Contacts of the helix formed by residues 324 - 337 (chain I) in PDB entry 2OHI


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 PRO 324 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318I  ILE*     5.2     6.7    -      -       +      -
    322I  PRO      3.2     7.8    -      -       -      +
    323I  TYR*     1.3    95.5    -      -       +      +
    325I  SER*     1.3    59.3    +      -       -      +
    326I  VAL      3.1     0.7    -      -       -      -
    327I  GLY*     2.8    19.6    +      -       -      -
    298J  ARG*     3.6    31.0    -      -       -      +
    328J  ASP*     3.4    39.3    -      -       -      +
    331J  MET*     4.1     8.2    -      -       +      +
    332J  TYR*     3.8    28.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 325 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264I  ASP*     2.6    33.1    +      -       -      +
    293I  LEU*     3.6    27.1    -      -       -      +
    323I  TYR*     3.1    12.7    +      -       -      -
    324I  PRO*     1.3    79.8    -      -       -      +
    326I  VAL*     1.3    62.9    +      -       -      +
    328I  ASP*     3.2    19.7    +      -       -      +
    329I  LEU*     3.6     4.5    +      -       -      +
    298J  ARG*     4.5     3.6    -      -       -      +
    328J  ASP*     3.4    16.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 326 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    264I  ASP*     5.3     1.6    -      -       +      -
    293I  LEU*     4.0    20.4    -      -       +      -
    313I  LEU*     4.1     8.3    -      -       +      -
    314I  GLY      4.3     3.8    -      -       -      +
    315I  ALA*     3.6    27.6    -      -       +      -
    322I  PRO*     4.5     8.5    -      -       +      -
    323I  TYR*     3.4    16.2    -      -       +      +
    325I  SER*     1.3    78.0    +      -       -      +
    327I  GLY*     1.3    55.2    +      -       -      +
    329I  LEU*     3.5     2.8    +      -       +      +
    330I  LEU*     2.9    53.5    +      -       +      +
    362I  MET*     3.8    23.3    -      -       +      -
    331J  MET*     4.5     1.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 327 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324I  PRO      2.8    13.5    +      -       -      -
    326I  VAL*     1.3    76.8    -      -       -      +
    328I  ASP*     1.3    64.2    +      -       -      +
    330I  LEU*     4.1     2.6    -      -       -      +
    331I  MET*     3.3    22.7    +      -       -      +
    327J  GLY*     3.4    23.4    -      -       -      -
    331J  MET*     3.7    22.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 328 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298I  ARG*     2.7    52.0    +      -       -      +
    324I  PRO      3.8     1.0    +      -       -      -
    325I  SER*     3.2    10.9    +      -       -      +
    327I  GLY*     1.3    76.3    -      -       -      +
    329I  LEU*     1.3    63.9    +      -       -      +
    331I  MET*     3.3     2.9    +      -       -      +
    332I  TYR*     3.1    17.2    +      -       -      +
    324J  PRO*     3.2    22.9    -      -       -      +
    325J  SER*     3.1    19.6    -      -       -      -
    328J  ASP*     3.6    20.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 329 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262I  ILE*     3.9    32.3    -      -       +      -
    293I  LEU*     4.3    21.1    -      -       +      -
    298I  ARG*     4.4    19.1    -      -       +      -
    301I  ILE*     4.2    22.4    -      -       +      -
    302I  VAL*     4.7     6.5    -      -       +      -
    305I  ILE*     4.7     2.0    -      -       +      -
    313I  LEU*     3.9    18.2    -      -       +      -
    325I  SER      3.6     2.7    +      -       -      +
    326I  VAL*     3.5     6.5    +      -       -      +
    328I  ASP*     1.3    83.4    +      -       -      +
    330I  LEU*     1.3    57.3    +      -       +      +
    332I  TYR*     3.2     7.0    +      -       +      +
    333I  LEU*     2.8    55.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 330 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313I  LEU*     4.1     8.7    -      -       +      -
    326I  VAL*     2.9    44.6    +      -       +      +
    327I  GLY*     4.4     4.0    -      -       -      +
    329I  LEU*     1.3    77.5    -      -       +      +
    331I  MET*     1.3    57.5    +      -       -      +
    333I  LEU*     3.4     8.8    +      -       +      +
    334I  ARG*     3.0    32.2    +      -       +      +
    362I  MET*     4.5     8.5    -      -       +      -
    365I  LEU*     3.7    40.4    -      -       +      +
    366I  LEU*     3.7    46.7    -      -       +      +
    369I  ALA*     4.6     2.4    -      -       +      +
    331J  MET*     4.8     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 331 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327I  GLY      3.3    16.3    +      -       -      +
    328I  ASP      3.3     5.4    +      -       -      +
    330I  LEU*     1.3    77.8    -      -       -      +
    332I  TYR*     1.3    59.9    +      -       -      +
    334I  ARG*     3.4    21.3    -      -       -      +
    335I  GLY      3.5     5.5    +      -       -      -
    321J  GLU*     3.8    21.1    -      -       +      +
    322J  PRO*     3.6    46.1    -      -       +      +
    323J  TYR      4.3     0.9    -      -       -      +
    324J  PRO*     4.2     7.9    -      -       +      +
    326J  VAL*     4.4     4.7    -      -       +      -
    327J  GLY*     3.4    35.9    -      -       -      +
    330J  LEU*     4.6     0.4    -      -       +      -
    361J  THR*     5.0     3.4    -      -       +      -
    365J  LEU*     4.0    26.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 332 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27I  GLY      5.1     3.3    +      -       -      -
     28I  TYR*     5.7     0.3    -      -       -      -
    201I  ASN*     2.4    45.1    +      -       -      +
    298I  ARG*     3.7    33.9    -      -       +      -
    299I  SER*     4.8     2.1    -      -       -      -
    302I  VAL*     3.7    17.7    -      -       +      -
    328I  ASP      3.1    13.1    +      -       -      +
    329I  LEU*     3.5    12.3    -      -       +      +
    331I  MET*     1.3    75.1    -      -       -      +
    333I  LEU*     1.3    60.1    +      -       -      +
    334I  ARG      3.2     0.2    -      -       -      -
    335I  GLY*     3.3     3.7    +      -       -      -
    336I  LEU*     2.9    60.0    +      -       +      +
    318J  ILE*     5.2    15.5    -      -       +      -
    324J  PRO*     3.8    27.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 333 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302I  VAL*     4.1     8.5    -      -       +      -
    305I  ILE*     3.7    28.5    -      -       +      -
    311I  ILE*     5.1     3.1    -      -       +      -
    313I  LEU*     5.8     0.4    -      -       +      -
    329I  LEU*     2.8    42.5    +      -       +      +
    330I  LEU*     3.7     9.6    -      -       +      +
    332I  TYR*     1.3    73.4    -      -       -      +
    334I  ARG*     1.3    64.3    +      -       -      +
    336I  LEU*     3.8     3.5    -      -       +      +
    337I  LYS      3.2    17.7    +      -       -      -
    338I  PHE*     3.7    28.8    +      -       +      -
    366I  LEU*     4.3    16.2    -      -       +      -
    369I  ALA*     3.8    22.4    -      -       +      +
    371I  PHE*     4.2    19.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 334 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330I  LEU      3.0    19.9    +      -       -      +
    331I  MET*     3.4    15.7    -      -       -      +
    332I  TYR      3.2     0.4    -      -       -      -
    333I  LEU*     1.3    77.6    -      -       -      +
    335I  GLY*     1.3    56.4    +      -       -      +
    337I  LYS*     2.9    40.9    +      -       -      +
    365I  LEU*     4.7    13.0    -      -       -      +
    368I  GLU*     2.6    41.6    +      -       -      +
    369I  ALA*     4.5    19.1    -      -       +      +
    321J  GLU*     4.0    33.4    +      -       +      +
    361J  THR*     6.4     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 335 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205I  PRO*     3.5    10.0    -      -       -      +
    331I  MET      3.5     5.3    +      -       -      -
    332I  TYR*     3.3     7.1    +      -       -      -
    334I  ARG*     1.3    78.1    -      -       -      +
    336I  LEU*     1.3    64.7    +      -       -      +
    337I  LYS*     3.9     4.6    -      -       -      +
    318J  ILE      4.6     1.8    -      -       -      -
    319J  TYR*     3.3    43.7    -      -       -      +
    321J  GLU*     3.8    10.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 336 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200I  ALA      3.8    15.3    -      -       -      +
    201I  ASN      3.8    22.7    -      -       -      +
    204I  THR*     3.5     3.4    -      -       -      -
    205I  PRO*     3.0    42.9    -      -       +      +
    302I  VAL*     3.8    12.1    -      -       +      -
    332I  TYR*     2.9    65.8    +      -       +      +
    333I  LEU*     3.6     4.9    +      -       -      +
    335I  GLY*     1.3    79.8    -      -       -      +
    337I  LYS*     1.3    68.0    +      -       -      +
    338I  PHE*     3.6    17.7    +      -       +      -
    319J  TYR*     4.4     9.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 337 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204I  THR      4.1     3.1    -      -       -      +
    333I  LEU      3.2    12.2    +      -       -      -
    334I  ARG*     2.9    36.9    +      -       -      +
    335I  GLY*     3.9     7.0    -      -       -      +
    336I  LEU*     1.3    83.2    -      -       -      +
    338I  PHE*     1.3    65.9    +      -       -      +
    339I  ASN*     3.2    24.4    +      -       -      +
    340I  ARG*     3.3    60.7    +      -       +      +
    368I  GLU      4.7    11.6    +      -       -      -
    369I  ALA      4.4     3.9    +      -       -      -
----------------------------------------------------------
 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