Contacts of the strand formed by residues 731 - 735 (chain T) in PDB entry 2P8Z


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 VAL 731 (chain T).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    730T  LEU*     1.3    77.5    -      -       -      +
    732T  GLU*     1.3    56.9    +      -       -      +
    733T  ILE*     3.9    25.4    +      -       +      +
    747T  LEU*     4.8     7.0    -      -       +      -
    768T  VAL      3.3     3.3    -      -       -      +
    769T  LYS*     3.3     4.7    -      -       -      -
    770T  ALA*     2.7    59.1    +      -       +      +
    772T  LEU*     4.2    22.2    -      -       +      -
    780T  PHE*     4.3    13.7    -      -       +      -
    795T  GLN      3.1    17.0    -      -       -      +
    796T  MET*     3.8    18.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 732 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    730T  LEU*     3.9     3.6    +      -       +      -
    731T  VAL*     1.3    73.4    -      -       -      +
    733T  ILE*     1.3    60.9    +      -       -      +
    734T  GLN*     2.7    35.2    +      -       -      +
    767T  THR*     4.8     6.9    -      -       -      -
    768T  VAL      3.6     2.7    -      -       -      +
    769T  LYS*     3.7    37.7    +      -       +      -
    793T  PHE      3.6     2.1    -      -       -      +
    794T  PRO      3.6     1.0    -      -       -      -
    795T  GLN*     2.8    62.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 733 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    731T  VAL*     3.9    26.0    -      -       +      +
    732T  GLU*     1.3    79.6    -      -       -      +
    734T  GLN*     1.3    65.7    +      -       -      +
    735T  CYS      4.0     0.3    +      -       -      -
    743T  ILE*     3.5    46.5    -      -       +      +
    747T  LEU*     5.4     2.9    -      -       +      -
    766T  PHE      3.6     0.5    -      -       -      +
    767T  THR*     3.0     5.6    -      -       -      -
    768T  VAL*     2.8    45.5    +      -       +      +
    770T  ALA*     6.2     0.7    -      -       +      -
    780T  PHE*     4.2    10.3    -      -       +      -
    784T  LEU*     4.1    15.9    -      -       +      -
    792T  ALA*     3.8    22.2    -      -       +      -
    793T  PHE      3.5    10.5    -      -       -      +
    794T  PRO*     4.1     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 734 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    732T  GLU*     2.7    36.7    +      -       -      +
    733T  ILE*     1.3    73.7    -      -       -      +
    735T  CYS*     1.3    66.3    +      -       -      +
    765T  LEU*     4.5    16.6    -      -       +      -
    766T  PHE      3.2     4.3    -      -       -      +
    767T  THR*     3.4    28.2    -      -       +      +
    791T  GLN      3.8     1.9    -      -       -      +
    792T  ALA*     3.7     0.7    -      -       -      -
    793T  PHE*     3.1    40.0    +      -       +      +
    795T  GLN*     4.5     7.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 735 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    733T  ILE      4.0     0.8    +      -       -      -
    734T  GLN*     1.3    76.7    -      -       -      +
    736T  PRO*     1.3    90.9    -      -       +      +
    739T  ALA*     3.7     7.2    -      -       +      -
    740T  VAL*     3.6    27.1    -      -       -      -
    743T  ILE*     3.9    16.6    -      -       +      -
    765T  LEU*     3.7     6.3    -      -       -      +
    766T  PHE*     2.8    36.8    +      -       -      +
    768T  VAL*     5.8     0.2    -      -       -      -
    791T  GLN      3.7    13.2    -      -       -      +
    792T  ALA*     3.7    12.6    -      -       +      -
----------------------------------------------------------
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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