Contacts of the strand formed by residues 89 - 96 (chain C) in PDB entry 6PAI


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 TYR 89 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83C  PHE*     3.1     8.4    -      -       -      +
     84C  SER*     2.7    50.6    +      -       -      +
     86C  CYS*     4.7     5.4    -      -       -      -
     87C  GLY      3.5     0.2    -      -       -      -
     88C  ARG*     1.3   130.9    +      -       +      +
     90C  VAL*     1.3    66.3    +      -       -      +
     91C  LEU*     5.4     2.0    -      -       +      +
    111C  TRP*     3.7    32.5    -      +       +      -
    112C  TRP      3.1    21.5    -      -       -      +
    113C  GLU*     4.0     3.1    -      -       +      -
    114C  PHE*     4.8     0.4    -      -       -      -
    123C  VAL*     4.3    22.3    -      -       +      +
    187C  VAL*     4.6    15.7    -      -       +      -
    188C  PRO*     3.9    23.4    +      -       +      +
    189C  PRO      4.4     3.3    +      -       -      -
    190C  PRO*     5.1     0.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65C  LEU*     5.9     1.6    -      -       +      -
     68C  ILE*     5.9     1.8    -      -       +      -
     80C  PHE*     3.4    34.1    -      -       +      -
     82C  GLY*     3.1    16.2    -      -       -      +
     83C  PHE*     3.8    33.2    -      -       +      -
     89C  TYR*     1.3    76.3    -      -       -      +
     91C  LEU*     1.3    68.9    +      -       -      +
    112C  TRP*     2.7    40.2    +      -       +      +
    114C  PHE*     4.1    15.8    -      -       +      +
    120C  LEU*     4.6     8.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  PHE*     3.9     0.5    -      -       -      -
     81C  LEU*     2.8    63.1    +      -       +      +
     82C  GLY      3.1    13.4    +      -       -      +
     83C  PHE      6.1     0.4    -      -       -      -
     84C  SER*     5.8     8.5    -      -       -      +
     89C  TYR*     5.5     3.1    -      -       +      +
     90C  VAL*     1.3    78.7    -      -       -      +
     92C  SER*     1.3    53.4    +      -       -      +
    109C  LEU*     3.9    13.0    -      -       +      -
    110C  TYR      3.0    22.2    -      -       -      +
    111C  TRP*     3.9    35.7    -      -       +      +
    112C  TRP*     4.1     2.5    -      -       -      -
    142C  VAL*     4.2    21.8    -      -       +      -
    144C  GLU*     6.4     2.5    -      -       +      -
    152C  VAL*     5.2     4.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78C  HIS*     2.9    29.7    -      -       -      -
     79C  ILE      3.1    20.6    -      -       -      -
     80C  PHE*     3.5    20.9    -      -       -      -
     81C  LEU*     3.9     7.9    -      -       -      -
     91C  LEU*     1.3    74.9    -      -       -      +
     93C  TYR*     1.3    60.6    +      -       -      +
    109C  LEU*     3.3     6.8    -      -       -      +
    110C  TYR*     2.9    29.7    +      -       -      -
    112C  TRP*     3.3    11.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77C  GLY      4.2     0.5    -      -       -      +
     78C  HIS*     3.9     0.3    -      -       -      -
     79C  ILE*     3.2    68.8    +      -       +      +
     81C  LEU*     3.8    26.5    -      -       +      -
     92C  SER*     1.3    76.0    -      -       -      +
     94C  THR*     1.3    73.7    +      -       -      +
     95C  SER*     4.4    10.1    -      -       -      -
    107C  TYR*     4.1    15.0    -      +       +      -
    108C  HIS      3.0    14.1    -      -       -      +
    109C  LEU*     4.5     4.5    -      -       +      -
    110C  TYR*     3.9     2.2    -      -       -      -
    128C  LEU*     5.0     1.3    -      -       +      -
    137C  ASP*     5.9     0.4    -      -       -      -
    138C  LEU      4.9     6.4    +      -       -      -
    140C  LEU*     3.8    51.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76C  ALA      3.8    22.0    -      -       -      +
     77C  GLY      4.0     4.5    -      -       -      -
     78C  HIS*     3.9    21.3    -      -       +      +
     79C  ILE*     5.8     0.2    -      -       -      -
     93C  TYR*     1.3    80.2    -      -       -      +
     95C  SER*     1.3    62.6    +      -       -      +
     96C  SER*     4.1     6.1    +      -       -      -
    106C  ILE      3.3    12.6    -      -       -      +
    107C  TYR*     3.3    17.7    -      -       -      -
    108C  HIS*     2.9    15.3    +      -       -      +
    110C  TYR*     2.3    44.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77C  GLY      4.9     3.8    +      -       -      -
     79C  ILE*     5.6     6.2    -      -       -      +
     93C  TYR*     4.4     9.2    -      -       -      -
     94C  THR*     1.3    76.3    -      -       -      +
     96C  SER*     1.3    58.6    +      -       -      +
    105C  TYR*     3.3    20.0    -      -       -      -
    106C  ILE      3.4     5.8    -      -       -      -
    107C  TYR*     3.7    15.0    -      -       -      -
    137C  ASP*     3.2    23.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94C  THR*     5.4     5.0    -      -       -      -
     95C  SER*     1.3    75.8    +      -       -      +
     97C  SER*     1.3    65.0    +      -       -      +
    105C  TYR*     3.6     5.3    -      -       -      -
    106C  ILE*     2.9    47.8    +      -       -      +
    108C  HIS*     5.3     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