Contacts of the strand formed by residues 76 - 84 (chain C) in PDB entry 2E7A


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 LEU 76 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  PHE*     3.6    35.7    -      -       +      -
     74C  VAL*     4.8     3.1    -      -       +      -
     75C  LEU*     1.3    79.1    -      -       -      +
     77C  THR*     1.3    60.5    +      -       -      +
     97C  ILE*     3.3     5.0    -      -       -      +
     98C  ARG*     2.8    42.1    +      -       +      +
    100C  PRO*     3.4    41.1    -      -       +      -
    114C  TRP*     3.9    13.7    -      -       +      -
    116C  GLU*     4.3     9.4    -      -       +      -
    118C  ILE*     4.0     2.9    -      -       +      +
    137C  ASN*     3.5     2.7    -      -       -      -
    138C  ARG*     4.0    11.9    -      -       +      -
    141C  TYR*     3.9    30.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 77 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  PHE*     3.7     4.5    -      -       -      -
     75C  LEU*     4.7     4.0    -      -       +      +
     76C  LEU*     1.3    79.9    -      -       -      +
     78C  HIS*     1.3    62.8    +      -       -      +
     79C  THR*     4.9     9.9    -      -       -      +
     95C  SER*     5.7     0.4    -      -       -      -
     96C  ALA      3.5     6.1    -      -       -      -
     97C  ILE*     4.1    24.7    -      -       +      -
    118C  ILE*     4.6     0.9    -      -       -      -
    135C  GLU      4.5     0.4    +      -       -      -
    136C  ILE*     3.3    24.1    -      -       -      +
    137C  ASN*     2.8    43.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 78 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60C  SER*     3.0    51.2    +      -       -      -
     62C  VAL*     3.4    45.0    -      -       +      +
     77C  THR*     1.3    77.5    -      -       -      +
     79C  THR*     1.3    77.2    +      -       -      +
     80C  ILE*     4.9     0.2    -      -       -      +
     95C  SER*     3.4     1.4    -      -       -      -
     96C  ALA      3.0    30.4    +      -       -      -
    118C  ILE*     3.7    27.3    +      -       +      +
    120C  LEU*     3.5    17.0    -      -       +      +
    134C  ALA*     4.4     7.0    -      -       -      +
    135C  GLU      3.3    15.7    -      -       -      -
    136C  ILE*     4.1     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 79 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77C  THR*     4.9     8.3    -      -       -      +
     78C  HIS*     1.3    88.1    -      -       -      +
     80C  ILE*     1.3    64.1    +      -       -      +
     81C  SER*     4.8     4.0    +      -       -      -
     92C  ASN*     4.4    22.3    +      -       -      +
     94C  LEU      3.3     9.6    -      -       -      -
     95C  SER*     3.2    20.9    -      -       -      +
    120C  LEU*     3.8     2.2    -      -       -      -
    133C  SER      3.4     1.9    -      -       -      +
    134C  ALA*     3.4     1.6    -      -       -      -
    135C  GLU*     2.9    42.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 80 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  ILE*     3.8    28.9    -      -       +      -
     59C  TYR      3.8    14.1    -      -       -      +
     60C  SER*     3.6    33.7    -      -       -      +
     78C  HIS*     4.9     0.2    -      -       -      +
     79C  THR*     1.3    77.7    -      -       -      +
     81C  SER*     1.3    68.5    +      -       -      +
     92C  ASN*     3.7     1.7    -      -       -      -
     93C  LEU*     2.9    34.1    +      -       +      -
     94C  LEU*     2.8    35.5    +      -       +      +
    120C  LEU*     4.0    10.1    -      -       +      +
    132C  LEU*     4.9     3.6    -      -       +      -
    133C  SER      3.1     7.9    -      -       -      +
    134C  ALA*     4.2     9.4    -      -       +      -
    152C  PHE*     4.2     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 81 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79C  THR*     4.0     5.0    +      -       -      -
     80C  ILE*     1.3    75.5    -      -       -      +
     82C  ARG*     1.3    61.4    +      -       -      +
     83C  ILE*     5.2     3.3    -      -       -      +
     90C  PRO*     4.7    11.4    -      -       -      +
     91C  VAL      3.2    16.6    -      -       -      -
     92C  ASN*     3.7    16.6    -      -       -      -
     93C  LEU*     4.7     0.9    -      -       -      -
    131C  ARG      3.7     0.7    -      -       -      +
    132C  LEU*     3.2    10.5    -      -       -      +
    133C  SER*     2.8    48.6    +      -       -      -
    135C  GLU*     4.8     4.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 82 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  ASN*     3.1    28.3    +      -       -      +
     81C  SER*     1.3    73.5    -      -       -      +
     83C  ILE*     1.3    69.5    +      -       -      +
     84C  SER*     4.2    13.0    +      -       -      +
     89C  GLN      4.1     1.6    -      -       -      +
     90C  PRO*     3.6     1.0    -      -       -      +
     91C  VAL*     2.8    48.0    +      -       +      +
     93C  LEU*     3.9    18.6    -      -       +      +
    125C  GLN      3.7    18.0    +      -       -      -
    126C  LEU*     3.9    10.4    -      -       +      +
    127C  GLU*     3.6    23.6    -      -       -      +
    130C  ASP*     2.8    37.2    +      -       -      +
    131C  ARG      3.5     4.0    -      -       -      +
    132C  LEU*     4.0    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47C  GLN*     4.1    25.1    -      -       -      +
     81C  SER*     5.2     4.9    -      -       -      +
     82C  ARG*     1.3    80.3    -      -       -      +
     84C  SER*     1.3    68.6    +      -       -      +
     87C  HIS      4.1     8.7    -      -       -      +
     88C  ASN*     4.5    14.4    -      -       -      +
     89C  GLN      5.1     0.4    -      -       -      -
     90C  PRO*     3.7    33.0    -      -       +      -
    129C  GLY      4.2     1.6    -      -       -      +
    130C  ASP*     3.5     2.9    -      -       -      -
    131C  ARG*     2.8    54.4    +      -       +      +
    133C  SER*     5.7     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  ARG*     4.1    17.1    +      -       -      +
     83C  ILE*     1.3    81.0    -      -       -      +
     85C  THR*     1.3    62.6    +      -       -      +
     86C  THR*     3.1    21.5    +      -       -      -
     87C  HIS*     2.8    33.7    +      -       -      +
     88C  ASN*     4.4     2.3    +      -       -      -
     89C  GLN      5.6     0.2    +      -       -      -
    127C  GLU*     5.8     0.9    -      -       -      -
    130C  ASP*     3.1    24.5    -      -       -      +
----------------------------------------------------------
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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