Contacts of the strand formed by residues 78 - 82 (chain C) in PDB entry 1G3I


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 PHE 78 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  THR*     5.0     1.8    -      -       +      -
     67C  ALA*     3.5    22.0    -      -       +      -
     68C  ARG*     3.8    43.3    -      -       +      -
     71C  ALA*     3.4    34.3    -      -       +      -
     76C  ALA      3.0     2.9    +      -       -      +
     77C  PRO*     1.3    73.4    -      -       -      +
     79C  ILE*     1.3    90.8    +      -       -      +
     80C  LYS*     4.0    11.4    -      -       +      -
    103C  LEU*     4.0     1.4    -      -       -      +
    106C  SER*     4.0    15.9    +      -       -      -
    253C  ILE*     3.4    21.1    -      -       +      -
    255C  PHE*     3.6    32.8    -      +       +      -
----------------------------------------------------------
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Residues in contact with ILE 79 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78C  PHE*     1.3    85.8    -      -       -      +
     80C  LYS*     1.3    81.7    +      -       -      +
     81C  VAL*     4.0    12.8    -      -       +      -
     99C  ILE*     4.3     6.3    -      -       +      +
    102C  ASP*     4.5    24.9    -      -       +      +
    103C  LEU*     3.1    41.3    -      -       +      -
    106C  SER*     5.8     0.9    -      -       -      -
    253C  ILE      3.3     1.6    +      -       -      -
    254C  VAL*     3.5    18.5    -      -       +      +
    255C  PHE*     2.8    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 80 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  THR*     3.4    26.5    +      -       +      +
     68C  ARG*     3.9    21.0    -      -       -      +
     78C  PHE*     4.0    14.8    -      -       +      -
     79C  ILE*     1.3    86.0    -      -       -      +
     81C  VAL*     1.3    80.0    +      -       -      +
     82C  GLU*     5.0     5.6    -      -       -      -
    255C  PHE*     3.4    24.7    -      -       +      +
    257C  ASP*     3.7    32.7    +      -       -      -
    452C  ATP      3.9     8.9    +      -       -      -
    287D  GLU*     3.4    23.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 81 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79C  ILE*     4.0    16.8    -      -       +      +
     80C  LYS*     1.3    88.4    -      -       -      +
     82C  GLU*     1.3    67.7    +      -       -      +
     83C  ALA*     3.5     0.6    +      -       -      -
     85C  LYS*     5.1    11.2    -      -       +      +
     86C  PHE*     4.6     7.6    -      -       +      -
     99C  ILE*     3.8    44.4    -      -       +      -
    102C  ASP*     5.9     2.0    -      -       -      +
    254C  VAL*     5.0     1.3    -      -       +      -
    255C  PHE      3.0    11.4    +      -       -      +
    256C  ILE*     3.7    15.0    -      -       +      -
    257C  ASP*     3.0    22.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 82 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  LYS*     5.0     5.0    -      -       -      +
     81C  VAL*     1.3    73.6    -      -       -      +
     83C  ALA*     1.3    65.3    +      -       -      +
     84C  THR*     3.2    23.3    -      -       -      +
     85C  LYS*     3.0    30.9    -      -       +      +
     86C  PHE*     3.5     6.6    -      -       -      -
    257C  ASP*     4.1    25.2    -      -       -      +
    258C  GLU*     3.6    14.8    -      -       +      +
    280D  ARG*     2.8    47.7    -      -       +      +
    283D  LEU*     4.2    14.5    -      -       -      +
    284D  PRO*     5.5     8.2    -      -       +      +
    287D  GLU*     5.8     0.2    -      -       -      +
    322D  GLU*     5.6     2.6    -      -       -      +
----------------------------------------------------------
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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