Contacts of the helix formed by residues 1434 - 1440 (chain H) in PDB entry 6C3P


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 THR1434 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1433H  GLY*     1.3    72.4    -      -       -      -
   1435H  ILE*     1.3    60.6    +      -       -      +
   1436H  ARG*     3.8    13.7    -      -       +      -
   1437H  PHE*     2.8    24.3    +      -       +      +
   1438H  ASN*     2.4    42.3    +      -       -      +
   1470H  LEU      3.2     2.1    +      -       -      -
   1471H  ASP*     3.0    26.2    -      -       -      +
   1472H  ALA      3.0    19.9    +      -       -      -
   1473H  ILE*     5.7     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE1435 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1434H  THR*     1.3    79.8    +      -       -      +
   1436H  ARG*     1.3    59.9    +      -       -      +
   1438H  ASN*     3.8     5.4    -      -       +      +
   1439H  LEU*     2.9    48.6    +      -       +      +
   1450H  LEU*     5.8     0.4    -      -       +      -
   1454H  LEU*     4.7    10.8    -      -       +      -
   1463H  VAL*     5.8     4.0    -      -       +      -
   1466H  LEU*     6.5     2.2    -      -       +      -
   1470H  LEU*     3.2    50.0    -      -       +      +
   1471H  ASP      4.6     0.2    -      -       -      +
   1472H  ALA*     5.1     7.4    -      -       +      +
   1474H  ILE*     4.0    28.0    -      -       +      -
   1481H  PHE*     6.0     0.9    -      -       +      -
   1489H  PHE*     4.1    23.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG1436 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1434H  THR*     3.8    11.0    -      -       +      -
   1435H  ILE*     1.3    76.4    -      -       -      +
   1437H  PHE*     1.3    58.1    +      -       -      +
   1440H  ASP*     2.7    37.9    +      -       -      +
   1447H  ASP*     2.7    43.2    +      -       -      -
   1450H  LEU*     3.8    13.0    -      -       -      -
   1469H  GLY      5.3     0.6    +      -       -      -
   1470H  LEU*     3.2    21.6    +      -       +      +
   1471H  ASP*     3.9    24.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE1437 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    501H  GLU*     5.9     1.1    -      -       -      -
    517H  ILE*     5.8     1.3    -      -       +      -
    518H  PHE*     3.5    32.9    -      +       -      -
    521H  ARG*     3.3    53.6    -      -       -      -
   1431H  PHE*     4.3    20.1    -      +       +      +
   1432H  SER      4.1    18.2    -      -       -      -
   1433H  GLY*     4.4     6.1    -      -       -      -
   1434H  THR*     2.8    24.5    +      -       +      +
   1436H  ARG*     1.3    74.9    -      -       -      +
   1438H  ASN*     1.3    65.3    +      -       -      +
   1439H  LEU      3.5     0.2    +      -       -      -
   1440H  ASP      3.5    21.3    -      -       -      +
   1441H  PRO*     3.9    14.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN1438 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514H  TRP*     4.6     3.1    -      -       -      -
   1430H  LEU*     5.1     1.1    -      -       +      +
   1431H  PHE*     2.3    59.2    +      -       +      +
   1433H  GLY*     3.6     4.2    -      -       -      +
   1434H  THR*     2.4    49.3    +      -       -      +
   1435H  ILE*     3.5     8.4    +      -       +      +
   1437H  PHE*     1.3    72.4    -      -       -      +
   1439H  LEU*     1.3    63.9    +      -       +      +
   1474H  ILE*     3.1    28.0    -      -       +      +
   1489H  PHE*     6.5     0.2    -      -       +      -
   1493H  ARG*     3.4    23.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1439 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514H  TRP*     3.9    11.3    -      -       -      -
   1435H  ILE*     2.9    38.1    +      -       +      +
   1438H  ASN*     1.3    81.2    -      -       +      +
   1440H  ASP*     1.3    66.8    +      -       -      +
   1441H  PRO*     3.1    12.6    -      -       -      +
   1450H  LEU*     3.9    32.3    -      -       +      +
   1453H  ALA*     5.5     1.8    -      -       +      -
   1454H  LEU*     4.7    13.5    -      -       +      -
   1489H  PHE*     4.3    10.1    -      -       +      +
   1492H  ALA*     4.2     6.1    -      -       +      -
   1493H  ARG*     3.5    40.3    -      -       +      +
   1496H  VAL*     4.0    19.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP1440 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1436H  ARG*     2.7    28.3    +      -       -      +
   1437H  PHE*     3.5    12.0    -      -       -      -
   1439H  LEU*     1.3    75.7    -      -       -      +
   1441H  PRO*     1.3    63.5    -      -       -      +
   1442H  GLU      2.9    22.1    -      -       -      +
   1443H  ARG*     4.8     2.9    -      -       -      -
   1445H  CYS*     3.2    39.0    +      -       -      +
   1450H  LEU*     3.2    31.6    -      -       -      +
   1496H  VAL*     3.8    11.4    -      -       -      +
----------------------------------------------------------
 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