Contacts of the helix formed by residues 292 - 301 (chain A) in PDB entry 3RIG


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 292 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276A  THR*     3.6    17.2    -      -       +      -
    291A  GLY*     1.4    83.9    -      -       -      +
    293A  CYS*     1.3    58.0    +      -       -      +
    294A  GLY*     3.2     7.0    -      -       -      +
    295A  THR*     3.0    38.6    +      -       +      +
    296A  THR*     3.4     5.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 293 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  GLY*     5.1    11.0    -      -       -      -
    117A  GLY*     4.0     7.8    -      -       -      -
    248A  VAL*     3.5    26.2    -      -       +      -
    249A  GLY*     4.6    12.8    -      -       -      -
    274A  PHE*     4.2    11.9    -      -       +      +
    275A  ASN*     6.0     1.1    -      -       -      -
    291A  GLY      3.5     2.1    +      -       -      +
    292A  PRO*     1.3    70.0    -      -       -      +
    294A  GLY*     1.3    55.6    +      -       -      +
    295A  THR      3.0     4.9    -      -       -      -
    296A  THR*     3.4    15.5    -      -       -      +
    297A  LEU*     3.0    39.0    -      -       +      +
    298A  PRO*     3.1     5.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 294 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115A  ASN*     5.1     4.2    +      -       -      -
    116A  ALA*     3.6    24.4    -      -       -      +
    117A  GLY      4.1     6.5    -      -       -      -
    292A  PRO*     3.2     5.3    -      -       -      +
    293A  CYS*     1.3    78.8    -      -       -      +
    295A  THR*     1.3    59.3    +      -       -      +
    298A  PRO*     3.4    15.5    -      -       -      +
    294B  GLY      5.4     0.2    -      -       -      +
    295B  THR*     4.5    10.9    -      -       -      +
    298B  PRO*     4.5     1.6    -      -       -      +
    299B  GLU*     5.2     1.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 295 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291A  GLY*     6.2     0.2    -      -       -      -
    292A  PRO*     3.0    28.1    +      -       +      +
    293A  CYS      3.0     0.4    -      -       -      -
    294A  GLY*     1.3    81.5    -      -       -      +
    296A  THR*     1.3    73.0    +      -       +      +
    297A  LEU      3.5     0.2    -      -       -      -
    298A  PRO*     3.7     5.0    -      -       -      +
    299A  GLU*     3.7    17.9    +      -       -      +
    294B  GLY      4.9     3.6    -      -       -      +
    295B  THR*     2.8    45.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 296 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  MET*     4.2     5.1    -      -       +      +
    274A  PHE*     3.5    25.4    -      -       -      +
    289A  PHE*     4.5    11.2    +      -       +      -
    290A  GLN      3.4    27.6    -      -       -      +
    291A  GLY*     4.4     4.7    +      -       -      -
    292A  PRO      3.5     5.3    +      -       -      +
    293A  CYS*     3.4    17.0    -      -       -      +
    295A  THR*     1.3    84.0    -      -       +      +
    297A  LEU*     1.3    64.1    +      -       -      +
    299A  GLU*     3.0    16.1    +      -       -      +
    300A  ALA*     2.9    28.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 297 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  GLY*     4.1    12.8    -      -       -      -
    120A  ALA*     4.5     2.2    -      -       +      -
    121A  ILE*     3.8    26.2    -      -       +      -
    246A  LEU*     4.1    17.0    -      -       +      -
    248A  VAL*     3.7    30.3    -      -       +      -
    274A  PHE*     4.2    19.3    -      -       +      -
    293A  CYS*     3.0    27.9    +      -       +      +
    296A  THR*     1.3    78.3    +      -       -      +
    298A  PRO*     1.4    67.7    -      -       +      +
    301A  LEU*     2.9    55.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 298 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  ALA*     3.8    26.5    -      -       +      +
    120A  ALA*     3.8    13.1    -      -       +      +
    293A  CYS      3.1    15.5    -      -       -      +
    294A  GLY      3.4    19.5    -      -       -      +
    295A  THR      3.7     9.9    -      -       -      +
    296A  THR      3.7     2.5    -      -       -      -
    297A  LEU*     1.4    89.4    -      -       +      +
    299A  GLU*     1.3    59.9    +      -       -      +
    301A  LEU*     4.0     0.9    -      -       -      +
    302A  ALA*     3.3    24.8    +      -       -      +
    116B  ALA*     3.5    21.1    -      -       +      +
    119B  ARG*     6.0     0.2    -      -       -      +
    294B  GLY      4.7     0.9    -      -       -      +
    298B  PRO*     4.4    11.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 299 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  MET*     3.9    33.4    -      -       +      +
     44A  ARG*     3.7    11.6    +      -       -      -
    295A  THR*     3.7    11.2    +      -       -      +
    296A  THR*     3.0    15.6    +      -       -      +
    298A  PRO*     1.3    75.2    -      -       -      +
    300A  ALA*     1.3    66.0    +      -       -      +
    301A  LEU      3.4     0.5    +      -       -      -
    302A  ALA*     3.5    14.8    +      -       -      +
    116B  ALA*     3.8    11.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 300 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  MET*     3.6    25.1    -      -       +      -
     43A  PHE*     3.8     9.4    -      -       +      -
     44A  ARG*     2.9    21.2    +      -       -      +
     47A  PHE*     3.5    12.0    -      -       -      -
    274A  PHE*     3.5    39.5    -      -       +      -
    296A  THR      2.9     6.8    +      -       -      +
    297A  LEU*     3.9     3.1    -      -       -      +
    299A  GLU*     1.3    76.2    -      -       -      +
    301A  LEU*     1.3    62.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 301 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  PHE*     5.2     0.7    -      -       +      -
     47A  PHE*     3.5    32.9    -      -       +      -
     53A  ILE*     5.9     0.7    -      -       +      -
     55A  ILE*     4.7     4.0    -      -       +      -
    120A  ALA*     4.0    10.3    -      -       +      +
    121A  ILE*     3.8    37.7    -      -       +      +
    124A  CYS*     3.9    17.3    -      -       +      +
    127A  ARG*     2.5    33.6    +      -       -      -
    246A  LEU*     3.7    23.8    -      -       +      -
    297A  LEU*     2.9    40.4    +      -       +      +
    298A  PRO      4.0     1.8    -      -       -      +
    300A  ALA*     1.3    81.2    -      -       +      +
    302A  ALA*     1.3    53.6    +      -       -      +
----------------------------------------------------------
 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