Contacts of the strand formed by residues 136 - 141 (chain A) in PDB entry 2Z7S


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 LYS 136 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  VAL*     5.4    11.9    -      -       +      -
     96A  LEU      2.9     8.7    -      -       -      +
     97A  LYS*     5.1    11.9    -      -       +      -
    132A  GLN*     3.4     4.1    -      -       -      +
    133A  THR*     2.6    43.9    +      -       +      +
    134A  GLU*     4.0     9.4    +      -       -      +
    135A  GLY*     1.3    81.4    -      -       -      +
    137A  LEU*     1.3    61.2    +      -       -      +
    138A  TYR*     3.7    32.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 137 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  LYS      3.4     4.9    -      -       -      +
     95A  VAL*     3.6     0.6    -      -       -      -
     96A  LEU*     2.6    51.5    +      -       +      +
     97A  LYS      6.2     0.4    -      -       -      -
    130A  ALA*     5.0     4.9    -      -       +      -
    131A  PHE      3.9     9.4    -      -       -      +
    132A  GLN*     3.7    35.9    -      -       +      +
    135A  GLY      3.9     1.0    +      -       -      +
    136A  LYS*     1.3    70.6    -      -       -      +
    138A  TYR*     1.3    68.0    +      -       -      +
    139A  LEU*     3.2    26.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 138 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  PRO*     4.0    22.1    -      -       +      +
     93A  MET*     3.7    29.8    -      -       +      -
     94A  LYS      3.5     4.0    -      -       -      -
     95A  VAL*     4.2    17.0    -      -       +      -
    130A  ALA*     3.3     7.1    -      -       -      -
    131A  PHE*     2.9    72.4    +      +       +      +
    133A  THR*     3.6    27.2    -      -       -      +
    136A  LYS*     3.7    36.7    -      -       +      +
    137A  LEU*     1.3    74.4    -      -       -      +
    139A  LEU*     1.3    64.1    +      -       -      +
    140A  ILE*     4.2     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 139 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  ALA      3.6     2.1    -      -       -      +
     93A  MET*     3.4     4.5    -      -       -      +
     94A  LYS*     2.9    57.5    +      -       +      +
     96A  LEU*     4.5    18.2    -      -       +      -
    117A  ALA*     4.9    13.7    -      -       +      -
    127A  LEU*     4.0    18.2    -      -       +      -
    129A  TYR      3.6     4.0    -      -       -      +
    130A  ALA*     4.9     3.6    -      -       +      -
    137A  LEU*     3.2    39.3    -      -       +      +
    138A  TYR*     1.3    72.8    -      -       -      +
    140A  ILE*     1.3    63.1    +      -       -      +
    141A  LEU*     3.8    14.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 140 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  PHE*     3.7    30.7    -      -       +      -
     79A  VAL*     4.8     0.2    -      -       +      -
     91A  TYR*     3.5    36.3    -      -       +      -
     92A  ALA      3.7     1.6    -      -       -      -
     93A  MET*     3.7    34.5    -      -       +      -
    127A  LEU*     3.5     2.5    -      -       -      +
    128A  HIS*     2.7    33.8    +      -       -      -
    129A  TYR*     2.7    50.0    +      -       +      +
    131A  PHE*     3.9    13.5    -      -       +      -
    138A  TYR*     5.0     0.2    -      -       +      -
    139A  LEU*     1.3    72.3    -      -       -      +
    141A  LEU*     1.3    53.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 141 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  P01      4.2    18.4    -      -       +      -
     91A  TYR*     3.5     8.8    -      -       -      +
     92A  ALA      2.8    30.5    +      -       -      +
     94A  LYS*     4.3    17.0    -      -       +      +
    117A  ALA*     5.3     5.2    -      -       +      +
    125A  VAL*     3.9    26.5    -      -       +      +
    126A  LYS      3.3    16.8    -      -       -      +
    127A  LEU*     3.8    24.2    -      -       +      -
    128A  HIS*     3.9     6.5    -      -       -      -
    139A  LEU*     3.9    28.7    -      -       +      +
    140A  ILE*     1.3    77.2    -      -       -      +
    142A  ASP*     1.3    69.2    +      -       -      +
    206A  PHE*     6.1     0.9    -      -       +      -
----------------------------------------------------------
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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