Contacts of the strand formed by residues 1175 - 1178 (chain D) in PDB entry 7C17


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 LEU1175 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1155D  ILE*     4.6     8.1    -      -       +      -
   1156D  LEU      6.1     1.1    -      -       -      +
   1163D  VAL*     3.8    17.9    -      -       +      -
   1164D  SER      3.4    20.0    -      -       -      +
   1165D  PHE*     4.8     0.4    -      -       -      +
   1166D  GLY      4.6     4.3    -      -       -      +
   1174D  ARG*     1.3    79.7    -      -       -      +
   1176D  VAL*     1.3    60.4    +      -       -      +
   1177D  ILE*     4.3     9.4    -      -       +      -
   1187D  GLU*     3.3     5.9    -      -       -      +
   1188D  GLU*     2.5    60.8    +      -       +      +
   1190D  ILE*     3.8    37.5    -      -       +      -
   1193D  TRP*     5.5     0.7    -      -       +      -
   1196D  LEU*     5.6     1.8    -      -       +      -
   1200D  GLU*     3.9    13.0    -      -       -      +
   1210D  ILE*     4.7    12.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1176 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1163D  VAL*     3.5     4.5    -      -       -      +
   1164D  SER*     2.9    57.1    +      -       -      +
   1165D  PHE      3.7    12.6    -      -       -      +
   1166D  GLY*     4.3     8.9    -      -       -      +
   1175D  LEU*     1.3    73.9    -      -       -      +
   1177D  ILE*     1.3    74.1    +      -       -      +
   1178D  THR*     4.7    15.0    -      -       +      -
   1184D  ASP      4.8     3.6    -      -       -      +
   1185D  PRO*     5.3     2.0    -      -       +      -
   1186D  TYR      4.0     4.7    -      -       -      +
   1187D  GLU*     3.8    27.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1177 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1157D  ALA*     5.5     2.5    -      -       +      -
   1158D  GLU*     4.0    24.0    -      -       +      +
   1159D  ILE*     3.8    31.2    -      -       +      +
   1162D  ILE      3.9     4.3    -      -       -      +
   1163D  VAL*     3.8    22.7    -      -       +      +
   1175D  LEU*     4.3     8.7    -      -       +      -
   1176D  VAL*     1.3    84.3    -      -       -      +
   1178D  THR*     1.3    63.4    +      -       -      +
   1179D  PRO*     4.3    12.6    -      -       +      -
   1183D  SER*     3.5     9.6    -      -       -      +
   1184D  ASP      2.9    19.6    -      -       -      +
   1186D  TYR*     3.5    20.9    +      -       +      +
   1187D  GLU      4.6     1.3    -      -       -      -
   1188D  GLU*     3.9    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR1178 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1162D  ILE*     2.7    64.1    +      -       -      +
   1164D  SER*     5.0     5.8    +      -       -      -
   1176D  VAL*     4.7    14.8    -      -       +      -
   1177D  ILE*     1.3    77.7    -      -       -      +
   1179D  PRO*     1.3    67.4    -      -       -      +
   1180D  VAL*     5.4     0.2    -      -       -      +
   1184D  ASP*     4.0    17.3    -      -       +      +
----------------------------------------------------------
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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