Contacts of the strand formed by residues 742 - 745 (chain C) in PDB entry 1RHM


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 ILE 742 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    738C  GLY*     3.1     3.3    -      -       -      -
    739C  GLU*     2.9    51.6    +      -       +      +
    740C  GLU      3.8     9.0    -      -       -      +
    741C  GLY*     1.3    86.4    -      -       -      +
    743C  ILE*     1.3    72.2    +      -       -      +
    744C  PHE*     4.3     9.6    -      -       +      -
    755C  PRO*     3.5    31.9    -      -       +      -
    756C  VAL      3.5     9.6    -      -       -      +
    757C  ASP*     4.2    12.3    -      -       +      +
    758C  LEU*     4.4     1.0    -      -       -      +
    784C  ALA*     5.4     1.0    -      -       -      +
    785C  CYS      4.7     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 743 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    668C  ILE*     6.1     0.2    -      -       +      -
    711C  ILE*     4.1    23.1    -      -       +      -
    734C  LEU*     3.8    34.3    -      -       +      -
    736C  SER*     5.3     6.1    -      -       -      -
    737C  HIS      3.6     7.9    -      -       -      +
    742C  ILE*     1.3    78.6    -      -       -      +
    744C  PHE*     1.3    66.5    +      -       -      +
    755C  PRO*     3.4     1.2    -      -       -      +
    756C  VAL*     2.8    46.0    +      -       +      +
    758C  LEU*     3.9    29.4    -      -       +      +
    761C  ILE*     3.9    17.0    -      -       +      -
    782C  ILE*     4.7    11.9    -      -       +      -
    784C  ALA*     5.2     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 744 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    670C  ASN*     3.1     8.5    -      -       -      +
    673C  PHE*     3.7    16.2    -      +       +      -
    675C  THR*     4.7    15.7    -      -       +      -
    676C  MET*     4.4    26.5    -      -       +      -
    711C  ILE*     4.6     2.8    -      -       -      +
    736C  SER*     2.5    23.6    +      -       -      -
    737C  HIS*     2.9    20.2    +      -       +      +
    738C  GLY*     3.6    26.5    -      -       -      -
    739C  GLU*     4.3    23.3    -      -       +      -
    742C  ILE*     4.3     3.1    -      -       +      -
    743C  ILE*     1.3    80.1    -      -       -      +
    745C  GLY*     1.3    62.1    +      -       -      +
    754C  GLY*     3.4    17.5    -      -       -      -
    755C  PRO*     3.9    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 745 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    670C  ASN*     3.6     5.4    -      -       -      -
    673C  PHE*     3.8     6.6    -      -       -      -
    706C  LEU      3.6     2.7    -      -       -      -
    708C  ARG*     3.6    24.0    -      -       -      -
    711C  ILE*     4.1     6.1    -      -       -      -
    743C  ILE      3.9     1.6    +      -       -      -
    744C  PHE*     1.3    72.6    -      -       -      +
    746C  THR*     1.3    58.3    +      -       -      -
    747C  ASN      3.0     4.0    -      -       -      -
    754C  GLY*     2.3    43.2    +      -       -      +
    756C  VAL*     4.2     2.4    -      -       -      +
----------------------------------------------------------
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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