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76B  GLY*     4.0    19.3    +      -       -      +
     77B  ASP      3.2     5.4    -      -       -      +
     78B  TYR*     3.8    30.9    +      -       +      +
     98B  VAL*     1.3    74.1    -      -       -      +
    100B  VAL*     1.3    60.2    +      -       -      +
    101B  GLY      3.2     0.9    +      -       -      -
    102B  MET*     2.9    66.7    +      -       +      +
    103B  GLU*     2.9    37.6    +      -       -      +
    104B  GLU      4.7     0.2    +      -       -      -
    105B  ASP*     3.9    23.8    +      -       -      +
    108B  MET*     3.9    20.5    -      -       +      +
----------------------------------------------------------
 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