Contacts of the strand formed by residues 962 - 965 (chain A) in PDB entry 3LXK


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 HIS 962 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    881A  ASP*     2.6    40.1    +      -       +      -
    882A  PHE*     4.0    15.2    -      +       -      -
    929A  TYR*     4.2     1.6    -      -       -      -
    932A  GLN*     3.3     6.9    +      -       -      -
    958A  GLU*     2.8    66.9    +      -       +      +
    959A  SER*     3.0    21.2    +      -       -      +
    960A  GLU      3.7     0.4    -      -       -      -
    961A  ALA*     1.3    81.3    -      -       -      +
    963A  VAL*     1.3    73.7    +      -       -      +
    964A  LYS*     4.0     2.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 963 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    882A  PHE*     3.8    13.9    -      -       -      +
    910A  LEU*     4.0    22.4    -      -       +      -
    929A  TYR*     3.7    46.7    -      -       +      +
    932A  GLN*     2.9    21.0    +      -       +      +
    933A  ILE*     3.9    18.4    -      -       +      +
    955A  ILE*     3.7     7.4    -      -       +      -
    956A  LEU      3.2    13.0    -      -       -      +
    957A  VAL*     4.2     8.1    -      -       +      -
    958A  GLU      4.5     0.4    -      -       -      +
    962A  HIS*     1.3    91.2    -      -       -      +
    964A  LYS*     1.3    64.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 964 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    880A  SER      5.1     1.0    +      -       -      -
    881A  ASP*     3.4    25.9    +      -       -      +
    882A  PHE*     3.4     7.4    -      -       -      -
    883A  ILE      3.6    16.6    +      -       -      +
    884A  VAL*     3.8    13.5    -      -       +      +
    885A  LYS*     3.9    23.0    -      -       -      +
    903A  GLU*     2.6    35.9    +      -       -      +
    905A  LEU*     4.2    10.5    -      -       +      -
    933A  ILE*     6.1     0.4    -      -       -      -
    955A  ILE*     3.5     5.8    -      -       -      -
    956A  LEU*     2.8    40.0    +      -       +      +
    958A  GLU*     2.8    32.8    +      -       +      +
    962A  HIS*     4.0     3.1    -      -       +      +
    963A  VAL*     1.3    76.2    -      -       -      +
    965A  ILE*     1.3    62.5    +      -       -      +
    966A  ALA      3.5     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 965 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    882A  PHE      2.8    15.4    +      -       -      +
    883A  ILE*     3.5    11.4    -      -       +      -
    884A  VAL*     2.9    23.4    +      -       -      +
    933A  ILE*     3.9    15.5    -      -       +      +
    936A  GLY*     3.8     9.6    -      -       -      -
    937A  MET*     3.5    49.4    -      -       +      +
    940A  LEU*     5.1     1.3    -      -       +      -
    947A  HIS*     3.9    24.7    -      -       +      +
    950A  LEU*     4.6     2.9    -      -       +      -
    954A  ASN*     4.4     4.3    -      -       +      +
    955A  ILE*     3.9    22.9    -      -       +      -
    964A  LYS*     1.3    69.0    -      -       -      +
    966A  ALA*     1.3    59.8    +      -       -      +
    967A  ASP      3.9     1.1    -      -       -      +
    968A  PHE*     3.8    21.3    -      -       +      -
----------------------------------------------------------
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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