Contacts of the helix formed by residues 364 - 376 (chain A) in PDB entry 4OGB


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 SER 364 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362A  ASN      5.3     0.5    +      -       -      -
    363A  ALA*     1.3    76.4    -      -       -      +
    365A  VAL*     1.3    66.4    +      -       -      +
    366A  GLU*     3.2     7.4    -      -       -      -
    367A  LYS*     3.2    36.4    +      -       -      +
    368A  SER*     3.0    27.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 365 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333A  THR*     3.9    27.1    -      -       +      -
    337A  MET*     3.9    36.1    -      -       +      +
    341A  PHE*     4.6    10.5    -      -       +      -
    363A  ALA*     3.9     3.3    +      -       +      -
    364A  SER*     1.3    71.9    -      -       -      +
    366A  GLU*     1.3    70.3    +      -       -      +
    368A  SER*     3.4     5.9    +      -       -      -
    369A  GLN*     3.0    29.7    +      -       +      +
    406A  TYR*     4.5     9.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 366 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    364A  SER*     4.3     4.9    -      -       -      -
    365A  VAL*     1.3    90.3    +      -       -      +
    367A  LYS*     1.3    62.9    +      -       +      +
    369A  GLN*     3.4     3.3    +      -       -      +
    370A  VAL*     3.1    29.8    +      -       -      +
    405A  TRP*     5.9     0.4    -      -       +      -
    406A  TYR*     3.8    29.9    -      -       +      +
    409A  THR*     3.2    38.3    -      -       -      +
    410A  ILE*     4.1    15.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 367 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    364A  SER*     3.2    30.1    +      -       -      +
    366A  GLU*     1.3    76.2    -      -       -      +
    368A  SER*     1.3    65.8    +      -       -      +
    370A  VAL*     3.2     8.5    +      -       +      +
    371A  GLY*     3.0    21.1    +      -       -      -
    410A  ILE*     4.5    22.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 368 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337A  MET*     5.7     4.7    -      -       -      +
    357A  MET*     3.2    39.1    -      -       -      +
    364A  SER*     3.0    24.0    +      -       -      -
    365A  VAL*     3.7     6.5    -      -       -      -
    367A  LYS*     1.3    76.8    -      -       -      +
    369A  GLN*     1.3    60.8    +      -       -      +
    371A  GLY*     3.3     1.3    +      -       -      -
    372A  PHE*     2.8    30.6    +      -       -      +
    501A  2SR      3.3     9.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 369 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  TYR*     2.3    40.6    +      -       -      +
    333A  THR*     3.9    31.2    -      -       +      +
    336A  ILE*     5.0     4.2    -      -       -      +
    337A  MET*     5.0     6.7    -      -       -      -
    357A  MET*     5.9     0.4    -      -       -      -
    365A  VAL      3.0    20.6    +      -       -      +
    366A  GLU      3.7     4.5    -      -       -      +
    368A  SER*     1.3    77.8    -      -       -      +
    370A  VAL*     1.3    58.9    +      -       -      +
    372A  PHE*     3.4    15.2    +      -       -      +
    373A  ILE*     2.9    36.2    +      -       -      +
    406A  TYR*     4.0    21.8    -      -       +      -
    501A  2SR      3.0    27.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 370 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366A  GLU      3.1    17.7    +      -       -      +
    367A  LYS*     3.2     8.9    +      -       -      +
    369A  GLN*     1.3    74.7    -      -       -      +
    371A  GLY*     1.3    61.3    +      -       -      +
    373A  ILE*     3.3     5.5    +      -       -      +
    374A  ASP*     2.8    50.6    +      -       -      +
    403A  ARG*     3.8    20.9    -      -       -      +
    406A  TYR*     4.1     7.2    -      -       +      -
    407A  GLN*     3.7    49.1    -      -       +      +
    410A  ILE      5.5     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 371 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    367A  LYS      3.0    13.8    +      -       -      -
    368A  SER*     3.8     2.5    -      -       -      -
    370A  VAL*     1.3    74.2    -      -       -      +
    372A  PHE*     1.3    60.2    +      -       -      +
    374A  ASP*     4.4     1.3    -      -       -      -
    375A  TYR*     2.8    57.5    +      -       -      +
    376A  ILE*     5.3     0.2    -      -       -      +
    501A  2SR      4.7     3.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 372 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273A  MET*     5.3     0.9    -      -       +      -
    319A  LEU*     4.3    11.4    -      -       +      -
    322A  PRO*     4.3    15.9    -      -       +      -
    368A  SER      2.8    17.9    +      -       -      +
    369A  GLN*     3.4    18.6    -      -       -      +
    371A  GLY*     1.3    75.4    -      -       -      +
    373A  ILE*     1.3    57.6    +      -       -      +
    376A  ILE*     3.0    45.0    +      -       +      +
    377A  VAL*     3.0    36.5    +      -       +      -
    501A  2SR      3.3    89.8    -      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 373 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322A  PRO*     4.1    21.5    -      -       +      -
    329A  TYR*     3.6    26.2    -      -       +      +
    369A  GLN*     2.9    20.9    +      -       +      +
    370A  VAL*     3.8     3.4    -      -       -      +
    372A  PHE*     1.3    77.0    -      -       +      +
    374A  ASP*     1.3    67.3    +      -       -      +
    375A  TYR      3.3     0.3    +      -       -      -
    377A  VAL*     4.0     5.8    -      -       +      -
    378A  HIS*     2.7    45.8    +      -       +      +
    379A  PRO*     3.5     0.7    -      -       -      +
    399A  LEU*     4.0    18.4    -      -       +      +
    402A  ASN*     4.8     0.4    -      -       +      +
    403A  ARG*     3.7    47.3    -      -       +      +
    406A  TYR*     5.4     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 374 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370A  VAL*     2.8    31.5    +      -       -      +
    371A  GLY*     4.1     2.8    +      -       -      +
    373A  ILE*     1.3    76.1    -      -       -      +
    375A  TYR*     1.3    76.9    +      -       +      +
    378A  HIS*     4.6     4.0    -      -       -      +
    379A  PRO*     3.4    16.6    -      -       -      +
    403A  ARG*     2.8    46.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 375 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276A  HIS*     4.8     1.4    +      -       -      -
    277A  MET*     4.7    10.0    -      -       -      +
    371A  GLY*     2.8    44.8    +      -       -      +
    374A  ASP*     1.3    88.1    -      -       +      +
    376A  ILE*     1.3    68.3    +      -       +      +
    379A  PRO*     3.7    11.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 376 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273A  MET*     4.2     6.3    -      -       +      -
    276A  HIS*     3.7    37.3    +      -       +      +
    277A  MET*     5.1     7.0    -      -       +      -
    319A  LEU*     4.0    18.8    -      -       +      -
    372A  PHE*     3.0    30.1    +      -       +      +
    374A  ASP      3.6     0.4    -      -       -      -
    375A  TYR*     1.3    89.7    -      -       +      +
    377A  VAL*     1.3    69.2    +      -       -      +
    379A  PRO*     3.3     4.0    -      -       -      +
    380A  LEU*     3.3    22.0    +      -       -      +
    501A  2SR      3.2    41.3    -      -       +      -
----------------------------------------------------------
 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