Contacts of the strand formed by residues 326 - 329 (chain A) in PDB entry 1CG1


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 GLY 326 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261A  TYR*     3.3    13.9    +      -       -      -
    262A  VAL      3.5     3.5    +      -       -      +
    263A  LEU*     3.5     7.7    -      -       -      +
    264A  GLY*     3.0    23.0    +      -       -      -
    324A  LEU*     3.5     2.8    -      -       -      +
    325A  SER*     1.3    84.0    +      -       -      +
    327A  PHE*     1.3    61.8    +      -       -      -
    408A  VAL*     3.5     9.2    -      -       -      -
    409A  PRO      3.4    13.9    -      -       -      -
    411A  ASP*     4.1     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  THR*     4.0     6.7    -      -       +      -
    263A  LEU*     3.7     8.3    -      -       -      +
    264A  GLY      3.2    15.5    -      -       -      -
    266A  LEU*     4.0    25.8    -      -       +      -
    315A  VAL*     3.4    32.1    -      -       +      -
    319A  VAL*     3.9     8.3    -      -       +      -
    324A  LEU*     3.2    33.2    -      -       +      -
    326A  GLY*     1.3    73.9    -      -       -      -
    328A  CYS*     1.3    63.1    +      -       -      +
    329A  LEU      3.9     0.4    -      -       -      -
    402A  ILE*     4.8     2.0    -      -       +      -
    406A  THR*     3.5    25.4    -      -       +      -
    408A  VAL*     3.7    28.0    -      -       +      -
    409A  PRO      3.0     6.7    +      -       -      -
    410A  ILE*     3.7    20.4    -      -       +      -
    411A  ASP      3.0    22.5    +      -       -      +
    412A  ILE      3.3     4.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 328 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  ILE*     3.3    38.8    -      -       -      -
    263A  LEU*     3.7     9.6    -      -       +      -
    264A  GLY      3.0     5.3    +      -       -      -
    265A  ILE*     3.6    21.3    -      -       +      -
    266A  LEU      2.8    27.0    +      -       -      +
    327A  PHE*     1.3    75.4    -      -       -      +
    329A  LEU*     1.3    65.5    +      -       -      +
    330A  THR*     3.4    12.6    +      -       -      +
    412A  ILE*     3.2    24.7    -      -       +      -
    414A  SER*     4.8     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 329 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266A  LEU*     3.3    33.0    -      -       +      +
    268A  ALA*     4.0    21.5    -      -       +      -
    327A  PHE*     3.9     0.4    -      -       -      +
    328A  CYS*     1.3    71.9    -      -       -      +
    330A  THR*     1.3    56.2    +      -       -      +
    332A  LEU*     4.1    20.0    -      -       +      -
    398A  TYR*     4.9     1.3    -      -       +      -
    399A  ILE*     3.6    33.4    -      -       +      -
    402A  ILE*     4.3    16.2    -      -       +      -
    410A  ILE*     3.7    26.9    -      -       +      +
    412A  ILE      2.8     8.4    +      -       -      +
    413A  ILE*     3.2    13.0    -      -       +      +
    414A  SER*     2.7    31.7    +      -       -      -
----------------------------------------------------------
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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