Contacts of the helix formed by residues 236 - 249 (chain C) in PDB entry 3RIE


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 HIS 236 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50C  MET*     3.0    35.6    +      -       +      +
     51C  TRP*     3.9    14.2    -      +       -      -
    231C  GLU*     3.3    37.4    -      -       +      +
    232C  SER*     2.9    35.1    +      -       -      +
    235C  ILE*     1.3   106.5    -      -       +      +
    237C  VAL*     1.3    64.7    +      -       -      +
    238C  GLY      3.2     2.5    -      -       -      -
    239C  THR*     3.2    14.6    +      -       -      +
    240C  ILE*     3.0    24.5    +      -       +      +
    265C  PRO*     5.3     2.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 237 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    602B  GOL      6.1     0.2    -      -       -      +
    233C  LEU      3.6    22.9    -      -       -      +
    234C  TRP      5.6     0.4    -      -       -      -
    235C  ILE      3.5     4.3    +      -       -      +
    236C  HIS*     1.3    76.9    -      -       -      +
    238C  GLY*     1.3    56.5    +      -       -      +
    240C  ILE*     3.3     7.2    +      -       +      +
    241C  LYS*     2.8    51.0    +      -       +      +
    313C  PHE*     4.3    11.7    -      -       +      -
    314C  LEU*     4.1    19.7    -      -       +      -
    317C  GLU*     3.8    29.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 238 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236C  HIS      3.2     1.2    -      -       -      -
    237C  VAL*     1.3    78.6    -      -       -      +
    239C  THR*     1.4    55.2    +      -       -      +
    241C  LYS*     3.9     7.6    -      -       -      +
    242C  ASN*     3.0    37.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 239 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200C  PRO*     4.9     9.0    -      -       +      +
    208C  PHE*     4.7    12.1    -      -       +      -
    230C  CYS*     5.1     1.8    -      -       -      -
    231C  GLU*     4.3    20.6    -      -       +      -
    236C  HIS*     3.2    22.1    +      -       -      +
    238C  GLY*     1.4    70.3    -      -       -      +
    240C  ILE*     1.3    70.0    +      -       -      +
    242C  ASN*     3.1     8.9    +      -       +      +
    243C  MET*     2.8    44.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 240 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230C  CYS*     3.5    26.2    -      -       -      +
    231C  GLU*     5.0     0.7    -      -       +      -
    232C  SER      3.7     7.2    -      -       -      +
    233C  LEU*     3.6    28.0    -      -       +      -
    236C  HIS*     3.0    22.8    +      -       +      +
    237C  VAL*     3.3    10.7    +      -       -      +
    239C  THR*     1.3    77.4    -      -       -      +
    241C  LYS*     1.3    61.9    +      -       +      +
    243C  MET*     3.9     0.7    -      -       -      +
    244C  ILE*     2.9    50.5    +      -       +      +
    256C  TYR*     3.4    32.3    -      -       +      +
    314C  LEU*     4.5    16.4    -      -       +      -
    318C  ILE*     5.0     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 241 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237C  VAL*     2.8    44.4    +      -       +      +
    238C  GLY*     3.9     6.7    -      -       -      +
    240C  ILE*     1.3    73.6    -      -       +      +
    242C  ASN*     1.3    68.8    +      -       -      +
    245C  GLY*     2.9    20.6    +      -       -      -
    314C  LEU*     6.4     0.2    -      -       +      -
    317C  GLU*     3.4    37.1    +      -       +      +
    318C  ILE*     5.3     1.1    -      -       +      -
    320C  ASN*     4.0    21.9    +      -       -      +
    321C  ILE*     3.7    31.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 242 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238C  GLY      3.0    22.9    +      -       -      +
    239C  THR*     3.1     9.9    +      -       +      +
    241C  LYS*     1.3    79.6    -      -       -      +
    243C  MET*     1.3    61.7    +      -       +      +
    245C  GLY*     3.3     2.6    +      -       -      -
    246C  TYR*     3.0    56.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 243 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207C  LEU      4.2     0.4    -      -       -      +
    208C  PHE*     3.9    39.0    -      -       +      +
    213C  TYR*     3.4    41.8    -      -       +      +
    229C  GLN      6.1     0.4    -      -       -      +
    230C  CYS*     3.8    25.8    -      -       -      -
    239C  THR*     2.8    36.2    +      -       +      +
    240C  ILE      4.0     0.2    -      -       -      +
    242C  ASN*     1.3    71.6    -      -       -      +
    244C  ILE*     1.3    69.0    +      -       -      +
    246C  TYR*     3.2    26.5    +      -       +      +
    247C  ALA*     3.0    23.2    +      -       -      +
    272C  LEU*     4.1    11.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 244 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230C  CYS*     5.8     0.2    -      -       -      -
    240C  ILE*     2.9    37.9    +      -       +      +
    243C  MET*     1.3    79.1    -      -       -      +
    245C  GLY*     1.3    56.0    +      -       -      +
    247C  ALA*     3.1     2.4    +      -       -      +
    248C  LYS*     2.8    49.8    +      -       +      +
    254C  VAL*     3.9    16.4    -      -       +      +
    255C  GLU      5.3     0.9    -      -       -      +
    256C  TYR*     4.3    13.5    -      -       +      -
    272C  LEU*     3.6    23.8    -      -       +      -
    318C  ILE*     3.8    34.5    -      -       +      -
    321C  ILE*     3.5    20.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 245 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241C  LYS      2.9    15.8    +      -       -      -
    242C  ASN*     3.6     4.9    -      -       -      -
    243C  MET      3.2     0.2    -      -       -      -
    244C  ILE*     1.3    76.8    -      -       -      +
    246C  TYR*     1.4    63.3    +      -       -      +
    248C  LYS*     3.4     4.9    +      -       -      +
    249C  LYS*     3.3    29.8    +      -       -      +
    321C  ILE*     3.9    17.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 246 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  PHE      3.9     5.6    +      -       -      -
    209C  ASN*     3.6    26.8    -      -       -      +
    210C  GLN*     3.0    63.2    +      -       +      +
    213C  TYR*     4.5    11.0    -      -       +      -
    242C  ASN*     3.0    41.4    +      -       +      +
    243C  MET*     3.2    32.0    +      -       +      +
    245C  GLY*     1.4    74.4    -      -       -      +
    247C  ALA*     1.3    64.9    +      -       -      +
    249C  LYS*     3.4     8.1    +      -       -      -
    250C  LEU*     3.8     6.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 247 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213C  TYR*     4.6     8.3    -      -       +      -
    243C  MET      3.0    17.1    +      -       -      +
    244C  ILE      3.7     2.0    -      -       -      +
    246C  TYR*     1.3    77.9    -      -       -      +
    248C  LYS*     1.3    59.0    +      -       -      +
    250C  LEU      3.1     3.5    +      -       -      -
    251C  PHE*     2.8    39.1    +      -       +      +
    254C  VAL*     3.7    23.6    -      -       +      -
    272C  LEU*     4.4     5.4    -      -       +      -
    274C  CYS*     3.7    25.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 248 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244C  ILE*     2.8    36.3    +      -       +      +
    245C  GLY*     3.9     5.4    -      -       -      +
    246C  TYR      3.2     0.4    -      -       -      -
    247C  ALA*     1.3    75.5    -      -       -      +
    249C  LYS*     1.3    64.4    +      -       -      +
    250C  LEU      3.1     1.1    +      -       -      -
    251C  PHE      3.8    10.7    -      -       -      +
    254C  VAL*     3.8    25.4    -      -       +      +
    318C  ILE*     5.1     5.7    +      -       +      +
    321C  ILE*     4.0    29.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 249 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210C  GLN*     3.6    24.0    -      -       -      +
    245C  GLY      3.3    19.0    +      -       -      +
    246C  TYR*     3.8     6.5    -      -       -      +
    247C  ALA      3.3     1.4    -      -       -      -
    248C  LYS*     1.3    76.6    -      -       -      +
    250C  LEU*     1.3    63.1    +      -       +      +
----------------------------------------------------------
 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