Contacts of the strand formed by residues 366 - 369 (chain U) in PDB entry 1G3I


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 ASN 366 (chain U).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357U  LYS*     4.5    16.2    +      -       -      +
    361U  ALA*     5.7     4.4    -      -       -      +
    364U  GLY      4.5     0.2    +      -       -      -
    365U  VAL*     1.3    77.9    +      -       -      +
    367U  ILE*     1.3    78.2    +      -       -      +
    368U  ALA      4.4     0.2    -      -       -      -
    417U  GLN      2.8    17.0    +      -       -      +
    418U  THR*     3.5    34.0    +      -       -      +
    419U  VAL*     3.4    13.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 367 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    356U  TYR      3.0    31.9    -      -       -      +
    357U  LYS*     3.2    46.4    +      -       +      +
    360U  MET*     3.5    15.7    -      -       +      -
    365U  VAL*     4.7     2.9    -      -       +      -
    366U  ASN*     1.3    87.6    +      -       -      +
    368U  ALA*     1.3    62.6    +      -       -      +
    369U  PHE*     3.9    16.4    +      -       +      -
    404U  MET*     4.2    10.8    -      -       +      -
    407U  ILE*     3.4    29.4    -      -       +      -
    418U  THR*     5.9     0.4    -      -       -      -
    419U  VAL*     3.8     8.1    -      -       +      +
    421U  ILE*     5.2     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 368 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357U  LYS*     5.2     1.6    -      -       -      +
    367U  ILE*     1.3    72.7    -      -       -      +
    369U  PHE*     1.3    61.4    +      -       -      +
    370U  THR*     3.7     2.2    +      -       -      +
    418U  THR*     5.3     8.6    -      -       +      +
    419U  VAL      3.1    13.2    +      -       -      +
    420U  ASN*     3.1    27.8    -      -       -      +
    421U  ILE*     2.7    35.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 369 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    353U  THR*     3.2    59.2    -      -       +      -
    356U  TYR*     4.8     1.3    -      -       +      -
    357U  LYS*     5.6     2.1    -      -       +      +
    367U  ILE*     3.9    16.4    +      -       +      -
    368U  ALA*     1.3    78.2    -      -       -      +
    370U  THR*     1.3    69.2    +      -       -      +
    371U  THR*     3.7     1.7    +      -       -      +
    373U  ALA*     5.9     0.2    -      -       -      -
    374U  VAL*     4.2     9.2    -      -       +      +
    377U  ILE*     5.8     4.0    -      -       +      -
    400U  MET*     4.0    14.8    -      -       +      -
    403U  LEU*     5.3     1.8    -      -       +      -
    404U  MET*     3.3    30.7    -      -       +      -
    421U  ILE*     3.1    41.1    -      -       +      -
----------------------------------------------------------
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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