Contacts of the strand formed by residues 167 - 171 (chain A) in PDB entry 5ABT


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 HIS 167 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  ARG*     3.7    30.1    +      -       -      -
    121A  ALA      3.5    22.7    -      -       -      -
    122A  GLN*     3.3    38.5    +      -       -      -
    124A  LEU      3.7    14.0    +      -       -      +
    125A  VAL*     3.6    14.9    -      -       +      -
    126A  LEU      3.0    21.3    +      -       -      -
    165A  LEU*     3.6     5.9    -      -       -      +
    166A  LYS*     1.3    95.3    -      -       +      +
    168A  VAL*     1.3    65.7    +      -       -      +
    198A  ALA*     3.6    19.4    +      -       +      +
    200A  GLN*     4.8     6.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  VAL*     4.2     2.9    -      -       -      -
    126A  LEU*     3.2    15.5    -      -       +      +
    128A  LEU*     3.9    23.6    -      -       +      -
    153A  LEU*     5.5     0.4    -      -       +      -
    157A  VAL*     4.8     0.9    -      -       +      -
    165A  LEU*     3.9    25.1    -      -       +      -
    167A  HIS*     1.3    78.7    -      -       -      +
    169A  LEU*     1.3    70.8    +      -       -      +
    170A  CYS*     4.0     2.8    +      -       +      +
    197A  ILE*     3.6    26.2    -      -       +      +
    198A  ALA      3.1     7.3    +      -       -      +
    199A  PHE*     3.3    26.0    -      -       +      -
    200A  GLN*     2.8    27.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  HIS*     3.5    27.6    -      -       +      +
     77A  GLN*     4.1     2.0    -      -       -      +
    100A  VAL*     4.1    12.3    -      -       +      -
    125A  VAL*     3.8    12.9    -      -       +      +
    126A  LEU      2.9     7.3    +      -       -      +
    127A  ALA*     3.3     6.3    -      -       +      -
    128A  LEU      2.8    27.2    +      -       -      -
    129A  ASP*     3.5     8.3    -      -       -      +
    168A  VAL*     1.3    74.4    -      -       -      +
    170A  CYS*     1.3    60.2    +      -       -      +
    171A  THR*     3.4    24.9    -      -       -      +
    200A  GLN*     3.7    14.1    -      -       +      +
    202A  SER*     3.8    10.8    -      -       -      +
    223A  ILE*     3.5    29.6    -      -       +      -
   1247A  GUO      4.3     9.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  LEU      3.4    10.5    -      -       -      +
    130A  VAL*     4.4     5.8    -      -       -      -
    153A  LEU*     3.6    31.2    -      -       +      -
    168A  VAL*     4.0     8.7    -      -       +      -
    169A  LEU*     1.3    74.5    -      -       -      +
    171A  THR*     1.3    53.5    +      -       -      +
    186A  LEU*     3.7    29.2    -      -       -      -
    187A  TYR*     2.6    40.7    +      -       +      -
    190A  VAL*     5.4     1.8    -      -       -      -
    199A  PHE*     4.6     8.7    -      -       +      -
    200A  GLN      3.1     9.0    +      -       -      +
    202A  SER*     3.3     8.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128A  LEU      3.8     0.6    +      -       -      -
    129A  ASP*     2.7    32.4    +      -       -      -
    130A  VAL*     2.9    32.5    +      -       -      +
    145A  TRP*     3.8    24.9    -      -       +      -
    169A  LEU*     3.4     5.2    -      -       -      +
    170A  CYS*     1.3    74.7    -      -       -      +
    172A  ASP*     1.3    74.0    +      -       -      +
    173A  ILE      3.4     1.5    +      -       -      +
    176A  ALA*     3.9    10.1    -      -       +      -
    202A  SER*     2.7    36.7    +      -       -      +
    203A  GLY*     4.1     0.7    -      -       -      -
   1247A  GUO      4.0     4.3    +      -       -      -
----------------------------------------------------------
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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