Contacts of the strand formed by residues 78 - 83 (chain G) in PDB entry 1N9S


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 78 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  ARG*     3.4    19.0    +      -       +      +
     77A  ASN*     2.8    15.7    +      -       -      +
     29G  VAL*     4.0    18.4    -      -       +      -
     30G  LYS      3.8     8.5    -      -       -      +
     31G  LEU*     4.6     0.7    -      -       +      -
     32G  LYS*     4.2     3.3    -      -       -      +
     49G  PHE*     4.9     6.5    -      -       +      +
     51G  LEU*     5.1     4.3    -      -       +      -
     73G  ILE*     4.0    15.5    -      -       +      -
     74G  ARG      3.4    16.2    -      -       -      +
     75G  SER*     2.6    30.2    +      -       -      +
     76G  ASN      3.2     1.8    -      -       -      +
     77G  ASN*     1.3    74.5    -      -       -      +
     79G  LEU*     1.3    63.8    +      -       -      +
     80G  TYR*     3.6    19.7    -      -       -      +
     81G  ILE*     4.2    11.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 79 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  LEU*     3.8    13.2    -      -       +      -
     33A  PHE*     3.7    26.2    -      -       +      -
     38A  TYR*     3.1    26.7    -      -       +      +
     73A  ILE*     3.9     2.4    -      -       +      +
     74A  ARG      3.1    22.7    +      -       -      -
     77A  ASN*     3.0    43.9    +      -       +      +
     30G  LYS*     2.9    27.1    +      -       +      +
     31G  LEU      3.9    15.3    -      -       -      +
     32G  LYS*     4.0     1.7    -      -       -      +
     77G  ASN      3.8     1.8    +      -       -      -
     78G  VAL*     1.3    74.0    -      -       -      +
     80G  TYR*     1.3    81.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 80 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  TYR*     3.1    42.2    -      +       -      -
     58A  GLU*     4.6     5.0    +      -       -      -
     68A  LEU*     3.7    27.3    -      -       +      +
     71A  ILE*     4.4    13.5    -      -       +      -
     72A  PHE      3.4    16.4    -      -       -      +
     73A  ILE*     4.0    11.7    -      -       +      -
     74A  ARG*     4.8     0.7    -      -       -      +
     28G  GLY      3.6     0.4    -      -       -      +
     29G  VAL*     3.7     0.7    -      -       -      -
     30G  LYS*     2.9    53.2    +      -       +      +
     37G  GLU*     4.7     3.7    +      -       -      -
     78G  VAL*     3.6     2.5    -      -       -      +
     79G  LEU*     1.3    98.8    -      -       +      +
     81G  ILE*     1.3    77.2    +      -       -      +
     82G  ARG*     4.2    23.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 81 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  ILE*     3.3     2.8    -      -       -      -
     72A  PHE*     2.9    38.2    +      -       +      +
     19G  LEU*     4.3    14.4    -      -       +      -
     22G  LEU*     4.2    14.8    -      -       +      -
     27G  VAL*     4.1    23.1    -      -       +      -
     28G  GLY      3.2     8.5    -      -       -      +
     29G  VAL*     4.7     5.8    -      -       +      -
     42G  LEU*     5.6     3.4    -      -       +      -
     49G  PHE*     3.4    28.9    -      -       +      -
     51G  LEU*     3.7    27.6    -      -       +      -
     78G  VAL*     4.2     7.0    -      -       +      -
     80G  TYR*     1.3    86.7    -      -       -      +
     82G  ARG*     1.3    64.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 82 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  THR      5.8     0.6    +      -       -      -
     68A  LEU*     4.5    25.5    -      -       -      +
     69A  GLY      5.2     3.4    -      -       -      +
     70A  GLU      3.4    15.3    -      -       -      +
     71A  ILE*     4.0    11.4    -      -       +      -
     72A  PHE*     5.3     0.7    -      -       -      -
     22G  LEU*     5.2     1.3    -      -       -      -
     27G  VAL*     2.8    12.0    -      -       -      +
     28G  GLY*     2.5    48.2    +      -       -      +
     37G  GLU*     2.8    36.3    +      -       -      -
     39G  ARG*     3.9    15.2    -      -       -      +
     80G  TYR*     4.2    13.4    +      -       +      -
     81G  ILE*     1.3    76.2    -      -       -      +
     83G  GLU*     1.3    61.8    +      -       -      +
     84G  LEU*     3.4    24.0    -      -       +      +
     85G  PRO*     4.5    14.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 83 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  GLY*     5.2     8.3    -      -       -      -
     70A  GLU*     3.6    24.4    +      -       +      +
     72A  PHE*     6.1     0.2    -      -       +      -
     22G  LEU*     4.0    22.0    -      -       +      +
     25G  HIS*     3.7    25.0    -      -       +      -
     26G  ARG      3.6     7.9    -      -       -      +
     27G  VAL*     4.2     4.3    -      -       -      +
     82G  ARG*     1.3    75.4    -      -       -      +
     84G  LEU*     1.3    75.6    +      -       -      +
     85G  PRO*     3.4     8.0    -      -       -      +
     86G  ASN      5.5     1.6    -      -       -      +
----------------------------------------------------------
 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