Contacts of the helix formed by residues 1308 - 1313 (chain D) in PDB entry 6RI7


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 GLY1308 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1145D  PHE      3.6     6.3    -      -       -      -
   1146D  GLU*     3.3    30.8    +      -       -      -
   1147D  ALA*     4.5     2.1    -      -       -      +
   1218D  HIS*     5.8     1.0    +      -       -      -
   1306D  LEU*     4.2     2.6    -      -       -      +
   1307D  LEU*     1.3    74.0    -      -       -      +
   1309D  ILE*     1.3    61.0    +      -       -      -
   1310D  THR*     3.2     3.8    -      -       -      -
   1311D  LYS*     2.8    29.5    +      -       -      +
   1312D  ALA*     2.9    11.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1309 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    796D  LEU*     5.1     2.0    -      -       +      -
    799D  ARG*     3.6    42.0    -      -       +      +
    800D  LEU*     4.1    19.3    -      -       +      -
    803D  VAL*     4.1    36.0    -      -       +      +
   1142D  ALA      5.9     0.9    -      -       -      +
   1145D  PHE*     3.2    34.2    +      -       +      +
   1146D  GLU*     4.3     8.5    -      -       -      +
   1256D  ILE*     5.0     1.8    -      -       +      -
   1260D  MET*     4.2    15.5    -      -       +      -
   1307D  LEU      3.8     0.6    +      -       -      -
   1308D  GLY*     1.3    70.8    -      -       -      -
   1310D  THR*     1.3    64.6    +      -       -      +
   1311D  LYS      2.6    11.6    +      -       -      -
   1312D  ALA*     4.4     2.7    -      -       -      +
   1313D  SER*     2.9    26.2    +      -       -      -
   1325D  PHE*     5.7     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR1310 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    795D  TYR*     4.9     0.5    +      -       -      -
    799D  ARG*     4.9     5.6    -      -       -      -
   1146D  GLU*     3.1    34.8    -      -       -      +
   1308D  GLY      4.7     0.4    -      -       -      +
   1309D  ILE*     1.3    82.6    -      -       -      +
   1311D  LYS*     1.3    70.1    +      -       +      +
   1313D  SER*     3.0    14.8    +      -       -      -
   1314D  LEU*     3.5    15.8    -      -       -      +
   1325D  PHE*     4.9     1.8    -      -       -      -
   1326D  GLN*     2.8    35.5    +      -       -      +
     27N    A      5.6     5.2    -      -       -      -
     28N    A      5.9     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1311 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1146D  GLU*     5.5     0.4    -      -       -      +
   1307D  LEU*     3.9    23.1    -      -       +      -
   1308D  GLY*     2.8    14.8    +      -       -      +
   1309D  ILE      2.6     0.4    +      -       -      -
   1310D  THR*     1.3    95.6    -      -       +      +
   1312D  ALA*     1.3    57.2    +      -       -      +
   1313D  SER      3.0     1.6    -      -       -      -
   1314D  LEU*     2.3    44.7    +      -       +      +
   1315D  ALA*     3.0    10.2    +      -       -      +
   1330D  ARG*     6.4     0.4    -      -       -      +
     28N    A      4.2    32.6    +      -       -      +
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Residues in contact with ALA1312 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    803D  VAL*     4.4    13.5    -      -       +      -
   1259D  GLN      4.1    20.6    -      -       -      +
   1260D  MET*     5.1     0.4    -      -       -      +
   1262D  ARG*     3.4    15.3    +      -       +      +
   1263D  LYS*     5.8     4.7    -      -       +      -
   1307D  LEU*     4.0    23.4    -      -       +      +
   1308D  GLY      2.9    13.6    +      -       -      +
   1309D  ILE*     4.1     3.1    -      -       -      +
   1311D  LYS*     1.3    74.8    -      -       -      +
   1313D  SER*     1.3    52.2    +      -       -      +
   1315D  ALA*     4.2     2.6    -      -       -      +
   1316D  THR*     2.6    32.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER1313 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    802D  ASP      4.1    17.0    -      -       -      -
    803D  VAL*     4.9     3.1    -      -       -      +
   1309D  ILE      2.9    14.2    +      -       -      -
   1310D  THR      3.0    22.7    +      -       -      -
   1312D  ALA*     1.3    73.9    -      -       -      +
   1314D  LEU*     1.3    76.5    +      -       -      +
   1316D  THR*     2.6    23.3    +      -       -      -
   1321D  SER*     6.0     0.5    -      -       -      -
   1322D  ALA*     4.1    10.4    +      -       -      +
   1325D  PHE*     3.5    33.2    -      -       -      -
----------------------------------------------------------
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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