Contacts of the strand formed by residues 825 - 834 (chain A) in PDB entry 1R4X


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 825 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797A  LEU*     3.9     3.7    -      -       -      +
    819A  VAL*     5.4     0.2    -      -       -      +
    820A  PRO*     5.8     0.2    -      -       -      +
    823A  LYS*     3.8    35.9    +      -       -      +
    824A  ASN*     1.3    90.4    +      -       -      +
    826A  HIS*     1.3    67.3    +      -       -      +
    846A  LEU      3.4     9.9    -      -       -      +
    847A  LEU*     3.9    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 826 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797A  LEU*     4.1    16.8    -      -       +      -
    801A  VAL*     3.7    18.6    -      -       +      +
    816A  SER*     2.7    32.2    +      -       -      -
    818A  LYS      3.3    17.2    +      -       -      -
    819A  VAL*     3.9    22.2    -      -       +      +
    820A  PRO*     4.0    19.3    -      -       +      -
    825A  THR*     1.3    79.3    -      -       -      +
    827A  THR*     1.3    85.5    +      -       -      +
    828A  LEU      4.0     1.6    +      -       -      -
    845A  ARG*     3.7     0.2    -      -       -      -
    846A  LEU*     2.8    39.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 827 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    816A  SER*     3.4    17.3    -      -       -      -
    826A  HIS*     1.3    88.0    +      -       -      +
    828A  LEU*     1.3    59.7    +      -       -      +
    829A  LEU*     3.7    28.2    +      -       +      +
    843A  ARG*     3.8    16.2    -      -       +      -
    844A  SER      3.3     8.7    -      -       -      +
    845A  ARG*     3.9    18.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 828 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    801A  VAL*     4.0    13.9    -      -       +      +
    804A  ILE*     3.8    41.3    -      -       +      -
    805A  VAL*     4.0    24.9    -      -       +      -
    812A  PRO*     4.2     2.2    -      -       +      -
    816A  SER*     3.3    34.3    -      -       -      +
    817A  ASP      4.2     0.9    -      -       -      +
    826A  HIS*     4.0     3.2    +      -       -      +
    827A  THR*     1.3    72.5    -      -       -      +
    829A  LEU*     1.3    62.4    +      -       -      +
    830A  LEU*     3.9    23.2    -      -       +      +
    842A  VAL      3.8     0.9    -      -       -      +
    843A  ARG*     3.4     4.7    -      -       -      -
    844A  SER*     2.9    39.7    +      -       -      +
    846A  LEU*     4.2     9.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 829 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    772A  PHE*     3.7    52.0    -      -       +      -
    812A  PRO*     3.3     4.2    -      -       -      +
    813A  CYS*     2.8    38.4    +      -       +      +
    814A  GLU*     4.6    15.3    -      -       +      +
    816A  SER*     2.9    19.5    +      -       -      +
    827A  THR*     3.7    27.1    -      -       +      +
    828A  LEU*     1.3    75.2    -      -       -      +
    830A  LEU*     1.3    60.8    +      -       -      +
    842A  VAL      3.5     2.7    -      -       -      -
    843A  ARG*     4.0    11.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 830 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    772A  PHE*     3.4     6.9    -      -       -      -
    804A  ILE*     4.0    18.8    -      -       +      +
    805A  VAL*     4.2    15.5    -      -       +      -
    808A  LEU*     3.8    29.8    -      -       +      -
    810A  MET*     3.6    27.3    -      -       +      +
    811A  HIS      3.3     5.6    -      -       -      +
    812A  PRO*     3.8    28.7    -      -       +      -
    828A  LEU*     3.9    13.9    -      -       +      +
    829A  LEU*     1.3    75.8    -      -       -      +
    831A  ALA*     1.3    60.4    +      -       -      +
    841A  LEU*     3.4     3.6    -      -       -      -
    842A  VAL*     2.8    50.4    +      -       +      +
    844A  SER*     6.2     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 831 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    767A  VAL*     3.4    29.0    +      -       +      +
    769A  LYS*     3.7    26.0    -      -       +      -
    772A  PHE*     4.7     0.9    -      -       +      -
    810A  MET*     3.7     5.9    -      -       -      +
    811A  HIS      2.9    29.1    +      -       -      -
    813A  CYS*     3.8     9.6    -      -       -      -
    830A  LEU*     1.3    76.2    -      -       -      +
    832A  GLY*     1.3    58.4    +      -       -      +
    840A  ILE      3.8     4.0    -      -       -      -
    841A  LEU*     3.7    11.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 832 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764A  ILE*     4.0    12.8    -      -       -      -
    765A  GLN      3.2    12.8    -      -       -      -
    766A  LYS*     4.2     0.2    -      -       -      -
    767A  VAL*     3.7     7.7    -      -       -      +
    810A  MET*     3.6     1.2    -      -       -      +
    831A  ALA*     1.3    76.3    -      -       -      +
    833A  VAL*     1.3    61.3    +      -       -      +
    839A  ASP*     3.3     8.1    -      -       -      +
    840A  ILE*     2.8    38.6    +      -       -      +
    841A  LEU*     4.9     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 833 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    630A  PHE*     3.2    17.6    -      -       +      -
    764A  ILE*     3.4     2.8    -      -       -      +
    765A  GLN*     2.8    37.6    +      -       +      +
    767A  VAL*     3.9    21.8    -      -       +      -
    832A  GLY*     1.3    75.2    -      -       -      -
    834A  PHE*     1.3    60.4    +      -       -      +
    837A  GLY*     3.4    41.3    -      -       -      +
    838A  HIS      3.7     4.7    -      -       -      +
    839A  ASP*     3.5    19.3    -      -       -      +
    840A  ILE*     4.2     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 834 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    630A  PHE*     3.5     3.8    -      -       -      -
    763A  HIS*     3.4    32.8    -      -       +      -
    764A  ILE*     4.4     9.0    -      -       +      +
    833A  VAL*     1.3    74.3    -      -       -      +
    835A  ARG*     1.3   108.8    +      -       +      +
    837A  GLY*     2.9    18.0    +      -       -      -
    838A  HIS      2.9    16.9    +      -       -      +
    840A  ILE*     4.0     9.6    -      -       +      +
    862A  GLU*     3.6    24.5    -      -       -      +
    864A  LEU*     3.8    10.8    -      -       +      -
    865A  PRO*     3.7    37.0    -      -       +      -
    868A  ILE*     3.6    35.7    -      -       +      -
----------------------------------------------------------
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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