Contacts of the strand formed by residues 421 - 424 (chain J) in PDB entry 6PSU


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 VAL 421 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366J  CYS*     4.4    10.5    -      -       -      -
    368J  LEU*     4.7     7.6    -      -       +      -
    376J  LEU*     6.0     1.3    -      -       +      -
    377J  PHE*     3.6    24.9    -      -       +      -
    420J  PRO*     1.3    77.3    -      -       -      +
    422J  LEU*     1.3    64.5    +      -       -      +
    423J  LEU*     3.8    20.4    +      -       +      -
    436J  ALA*     3.3     3.6    -      -       -      -
    437J  PHE      2.9    36.4    +      -       -      +
    439J  PRO*     3.4    27.8    -      -       +      -
    468J  VAL*     4.6    10.3    -      -       +      -
    469J  HIS      3.5    13.5    -      -       -      +
    470J  VAL*     4.9     2.7    -      -       +      -
    471J  PRO*     3.8     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 422 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1270I  PHE*     5.7     1.3    -      -       +      -
   1278I  LEU*     4.6    11.0    -      -       +      -
   1286I  THR*     4.6    12.1    -      -       +      -
   1290I  MET*     4.7     8.7    -      -       +      -
    421J  VAL*     1.3    72.2    -      -       -      +
    423J  LEU*     1.3    65.4    +      -       -      +
    434J  ILE*     3.9    25.1    -      -       +      -
    435J  GLN      4.0     3.8    -      -       -      -
    436J  ALA*     4.3     4.7    -      -       +      +
    467J  ALA      3.3     0.7    -      -       -      +
    468J  VAL*     2.9    28.8    -      -       -      +
    469J  HIS*     2.9    34.8    +      -       +      +
    471J  PRO*     3.3    38.1    -      -       +      -
    480J  ALA*     4.5     2.9    -      -       +      -
    484J  MET*     4.1    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 423 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366J  CYS*     4.0    23.6    -      -       -      -
    421J  VAL*     3.8     6.9    +      -       +      -
    422J  LEU*     1.3    76.6    -      -       -      +
    424J  ASN*     1.3    66.9    +      -       -      +
    434J  ILE*     3.6    19.1    -      -       -      +
    435J  GLN      3.1    16.5    +      -       -      +
    437J  PHE*     4.0    13.7    -      -       +      -
    447J  ILE*     4.3    10.1    -      -       +      -
    449J  LEU*     3.2    35.0    -      -       +      -
    457J  TYR*     3.1    19.7    -      -       +      +
    466J  MET*     4.4    13.0    -      -       +      -
    467J  ALA      3.3     2.5    -      -       -      +
    468J  VAL*     3.2    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 424 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1269I  ARG      5.1     3.2    +      -       -      -
   1270I  PHE*     5.3     0.2    -      -       -      -
   1274I  GLU*     3.2    29.7    +      -       -      +
    352J  ARG*     5.3     1.1    +      -       -      +
    422J  LEU*     5.8     0.2    -      -       +      -
    423J  LEU*     1.3    81.2    -      -       -      +
    425J  ARG*     1.3    83.7    +      -       -      +
    428J  THR*     2.8    15.3    +      -       -      -
    433J  GLY      3.9     6.6    -      -       -      +
    434J  ILE*     3.5    17.8    -      -       +      +
    457J  TYR*     4.6     0.2    -      -       -      -
    466J  MET*     3.1    11.0    -      -       -      -
    467J  ALA*     2.7    42.5    +      -       +      +
    469J  HIS*     4.1    23.6    +      -       +      +
----------------------------------------------------------
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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