Contacts of the strand formed by residues 574 - 578 (chain B) in PDB entry 2OBF


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 THR 574 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    573B  ARG*     1.3   116.7    -      -       +      +
    575B  LEU*     1.3    61.3    +      -       -      +
    576B  ILE*     6.0     0.9    -      -       -      -
    594B  PHE*     3.5     3.9    -      -       -      -
    596B  ASP*     3.3    12.8    -      -       +      -
    672B  PRO*     3.7    28.9    +      -       +      -
    674B  PRO      3.9     4.5    +      -       -      -
    675B  ALA*     3.2    23.5    -      -       -      -
    676B  ASP*     2.9    42.0    +      -       -      +
    677B  ALA      3.4     1.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 575 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    565B  PHE*     4.9     2.0    -      -       +      -
    574B  THR*     1.3    77.0    -      -       -      +
    576B  ILE*     1.3    82.5    +      -       -      +
    577B  ASP      3.9     0.4    -      -       -      +
    587B  LEU*     3.8    25.1    -      -       +      -
    590B  ALA*     4.1    14.4    -      -       +      -
    594B  PHE*     3.6    44.0    -      -       +      -
    596B  ASP*     2.8     8.4    +      -       -      +
    597B  ILE*     3.4    13.5    -      -       +      -
    598B  THR*     2.9    25.3    +      -       -      -
    677B  ALA*     3.4    17.7    -      -       +      +
    679B  VAL*     3.8    22.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 576 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    574B  THR*     6.0     1.1    -      -       -      -
    575B  LEU*     1.3    82.4    -      -       -      +
    577B  ASP*     1.3    67.5    +      -       -      +
    578B  ILE*     3.7    21.0    +      -       +      -
    598B  THR*     3.6    25.4    -      -       +      +
    600B  THR*     4.3     6.5    -      -       +      -
    665B  LEU*     4.3    15.5    -      -       +      -
    671B  ALA*     4.4     4.0    -      -       +      -
    672B  PRO*     4.3     5.4    -      -       +      +
    673B  LEU*     3.6    31.0    -      -       +      -
    675B  ALA*     3.6    17.3    -      -       +      -
    677B  ALA      3.0     6.9    +      -       -      -
    678B  LEU*     3.2    19.0    -      -       +      +
    679B  VAL      2.9    23.0    +      -       -      +
    704B  LEU*     4.5     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 577 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    575B  LEU*     3.9     1.4    -      -       -      +
    576B  ILE*     1.3    71.2    -      -       -      +
    578B  ILE*     1.3    54.7    +      -       -      +
    580B  SER*     2.5    26.6    +      -       -      +
    586B  GLN*     2.8    33.5    +      -       -      +
    587B  LEU*     4.1    22.4    -      -       +      -
    598B  THR      2.9    16.3    +      -       -      +
    599B  MET*     4.0     4.5    -      -       -      +
    600B  THR*     2.7    36.2    +      -       -      +
    679B  VAL*     3.0    30.3    -      -       +      +
    680B  SER*     4.0     3.8    +      -       -      -
    681B  ALA      4.7     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 578 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    576B  ILE*     3.9    26.0    -      -       +      +
    577B  ASP*     1.3    68.9    +      -       -      +
    579B  GLY*     1.3    68.2    +      -       -      +
    600B  THR*     3.6     2.0    -      -       -      -
    657B  ILE*     4.0    11.7    -      -       +      -
    659B  VAL*     3.8    29.2    -      -       +      -
    678B  LEU*     4.3    14.1    -      -       +      -
    679B  VAL      2.6    14.5    +      -       -      +
    680B  SER*     2.8    41.9    +      -       -      +
    681B  ALA      4.2     1.4    +      -       -      -
    683B  CYS*     3.9     4.9    -      -       -      +
    684B  LEU*     4.9     1.6    -      -       +      -
    701B  ILE*     3.8    24.0    -      -       +      -
    704B  LEU*     3.9    23.1    -      -       +      -
----------------------------------------------------------
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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