Contacts of the strand formed by residues 340 - 346 (chain K) in PDB entry 3GHG


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 ILE 340 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310K  LEU*     6.1     1.1    -      -       +      -
    329K  PHE*     4.2    13.9    -      -       +      -
    330K  THR      3.5     3.6    -      -       -      -
    331K  VAL*     4.5     0.7    -      -       -      +
    339K  GLN*     1.3    78.9    -      -       -      +
    341K  SER*     1.3    67.0    +      -       -      +
    342K  VAL*     3.8    26.9    -      -       +      -
    353K  LEU*     5.6     5.6    -      -       +      -
    370K  HIS*     3.7    18.6    -      -       +      +
    371K  ASN*     5.5     0.7    -      -       -      -
    372K  GLY*     2.9    28.6    +      -       -      +
    373K  MET      3.1     6.9    +      -       -      +
    402K  TRP*     6.3     0.7    -      -       +      -
    403K  TRP*     3.1    74.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 341 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328K  GLY      5.7     0.3    -      -       -      -
    329K  PHE*     3.3     4.7    +      -       -      -
    330K  THR*     3.0    43.6    +      -       -      +
    339K  GLN*     6.1     0.9    -      -       -      -
    340K  ILE*     1.3    74.7    -      -       -      +
    342K  VAL*     1.3    69.1    +      -       -      +
    343K  ASN*     5.4     4.4    +      -       -      -
    371K  ASN*     3.2    12.8    -      -       -      -
    372K  GLY*     4.9     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 342 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310K  LEU*     5.5     2.2    -      -       +      -
    326K  TYR*     3.2    37.7    -      -       +      -
    328K  GLY      3.2    11.0    -      -       -      +
    329K  PHE*     4.3     9.0    -      -       +      -
    340K  ILE*     3.8    25.1    -      -       +      -
    341K  SER*     1.3    82.4    -      -       -      +
    343K  ASN*     1.3    65.6    +      -       -      +
    353K  LEU*     3.7    23.8    -      -       +      -
    354K  MET*     3.5    13.0    -      -       +      +
    370K  HIS*     6.6     0.2    -      -       +      -
    371K  ASN*     2.8    35.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 343 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326K  TYR*     3.3     6.4    -      -       -      -
    327K  GLY      3.1    14.2    +      -       -      -
    328K  GLY*     3.0    19.8    +      -       -      -
    341K  SER*     5.4     4.0    +      -       -      -
    342K  VAL*     1.3    76.9    +      -       -      +
    344K  LYS*     1.3    98.8    -      -       +      +
    345K  TYR      3.5     1.8    -      -       -      -
    354K  MET*     3.2    17.9    -      -       -      -
    371K  ASN*     4.9     1.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 344 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325K  HIS      3.6     1.7    -      -       -      +
    327K  GLY*     3.1    28.8    +      -       -      +
    328K  GLY*     4.3    10.7    -      -       -      +
    343K  ASN*     1.3   101.9    -      -       -      +
    345K  TYR*     1.3    64.6    +      -       -      +
    346K  ARG*     4.5     5.4    -      -       -      +
    354K  MET*     3.8     4.0    -      -       -      +
    457K  PHE*     4.6    18.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 345 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324K  ALA*     4.3     6.5    -      -       +      -
    325K  HIS      3.0    24.0    -      -       -      -
    326K  TYR*     3.4    29.2    -      +       +      -
    344K  LYS*     1.3    78.3    -      -       -      +
    346K  ARG*     1.3    80.5    +      -       -      +
    347K  GLY      2.8    35.1    +      -       -      -
    349K  ALA      4.0     0.2    +      -       -      -
    350K  GLY*     2.8    26.4    +      -       -      -
    351K  ASN*     3.0    42.6    -      -       +      +
    354K  MET*     3.1    13.8    -      -       +      +
    355K  ASP*     5.2     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 346 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245K  GLU*     5.1     9.5    +      -       -      -
    309K  GLU*     5.1     2.0    +      -       -      -
    325K  HIS*     2.8    80.2    +      -       +      +
    344K  LYS      4.5     5.6    -      -       -      +
    345K  TYR*     1.3    88.6    -      -       -      +
    347K  GLY*     1.3    58.5    +      -       -      +
----------------------------------------------------------
 Back to top of page


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