Contacts of the strand formed by residues 426 - 430 (chain C) in PDB entry 4J2X


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 SER 426 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    398C  GLU*     6.3     2.2    -      -       -      -
    399C  LEU      3.3     5.6    -      -       -      -
    400C  THR*     4.5    11.4    -      -       -      -
    404C  PHE*     3.9     0.9    -      -       -      -
    422C  ARG*     3.4    46.1    +      -       -      +
    423C  CYS*     2.8    28.2    +      -       -      +
    425C  GLU*     1.3    77.6    -      -       -      +
    427C  MET*     1.3    64.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 427 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    398C  GLU*     3.6     1.7    -      -       -      +
    399C  LEU*     2.7    49.4    +      -       +      +
    404C  PHE*     3.7    32.8    -      -       +      -
    405C  THR      4.7     6.1    -      -       -      +
    408C  LEU*     4.6    16.6    -      -       +      +
    410C  VAL*     3.9    17.0    -      -       +      -
    419C  THR*     3.9    15.0    -      -       +      -
    420C  MET      3.4    20.6    -      -       -      +
    421C  TYR*     4.2     7.4    -      -       -      -
    422C  ARG*     4.7     3.3    -      -       -      +
    426C  SER*     1.3    78.7    -      -       -      +
    428C  LEU*     1.3    61.1    +      -       -      +
    454C  LEU*     3.7    37.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 428 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    389C  ASN*     3.4    28.3    -      -       -      +
    396C  MET*     3.7    32.5    -      -       +      -
    397C  LEU      3.6     5.2    -      -       -      +
    398C  GLU*     3.9    14.1    -      -       +      -
    399C  LEU*     4.9     0.2    -      -       -      -
    418C  GLU      4.1     0.2    -      -       -      +
    419C  THR*     3.4     5.4    -      -       -      +
    420C  MET*     2.8    51.6    +      -       +      +
    422C  ARG*     3.5    44.8    -      -       +      +
    427C  MET*     1.3    72.7    -      -       -      +
    429C  CYS*     1.3    59.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 429 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    396C  MET*     3.5    11.0    -      -       -      +
    397C  LEU*     3.0    46.8    +      -       -      -
    399C  LEU*     4.1     3.6    -      -       -      -
    410C  VAL*     3.8    31.0    -      -       +      -
    412C  PHE*     3.6    35.2    -      -       -      -
    417C  ALA*     4.4     4.3    -      -       +      -
    418C  GLU      3.3    10.8    -      -       -      +
    419C  THR*     4.0     4.7    -      -       -      +
    428C  LEU*     1.3    76.6    -      -       -      +
    430C  VAL*     1.3    59.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 430 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394C  VAL*     4.4    25.6    -      -       +      -
    395C  ALA      3.8     9.6    -      -       -      +
    396C  MET*     4.0    20.6    -      -       +      -
    417C  ALA*     3.7    15.1    -      -       -      +
    418C  GLU*     3.0    50.0    +      -       +      +
    429C  CYS*     1.3    70.5    -      -       -      +
    431C  VAL*     1.3    74.4    +      -       -      +
    432C  PRO*     3.3     8.3    -      -       -      +
----------------------------------------------------------
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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