Contacts of the strand formed by residues 749 - 752 (chain A) in PDB entry 4YOC


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 749 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    733A  TRP*     3.9     4.0    -      -       -      -
    734A  VAL*     2.9    55.8    +      -       +      +
    747A  TYR*     3.5     3.5    -      -       -      +
    748A  LYS*     1.3    95.8    -      -       +      +
    750A  VAL*     1.3    71.2    +      -       -      +
    756A  THR*     4.2    18.8    +      -       -      +
    757A  LEU      3.5     8.7    -      -       -      +
    758A  GLU*     3.6    36.6    +      -       +      -
    782A  LEU*     3.8     3.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 750 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    731A  ILE*     3.8    24.0    -      -       +      -
    732A  SER      3.4    15.3    -      -       -      +
    733A  TRP*     3.5    31.4    -      -       +      -
    734A  VAL*     4.4     0.7    -      -       -      -
    749A  LYS*     1.3    80.1    -      -       -      +
    751A  CYS*     1.3    68.9    +      -       -      +
    752A  ILE*     4.5    11.0    -      -       +      -
    756A  THR*     3.7     2.1    -      -       -      -
    757A  LEU*     2.9    60.0    +      -       +      +
    782A  LEU*     3.8    11.3    -      -       +      +
    825A  LEU*     4.0     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 751 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    730A  ARG*     3.4     8.5    -      -       -      +
    731A  ILE*     3.2     6.4    -      -       -      +
    732A  SER*     2.9    48.9    +      -       -      +
    734A  VAL*     4.3    11.7    -      -       +      -
    750A  VAL*     1.3    76.6    -      -       -      +
    752A  ILE*     1.3    62.6    +      -       -      +
    753A  ASP      4.9     0.2    -      -       -      -
    754A  ALA*     3.8    26.2    -      -       -      -
    755A  GLU      3.6    16.2    -      -       -      -
    756A  THR*     4.5     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 752 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    728A  LYS*     3.8    35.2    -      -       +      -
    730A  ARG      3.3     4.7    -      -       -      +
    731A  ILE*     4.3    22.7    -      -       +      -
    750A  VAL*     4.3    13.6    -      -       +      +
    751A  CYS*     1.3    74.4    -      -       -      +
    753A  ASP*     1.3    71.9    +      -       +      +
    754A  ALA      3.3     1.8    -      -       -      -
    755A  GLU*     2.9    41.0    +      -       +      +
    757A  LEU*     5.4     9.2    -      -       +      +
    825A  LEU*     5.4     9.2    -      -       +      +
    828A  ILE*     5.4    20.6    -      -       +      -
    829A  HIS      5.4     3.1    -      -       -      +
    830A  SER*     5.9     2.9    -      -       -      -
    831A  LYS      6.2     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