Contacts of the helix formed by residues 230 - 241 (chain D) in PDB entry 3VI4


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 230 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167D  PHE*     4.2     6.9    -      -       -      +
    168D  VAL      3.0    13.1    +      -       -      -
    169D  GLU*     3.7    11.3    +      -       -      -
    170D  LYS      5.0     0.4    -      -       -      -
    198D  SER*     5.3     2.3    +      -       -      +
    229D  GLU*     1.3    73.9    -      -       -      +
    231D  GLY*     1.3    62.9    +      -       -      +
    232D  PHE      3.2     3.1    -      -       -      -
    233D  ASP*     3.0    23.7    +      -       -      +
    234D  ALA*     3.6     4.3    +      -       -      +
    263D  HIS      5.8     0.2    -      -       -      -
    296D  TYR*     4.0    22.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 231 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167D  PHE*     3.7    27.3    -      -       -      -
    229D  GLU      3.3     6.7    +      -       -      -
    230D  GLY*     1.3    76.3    -      -       -      +
    232D  PHE*     1.3    52.8    +      -       -      +
    234D  ALA*     3.1     4.9    +      -       -      +
    235D  ILE*     2.8    36.2    +      -       -      +
    256D  PHE*     3.7    23.2    -      -       -      -
    262D  PHE*     5.6     1.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 232 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229D  GLU      5.1     0.2    +      -       -      -
    230D  GLY      3.2     1.0    -      -       -      -
    231D  GLY*     1.3    75.7    -      -       -      +
    233D  ASP*     1.3    64.7    +      -       -      +
    235D  ILE*     4.2    14.1    -      -       +      -
    236D  MET*     3.2    17.2    +      -       -      +
    256D  PHE*     5.1     4.7    -      +       -      -
    262D  PHE*     3.1    53.6    -      +       +      -
    263D  HIS      3.7    16.8    +      -       -      +
    264D  PHE*     4.3     2.7    -      -       +      -
    296D  TYR*     5.0     2.9    -      -       +      -
    297D  PRO*     3.3    42.7    -      -       +      +
    299D  ILE*     3.9    19.3    -      -       +      -
    302D  LEU*     3.5    32.2    -      -       +      +
    328D  LEU*     4.0    24.9    -      -       +      -
    332D  ILE*     5.8     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 233 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170D  LYS*     2.7    38.8    +      -       -      +
    198D  SER*     4.1    12.9    +      -       -      +
    199D  TYR*     5.8     0.4    -      -       +      -
    230D  GLY*     3.0    12.1    +      -       -      +
    232D  PHE*     1.3    78.0    -      -       -      +
    234D  ALA*     1.3    62.4    +      -       -      +
    236D  MET*     3.3     4.8    +      -       -      +
    237D  GLN*     3.1    26.9    +      -       -      +
    277D  ASN*     4.0     9.6    +      -       -      +
    288D  TYR*     3.8    24.9    +      -       +      -
    294D  TYR      4.8     0.2    -      -       -      +
    295D  ASP      4.2     0.2    -      -       -      +
    296D  TYR*     3.6    17.2    +      -       -      -
    297D  PRO*     3.6    18.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 234 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128D  LEU*     3.6    17.3    -      -       +      -
    167D  PHE*     3.6    30.7    -      -       +      -
    199D  TYR*     3.9    25.9    -      -       +      +
    230D  GLY      3.6     1.2    +      -       -      +
    231D  GLY      3.1     8.7    +      -       -      +
    233D  ASP*     1.3    76.1    -      -       -      +
    235D  ILE*     1.3    66.9    +      -       -      +
    237D  GLN*     3.1     3.0    +      -       -      +
    238D  VAL*     2.8    25.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 235 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128D  LEU*     3.7     8.5    -      -       +      +
    231D  GLY      2.8    21.1    +      -       -      +
    232D  PHE*     3.9    15.5    -      -       +      +
    234D  ALA*     1.3    72.9    -      -       -      +
    236D  MET*     1.3    64.3    +      -       -      +
    238D  VAL*     3.1     4.6    +      -       -      +
    239D  ALA*     2.9    21.2    +      -       +      +
    254D  LEU*     4.0    19.5    -      -       +      +
    256D  PHE*     3.7    40.4    -      -       +      -
    302D  LEU*     3.8    32.3    -      -       +      -
    306D  LEU*     4.0    19.1    -      -       +      -
    313D  THR*     5.4     3.4    -      -       +      +
    315D  PHE*     4.7     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 236 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232D  PHE      3.2    11.0    +      -       -      +
    233D  ASP      3.4     9.9    -      -       -      +
    234D  ALA      3.2     0.2    -      -       -      -
    235D  ILE*     1.3    76.8    -      -       -      +
    237D  GLN*     1.3    73.8    +      -       -      +
    239D  ALA*     2.9    16.3    +      -       -      +
    240D  VAL*     3.1    21.2    +      -       +      +
    277D  ASN*     3.6    20.0    -      -       -      +
    279D  GLY*     4.0    11.7    -      -       -      -
    297D  PRO*     3.8    18.2    -      -       +      -
    301D  HIS*     3.4    42.0    -      -       +      +
    302D  LEU*     3.8    14.5    -      -       +      +
    305D  LYS*     3.6    30.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 237 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199D  TYR*     3.7    22.4    -      -       +      -
    233D  ASP      3.1    12.9    +      -       -      +
    234D  ALA      3.1     6.5    +      -       -      +
    236D  MET*     1.3    88.1    -      -       -      +
    238D  VAL*     1.3    63.1    +      -       -      +
    240D  VAL*     4.3     1.0    -      -       -      +
    241D  CYS*     3.1    46.7    +      -       -      +
    245D  ILE*     4.3     1.3    -      -       -      -
    277D  ASN*     5.5     0.8    +      -       -      +
    278D  ASP*     5.2     0.8    +      -       -      -
    280D  GLN      3.0    24.7    +      -       -      -
    281D  CYS*     4.0     0.2    -      -       -      +
    282D  HIS*     2.9    24.7    +      -       -      +
    283D  LEU*     4.1     2.0    -      -       +      +
    288D  TYR*     3.4    47.2    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 238 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126D  TYR*     3.8    29.8    -      -       +      -
    128D  LEU*     3.9    10.3    -      -       +      -
    199D  TYR*     3.4    30.5    -      -       +      +
    234D  ALA      2.8    22.8    +      -       -      +
    235D  ILE*     3.5     4.0    -      -       -      +
    237D  GLN*     1.3    71.8    -      -       -      +
    239D  ALA*     1.3    60.4    +      -       -      +
    241D  CYS      4.3     0.9    +      -       -      -
    245D  ILE*     3.4    14.9    -      -       +      +
    247D  TRP*     3.0    46.2    +      -       +      -
    254D  LEU*     4.1    18.8    -      -       +      -
    311D  ILE*     5.5     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 239 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235D  ILE*     2.9    12.7    +      -       +      +
    236D  MET*     2.9    11.8    +      -       -      +
    238D  VAL*     1.3    79.2    -      -       +      +
    240D  VAL*     1.3    60.8    +      -       +      +
    241D  CYS      3.7     0.4    -      -       -      -
    242D  GLY*     5.0     1.8    +      -       -      -
    247D  TRP*     4.9     5.9    +      -       -      -
    254D  LEU*     6.1     0.2    -      -       +      -
    302D  LEU*     6.3     0.4    -      -       +      -
    305D  LYS*     4.6     9.4    -      -       +      +
    306D  LEU*     4.6    13.0    -      -       +      -
    309D  ASN*     2.9    37.7    +      -       -      +
    311D  ILE*     4.5    21.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 240 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236D  MET*     3.1    24.2    +      -       +      +
    237D  GLN*     4.1     5.4    -      -       -      +
    239D  ALA*     1.3    81.9    -      -       +      +
    241D  CYS*     1.3    61.2    +      -       -      +
    242D  GLY      3.3     6.1    +      -       -      -
    279D  GLY      3.3    28.3    -      -       -      +
    280D  GLN*     3.7    21.3    -      -       -      +
    281D  CYS*     3.8    12.1    +      -       -      +
    305D  LYS*     4.0    21.5    -      -       +      -
    309D  ASN*     3.9    14.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 241 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237D  GLN*     3.1    40.8    +      -       -      +
    238D  VAL      4.3     1.0    +      -       -      -
    239D  ALA      3.7     0.4    -      -       -      -
    240D  VAL*     1.3    78.3    -      -       -      +
    242D  GLY*     1.3    66.2    +      -       -      +
    243D  SER      3.2     1.1    +      -       -      -
    244D  LEU*     2.9    25.4    +      -       +      +
    245D  ILE*     3.8    16.6    -      -       +      -
    281D  CYS*     2.1    49.4    -      -       -      -
    283D  LEU*     3.6    15.9    -      -       +      -
----------------------------------------------------------
 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