Contacts of the strand formed by residues 667 - 671 (chain A) in PDB entry 1PKG


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 LEU 667 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    586A  ARG*     3.5    22.0    -      -       +      +
    589A  LEU*     4.0    14.4    -      -       +      -
    591A  PHE*     3.7    27.4    -      -       +      -
    622A  VAL*     3.7    17.3    -      -       +      -
    623A  LYS      3.5     2.2    -      -       -      -
    624A  MET*     4.3    11.4    -      -       +      -
    659A  ALA*     2.9     8.0    -      -       -      +
    660A  CYS*     2.7    54.1    +      -       +      +
    665A  PRO*     2.9    35.8    +      -       +      +
    666A  THR*     1.3    78.4    -      -       -      +
    668A  VAL*     1.3    61.5    +      -       -      +
    669A  ILE*     3.9     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 668 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    621A  ALA      3.8     0.9    -      -       -      +
    622A  VAL*     3.5     1.5    -      -       -      -
    623A  LYS*     2.6    48.3    +      -       +      +
    637A  LEU*     3.6    38.8    -      -       +      +
    640A  GLU*     4.4    13.9    -      -       -      +
    641A  LEU*     3.8    20.9    -      -       +      +
    644A  LEU*     4.7     4.9    -      -       +      -
    656A  LEU*     3.6    24.5    -      -       +      -
    658A  GLY      3.9     2.2    -      -       -      -
    659A  ALA*     4.3     0.7    -      -       -      +
    666A  THR*     4.4     7.2    -      -       +      -
    667A  LEU*     1.3    72.2    -      -       -      +
    669A  ILE*     1.3    62.3    +      -       -      +
    670A  THR*     3.8     9.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 669 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    584A  PHE*     3.8    41.1    -      -       +      -
    589A  LEU*     3.8    17.7    -      -       +      -
    611A  LEU*     4.3    15.9    -      -       +      -
    620A  VAL*     3.9    31.0    -      -       +      -
    621A  ALA      3.7     3.4    -      -       -      +
    622A  VAL*     4.1    11.0    -      -       +      -
    656A  LEU*     3.3     6.3    -      -       -      +
    657A  LEU*     2.8    33.2    +      -       +      -
    658A  GLY      2.7    28.3    +      -       -      +
    659A  ALA*     4.2     2.9    -      -       -      +
    660A  CYS*     4.1     7.4    -      -       -      -
    667A  LEU      4.5     3.6    -      -       -      +
    668A  VAL*     1.3    71.9    -      -       -      +
    670A  THR*     1.3    60.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 670 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    620A  VAL*     3.5     8.5    -      -       -      +
    621A  ALA*     2.8    31.1    +      -       -      -
    623A  LYS*     5.8     3.0    -      -       -      +
    640A  GLU*     5.6     0.3    +      -       -      -
    644A  LEU*     4.3    15.6    -      -       -      +
    654A  VAL*     3.0    26.4    -      -       +      +
    655A  ASN      3.4     6.2    +      -       -      +
    656A  LEU*     4.7     0.9    -      -       -      -
    657A  LEU*     3.6     6.3    -      -       -      -
    668A  VAL*     4.5     8.2    +      -       -      +
    669A  ILE*     1.3    75.1    +      -       -      +
    671A  GLU*     1.3    66.5    +      -       -      +
    672A  TYR      3.2     0.5    +      -       -      -
   1480A  ADP      2.7    37.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 671 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    618A  MET*     5.3     4.7    -      -       +      -
    654A  VAL*     4.4     2.9    -      -       +      -
    655A  ASN*     2.8    57.5    +      -       +      +
    657A  LEU*     3.5    14.9    -      -       +      +
    670A  THR*     1.3    72.7    -      -       +      +
    672A  TYR*     1.3    68.6    +      -       -      +
    673A  CYS*     3.2     8.0    +      -       -      -
    801A  THR*     4.8     4.3    +      -       -      +
    807A  LYS*     2.7    49.9    +      -       -      +
   1480A  ADP      3.2    16.5    +      -       -      -
----------------------------------------------------------
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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