Contacts of the strand formed by residues 568 - 572 (chain B) in PDB entry 1XMI


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 568 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390B  THR*     3.9     7.2    -      -       +      -
    392B  VAL*     3.6    33.4    -      -       +      -
    471B  ILE*     3.7    29.8    -      -       +      -
    484B  HIS*     4.5    10.8    -      -       +      -
    485B  SER      5.3     0.7    -      -       -      +
    487B  ARG      3.1     7.8    +      -       -      +
    488B  ILE*     3.4    14.9    -      -       +      +
    489B  SER      2.8    26.7    +      -       -      +
    566B  ALA*     3.3     2.5    -      -       -      +
    567B  ASP*     1.3    80.7    -      -       -      +
    569B  TYR*     1.3    65.6    +      -       -      +
    570B  LEU*     3.8    19.1    -      -       +      -
    599B  THR*     3.6    26.7    -      -       +      +
    601B  ILE*     4.4    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 569 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    489B  SER*     3.3    15.9    -      -       -      +
    516B  ARG*     3.5    13.0    +      -       -      -
    561B  ALA      3.3    22.2    -      -       -      -
    562B  VAL*     4.0     7.4    -      -       -      -
    564B  LYS      2.5    29.7    +      -       -      -
    565B  ASP*     3.6     0.2    -      -       -      -
    566B  ALA*     3.0    33.3    +      -       +      -
    567B  ASP      4.9     0.2    -      -       -      -
    568B  LEU*     1.3    77.0    -      -       -      +
    570B  LEU*     1.3    60.2    +      -       -      +
    571B  LEU*     4.0    12.6    -      -       +      -
    595B  MET*     3.4    33.2    -      -       +      -
    598B  LYS*     3.7    28.1    +      -       +      +
    599B  THR      3.0    18.1    +      -       -      +
    600B  ARG*     3.3     2.0    -      -       +      +
    601B  ILE      2.8    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 570 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468B  LEU*     3.8    31.6    -      -       +      +
    471B  ILE*     3.8    15.7    -      -       +      -
    472B  MET*     3.7    32.8    -      -       +      -
    488B  ILE*     3.8    18.2    -      -       +      -
    489B  SER      2.8    10.3    +      -       -      +
    490B  PHE*     3.4     9.2    -      -       +      -
    491B  CYS      2.8    26.5    +      -       -      -
    568B  LEU*     3.8    22.4    -      -       +      -
    569B  TYR*     1.3    78.3    -      -       -      +
    571B  LEU*     1.3    62.6    +      -       -      +
    572B  ASP      3.9     0.4    -      -       -      -
    601B  ILE*     3.6    28.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 571 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468B  LEU*     4.7     2.8    -      -       -      +
    489B  SER      5.2     0.7    -      -       -      +
    491B  CYS*     3.6    24.2    -      -       +      -
    558B  LEU*     4.2    18.4    -      -       +      -
    561B  ALA*     4.4     9.0    -      -       +      -
    562B  VAL*     5.1     1.8    -      -       +      -
    569B  TYR*     4.0    26.5    -      -       +      +
    570B  LEU*     1.3    76.1    -      -       -      +
    572B  ASP*     1.3    60.4    +      -       -      +
    573B  SER      3.3     3.3    +      -       -      -
    574B  PRO*     4.3     9.0    -      -       +      -
    591B  VAL*     5.1    11.2    -      -       +      -
    595B  MET*     4.3    13.9    -      -       +      -
    600B  ARG*     4.1    13.5    -      -       +      -
    601B  ILE      2.8    19.1    +      -       -      +
    602B  LEU*     3.4    21.6    -      -       +      +
    603B  VAL      2.9    26.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 572 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6B   MG      4.0     0.3    -      -       -      -
    465B  THR*     2.5    40.5    +      -       -      +
    468B  LEU*     3.7    17.8    -      -       +      +
    490B  PHE*     4.1     7.9    -      -       +      -
    491B  CYS      2.8    18.1    +      -       -      +
    492B  SER*     3.6     2.8    +      -       -      +
    493B  GLN*     3.3    41.5    +      -       +      +
    570B  LEU      3.9     0.8    +      -       -      -
    571B  LEU*     1.3    69.6    -      -       -      +
    573B  SER*     1.3    71.4    +      -       -      +
    574B  PRO*     3.3     1.8    -      -       -      +
    603B  VAL*     3.4    25.6    -      -       -      +
    662E  LEU*     6.0     0.2    -      -       -      +
----------------------------------------------------------
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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