Contacts of the strand formed by residues 176 - 181 (chain C) in PDB entry 3P8Z


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 GLN 176 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  PRO*     3.5    20.6    -      -       -      +
     71C  VAL*     3.6     9.3    -      -       +      -
     72C  ILE*     2.8    55.1    +      -       +      +
     74C  GLU*     3.8    18.4    +      -       -      +
    141C  ASP      3.1    10.7    +      -       -      +
    142C  THR*     3.3     7.5    -      -       -      +
    143C  LEU*     2.8    25.9    +      -       -      +
    175C  ASN*     1.3    77.8    -      -       -      +
    177C  PHE*     1.3    60.1    +      -       -      +
    221C  SER*     3.3     5.9    +      -       -      -
    222C  ASN*     2.8    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 177 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  VAL*     3.4    12.5    -      -       -      +
    143C  LEU      3.0    15.5    -      -       -      +
    172C  LEU*     3.9    36.3    -      -       +      -
    175C  ASN*     3.5    16.8    -      -       -      -
    176C  GLN*     1.3    74.7    -      -       -      +
    178C  CYS*     1.3    63.4    +      -       -      +
    179C  ILE*     3.8    12.6    -      -       +      -
    200C  HIS*     4.5    15.9    -      -       +      -
    201C  GLY      4.1     6.1    -      -       -      -
    202C  GLY*     4.5     0.4    -      -       -      -
    219C  TRP*     3.5    53.6    -      +       -      -
    220C  ILE*     3.4    18.0    -      -       -      -
    221C  SER*     3.1    45.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 178 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62C  LEU*     4.5     3.1    -      -       +      -
     65C  PHE*     3.7    30.5    -      -       -      -
     71C  VAL*     3.9    20.8    -      -       +      +
     87C  TRP*     3.9    11.2    -      -       +      -
    143C  LEU      3.0     5.7    +      -       -      -
    144C  LEU*     3.3    14.3    -      -       +      -
    145C  CYS      3.0    24.3    +      -       -      +
    177C  PHE*     1.3    76.4    -      -       -      +
    179C  ILE*     1.3    61.7    +      -       -      +
    218C  TYR*     3.9    16.8    -      -       -      -
    219C  TRP      3.4     4.7    -      -       -      -
    220C  ILE*     4.0    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 179 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143C  LEU*     3.9    25.6    -      -       +      -
    145C  CYS*     3.4    10.8    -      -       +      -
    164C  VAL*     4.4     7.0    -      -       +      -
    165C  LEU*     4.7    10.1    -      -       +      -
    168C  VAL*     3.8    40.4    -      -       +      -
    172C  LEU*     4.1     9.4    -      -       +      -
    177C  PHE*     3.8    23.6    -      -       +      -
    178C  CYS*     1.3    79.6    -      -       -      +
    180C  LYS*     1.3    75.2    +      -       -      +
    181C  VAL*     3.4     2.1    +      -       +      +
    218C  TYR*     3.3     3.8    -      -       -      -
    219C  TRP*     2.8    50.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 180 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145C  CYS      2.8    13.3    +      -       -      +
    146C  ASP*     3.5    31.0    +      -       -      +
    147C  ILE      3.7    10.9    -      -       -      +
    148C  GLY*     2.5    49.4    +      -       -      +
    161C  THR*     5.7     0.5    -      -       -      +
    164C  VAL*     4.3     8.1    -      -       -      +
    165C  LEU*     5.4     0.7    -      -       -      +
    179C  ILE*     1.3    82.6    -      -       -      +
    181C  VAL*     1.3    66.2    +      -       -      +
    182C  LEU*     3.8    19.3    +      -       -      +
    216C  GLU*     3.7    27.1    +      -       +      +
    217C  MET      3.7     0.2    -      -       -      -
    218C  TYR*     3.5    28.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 181 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161C  THR*     3.7    24.0    -      -       +      -
    165C  LEU*     4.4     9.2    -      -       +      -
    179C  ILE*     3.8     9.4    -      -       +      +
    180C  LYS*     1.3    77.2    -      -       -      +
    182C  LEU*     1.3    66.9    +      -       -      +
    183C  ASN      4.0     0.2    -      -       -      +
    184C  PRO*     3.7    29.3    -      -       +      +
    189C  VAL*     4.2     0.2    -      -       +      -
    193C  LEU*     4.1    22.2    -      -       +      -
    204C  LEU*     3.8    22.7    -      -       +      -
    216C  GLU*     3.4     0.3    -      -       -      -
    217C  MET      2.6    36.6    +      -       -      +
    219C  TRP*     4.1     8.7    -      -       +      -
----------------------------------------------------------
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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