Contacts of the helix formed by residues 368 - 383 (chain A) in PDB entry 2O2C


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 ASN 368 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    359A  HIS*     3.8     9.2    +      -       -      -
    360A  PHE*     2.9    39.5    +      -       -      -
    363A  ALA*     3.3    17.9    +      -       -      +
    364A  PRO      3.5    10.8    -      -       -      +
    365A  PRO*     3.3    12.7    +      -       +      +
    366A  GLU      3.6     0.6    -      -       -      -
    367A  GLN*     1.3    75.2    -      -       -      +
    369A  VAL*     1.3    57.5    +      -       -      +
    370A  PRO*     3.2    18.6    -      -       -      +
    371A  LEU*     3.4    20.6    +      -       +      +
    372A  LEU*     3.0    33.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 369 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  VAL*     3.8    24.9    -      -       +      +
     89A  VAL*     3.6    26.7    -      -       +      -
     99A  LEU*     5.0     9.2    -      -       +      +
    101A  LEU*     3.7    33.6    -      -       +      +
    356A  ILE*     6.3     0.9    -      -       +      -
    359A  HIS*     3.0    15.5    +      -       +      +
    368A  ASN*     1.3    70.9    -      -       -      +
    370A  PRO*     1.4    66.3    -      -       +      +
    372A  LEU*     3.4     1.5    +      -       -      -
    373A  LEU*     3.0    23.4    +      -       -      +
    529A  LEU*     5.1     0.2    -      -       +      -
    545A  MET*     3.6    31.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 370 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    356A  ILE*     4.3     7.9    -      -       +      -
    359A  HIS*     3.9    11.2    -      -       +      -
    360A  PHE*     3.7    20.0    -      -       +      -
    368A  ASN*     3.2    16.8    -      -       -      +
    369A  VAL*     1.4    87.0    -      -       +      +
    371A  LEU*     1.3    55.0    -      -       -      +
    373A  LEU*     3.6     6.1    +      -       +      +
    374A  ALA*     3.0    28.9    +      -       -      +
    545A  MET*     3.7    29.6    -      -       +      +
    548A  HIS*     3.6    28.7    -      -       +      -
    549A  LYS*     3.8     7.7    -      -       -      +
    552A  VAL*     4.7     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 371 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  LEU*     4.1     9.4    -      -       +      -
    120A  ALA*     4.0    19.1    -      -       +      -
    125A  ILE*     3.9    19.3    -      -       +      -
    360A  PHE*     4.3     4.6    -      -       +      -
    365A  PRO*     3.6    42.2    -      -       +      +
    368A  ASN*     3.4    22.9    +      -       +      +
    369A  VAL      3.3     0.6    -      -       -      -
    370A  PRO*     1.3    79.0    -      -       -      +
    372A  LEU*     1.3    56.6    +      -       -      +
    374A  ALA*     3.2     5.2    +      -       -      +
    375A  LEU*     2.9    40.6    +      -       +      +
    552A  VAL*     3.8    27.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 372 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  VAL*     4.0    11.9    -      -       +      -
    101A  LEU*     4.5     5.8    -      -       +      -
    103A  TYR*     3.8    45.3    -      -       +      +
    113A  LYS*     4.7    10.3    -      -       +      -
    117A  LEU*     4.5    14.6    -      -       +      -
    365A  PRO      4.0    12.8    -      -       -      +
    366A  GLU      3.6    22.2    -      -       -      +
    368A  ASN      3.0    29.9    +      -       -      +
    369A  VAL*     3.9     4.5    -      -       -      +
    371A  LEU*     1.3    74.5    -      -       -      +
    373A  LEU*     1.3    58.3    +      -       -      +
    375A  LEU*     3.3     7.3    +      -       +      +
    376A  VAL*     3.0    37.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 373 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  LEU*     3.8    25.5    -      -       +      +
    103A  TYR*     6.1     0.4    -      -       +      -
    369A  VAL      3.0    16.2    +      -       -      +
    370A  PRO      3.8     4.3    -      -       -      +
    372A  LEU*     1.3    76.4    -      -       -      +
    374A  ALA*     1.3    61.8    +      -       -      +
    376A  VAL*     3.6     5.7    +      -       -      +
    377A  GLY*     3.2    16.3    +      -       -      -
    458A  ASP*     4.3    10.1    -      -       -      +
    527A  ASN*     3.5    29.4    +      -       +      +
    529A  LEU*     4.9     2.0    -      -       +      -
    545A  MET*     3.9    39.0    -      -       +      -
    546A  TYR*     4.2    10.8    -      -       +      -
    549A  LYS*     3.9    33.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 374 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370A  PRO      3.0    18.6    +      -       -      +
    371A  LEU      3.2     4.9    +      -       -      +
    373A  LEU*     1.3    77.8    -      -       -      +
    375A  LEU*     1.3    57.1    +      -       -      +
    377A  GLY      3.2     0.2    +      -       -      -
    378A  VAL*     2.9    29.1    +      -       -      +
    549A  LYS*     3.5    31.8    -      -       +      +
    552A  VAL*     3.6    20.4    -      -       +      -
    553A  GLN*     3.1    16.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 375 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  LEU*     3.4    62.4    -      -       +      +
    117A  LEU*     3.9    22.9    -      -       +      -
    119A  LEU*     4.6     5.6    -      -       +      -
    120A  ALA*     4.4     7.4    -      -       +      -
    371A  LEU*     2.9    34.1    +      -       +      +
    372A  LEU*     3.8     8.7    -      -       +      +
    374A  ALA*     1.3    74.5    -      -       +      +
    376A  VAL*     1.3    59.6    +      -       +      +
    377A  GLY      3.1     0.2    -      -       -      -
    378A  VAL*     3.3     3.4    +      -       +      +
    379A  TRP*     3.0    29.1    +      -       -      +
    552A  VAL*     5.3     0.2    -      -       +      -
    556A  ILE*     3.7    26.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 376 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103A  TYR*     4.1    27.6    -      -       +      -
    106A  SER*     4.8     5.4    -      -       -      -
    108A  ILE*     3.8    23.3    -      -       +      -
    116A  LEU*     5.6     1.1    -      -       +      -
    372A  LEU*     3.0    24.3    +      -       +      +
    373A  LEU*     3.9     7.0    -      -       -      +
    375A  LEU*     1.3    74.1    -      -       +      +
    377A  GLY*     1.3    63.3    +      -       -      +
    379A  TRP*     3.3     6.7    +      -       -      +
    380A  TYR*     3.2    50.6    +      -       +      -
    527A  ASN*     4.0    24.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 377 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    373A  LEU      3.2    12.8    +      -       -      -
    375A  LEU      3.1     0.6    -      -       -      -
    376A  VAL*     1.3    75.9    -      -       -      +
    378A  VAL*     1.3    57.7    +      -       -      +
    380A  TYR*     3.2     6.7    +      -       -      +
    381A  ILE*     2.9    38.5    +      -       -      +
    389A  HIS*     5.9     5.6    -      -       -      -
    456A  PRO*     6.5     1.3    -      -       -      -
    549A  LYS*     5.1     4.0    -      -       -      -
    553A  GLN*     3.5    19.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 378 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  TRP*     4.2    20.0    -      -       +      -
    116A  LEU*     4.9     2.9    -      -       +      -
    119A  LEU*     4.3    15.3    -      -       +      -
    374A  ALA      2.9    19.6    +      -       -      +
    375A  LEU*     3.3     8.3    +      -       -      +
    377A  GLY*     1.3    70.5    -      -       -      +
    379A  TRP*     1.3    66.7    +      -       -      +
    381A  ILE*     4.6     2.9    -      -       -      -
    382A  ASN*     2.9    43.4    +      -       -      +
    383A  PHE*     3.8     6.3    -      -       +      -
    553A  GLN*     3.7    14.1    -      -       +      +
    556A  ILE*     3.9    23.6    -      -       +      -
    557A  TRP*     4.3    12.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 379 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  LEU*     3.5    40.8    -      -       +      -
     62A  LEU*     4.5     0.2    -      -       +      -
     63A  TYR*     3.6    32.8    -      +       +      -
     67A  GLY*     5.4     2.7    -      -       -      -
    107A  HIS      2.9    19.3    +      -       -      -
    108A  ILE*     3.7    20.4    -      -       +      +
    112A  ILE*     3.6    37.0    -      -       +      -
    116A  LEU*     4.1    11.4    -      -       +      +
    375A  LEU      3.0    13.9    +      -       -      +
    376A  VAL*     3.4     9.4    -      -       -      +
    377A  GLY      3.2     0.2    -      -       -      -
    378A  VAL*     1.3    75.1    -      -       -      +
    380A  TYR*     1.3    69.3    +      +       -      +
    383A  PHE*     3.2    53.3    +      +       -      +
    384A  PHE*     3.3    33.3    +      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 380 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106A  SER*     3.4     6.0    -      -       -      -
    107A  HIS*     2.5    53.6    +      +       -      -
    376A  VAL*     3.2    41.8    +      -       +      +
    377A  GLY*     3.2     5.6    +      -       -      +
    379A  TRP*     1.3    87.1    -      +       -      +
    381A  ILE*     1.3    59.7    +      -       +      +
    384A  PHE*     3.3    33.3    -      +       +      +
    385A  GLY      3.0    10.7    +      -       -      -
    386A  ALA*     2.9    24.5    +      -       +      +
    454A  LEU*     4.2     9.2    -      -       +      -
    456A  PRO*     3.8    31.2    -      -       +      -
    525A  PRO*     3.3    29.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 381 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    377A  GLY*     2.9    30.0    +      -       -      +
    378A  VAL      4.2     1.8    -      -       -      +
    380A  TYR*     1.3    73.1    -      -       +      +
    382A  ASN*     1.3    66.6    +      -       -      +
    385A  GLY*     3.2    23.2    -      -       -      -
    386A  ALA      3.4    20.9    -      -       -      +
    387A  VAL*     5.6     1.8    -      -       +      -
    427A  LEU*     3.7    26.6    -      -       +      +
    428A  THR      3.5    19.1    -      -       -      +
    430A  PRO*     3.8    34.8    -      -       +      -
    553A  GLN*     4.2     7.2    -      -       -      +
    557A  TRP*     3.8    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 382 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  TRP*     3.6    27.0    -      -       +      -
     60A  GLN*     4.7     4.3    +      -       -      -
    378A  VAL*     2.9    25.8    +      -       -      +
    381A  ILE*     1.3    76.2    -      -       -      +
    383A  PHE*     1.3    69.2    +      -       +      +
    385A  GLY*     4.5     1.1    -      -       -      -
    426A  THR*     3.6     7.2    -      -       -      -
    427A  LEU*     2.8    46.2    +      -       -      +
    557A  TRP*     2.7    27.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 383 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  TRP*     3.7    52.5    -      +       -      -
     59A  LEU*     3.6    35.9    -      -       +      -
     60A  GLN*     3.5    47.3    -      -       -      +
     63A  TYR*     3.2    40.7    -      -       +      -
    116A  LEU*     5.6     0.2    -      -       +      -
    378A  VAL*     3.8    17.0    -      -       +      -
    379A  TRP*     3.2    30.0    +      +       +      +
    382A  ASN*     1.3    79.7    -      -       +      +
    384A  PHE*     1.3    64.7    +      -       -      +
    385A  GLY      3.3     1.5    +      -       -      -
----------------------------------------------------------
 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