Contacts of the helix formed by residues 130 - 138 (chain A) in PDB entry 6W01


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 130 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  VAL      3.4     0.6    +      -       -      -
    129A  ASP*     1.3    71.9    -      -       -      +
    131A  GLN*     1.3    59.1    +      -       -      +
    132A  VAL      3.4     2.4    -      -       -      +
    133A  ASP*     3.3    16.4    +      -       -      +
    134A  LEU*     2.9    33.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  ALA*     3.3    38.8    +      -       -      +
     83A  ASN*     4.3    10.5    +      -       -      +
    123A  PHE      4.5     0.3    -      -       -      +
    124A  PHE*     3.4    14.9    -      -       +      +
    125A  ASP*     2.7    54.8    +      -       -      +
    128A  VAL*     3.2    35.2    +      -       +      +
    129A  ASP      4.2     1.6    -      -       -      +
    130A  GLY*     1.3    76.6    -      -       -      +
    132A  VAL*     1.3    65.4    +      -       -      +
    134A  LEU*     3.2    17.1    +      -       +      +
    135A  PHE*     2.9    23.6    +      -       -      +
    143A  LEU*     4.8     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126A  GLY*     3.7    27.8    -      -       -      +
    128A  VAL      4.6     1.2    +      -       -      -
    130A  GLY      3.4     0.8    -      -       -      +
    131A  GLN*     1.3    75.5    -      -       -      +
    133A  ASP*     1.3    62.2    +      -       -      +
    135A  PHE*     3.2     5.2    +      -       -      +
    136A  ARG*     2.9    40.4    +      -       +      +
    143A  LEU*     4.1    18.6    -      -       +      -
    145A  THR*     4.1    11.9    -      -       +      -
    149A  VAL*     4.1    27.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 133 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130A  GLY*     3.3    15.7    +      -       -      +
    131A  GLN      3.2     0.4    -      -       -      -
    132A  VAL*     1.3    77.8    -      -       -      +
    134A  LEU*     1.3    64.9    +      -       -      +
    136A  ARG*     3.2    25.2    +      -       -      +
    137A  ASN*     3.2    32.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 134 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  ASN*     5.5     1.1    -      -       -      +
    111A  LYS*     6.4     0.4    -      -       +      -
    112A  PRO*     4.1    26.0    -      -       +      -
    113A  THR*     3.7    31.3    -      -       +      +
    124A  PHE*     3.5    18.0    -      -       +      -
    130A  GLY*     2.9    19.9    +      -       -      +
    131A  GLN*     3.2    24.9    +      -       +      +
    133A  ASP*     1.3    75.6    -      -       +      +
    135A  PHE*     1.3    57.2    +      -       -      +
    137A  ASN*     3.2     6.3    +      -       +      +
    138A  ALA*     2.9    28.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 135 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  PHE*     3.9    30.0    -      +       +      -
    131A  GLN      2.9    12.9    +      -       -      +
    132A  VAL      3.3     8.7    -      -       -      +
    134A  LEU*     1.3    76.4    -      -       -      +
    136A  ARG*     1.3    67.6    +      -       +      +
    138A  ALA*     3.0    12.4    +      -       +      +
    141A  GLY*     3.6    28.7    -      -       -      -
    143A  LEU*     3.5    38.6    -      -       +      -
    152A  LEU*     4.0    25.4    -      -       +      -
    180A  TYR*     3.9    22.4    -      -       +      -
    181A  LYS      4.0     5.8    -      -       -      -
    182A  LYS*     3.1    46.3    +      -       +      +
    187A  VAL*     5.1     3.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 136 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  VAL*     2.9    25.5    +      -       +      +
    133A  ASP*     3.2    30.7    +      -       -      +
    135A  PHE*     1.3    82.4    -      -       +      +
    137A  ASN*     1.3    61.3    +      -       -      +
    149A  VAL*     3.3    20.6    -      -       -      +
    150A  LYS*     2.7    40.0    +      -       -      +
    151A  GLY*     5.4     0.8    -      -       -      -
    152A  LEU*     4.4    17.1    -      -       +      +
    182A  LYS*     2.9    17.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 137 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113A  THR*     5.6     9.9    -      -       +      -
    133A  ASP*     3.2    21.3    +      -       -      +
    134A  LEU*     3.5     5.8    -      -       +      +
    135A  PHE      3.1     0.4    -      -       -      -
    136A  ARG*     1.3    82.1    +      -       -      +
    138A  ALA*     1.3    63.1    +      -       -      +
    139A  ARG      3.8     1.0    +      -       -      -
    182A  LYS*     4.1     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 138 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  PRO      6.0     1.8    -      -       -      +
    122A  VAL*     5.7     0.9    -      -       +      -
    124A  PHE*     3.6    30.1    -      -       +      -
    134A  LEU      2.9    16.0    +      -       -      +
    135A  PHE*     3.0     6.3    +      -       +      +
    137A  ASN*     1.3    78.1    -      -       -      +
    139A  ARG*     1.3    61.3    -      -       -      +
    140A  ASN      4.0    10.5    -      -       -      +
    141A  GLY*     5.3     0.4    -      -       -      -
    182A  LYS*     2.6    34.2    +      -       +      +
    185A  GLY*     4.6     0.5    -      -       -      -
----------------------------------------------------------
 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