Contacts of the strand formed by residues 838 - 848 (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 HIS 838 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    833A  VAL*     4.0     1.6    -      -       -      -
    834A  PHE*     2.9    30.6    +      -       +      +
    836A  GLY      4.3    11.3    +      -       -      -
    837A  GLY*     1.3    79.4    +      -       -      +
    839A  ASP*     1.3    63.7    +      -       -      +
    860A  SER*     4.2    13.9    +      -       -      +
    861A  LEU*     3.8    34.8    -      -       +      +
    862A  GLU*     3.1    37.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 839 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    767A  VAL*     4.8     0.5    -      -       -      +
    769A  LYS*     3.3    34.2    +      -       -      -
    775A  ALA*     5.7     1.0    -      -       -      +
    778A  GLU*     5.3     4.7    -      -       -      +
    779A  VAL*     4.5    21.8    -      -       +      +
    832A  GLY      3.3     8.7    -      -       -      +
    833A  VAL*     3.5    20.3    -      -       -      +
    837A  GLY      3.9     2.5    +      -       -      +
    838A  HIS*     1.3    70.9    -      -       -      +
    840A  ILE*     1.3    54.9    +      -       -      +
    841A  LEU*     4.2     8.4    -      -       +      +
    859A  ARG      4.7     0.2    -      -       -      -
    860A  SER*     2.8    34.0    +      -       -      -
    861A  LEU*     4.4     2.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 840 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764A  ILE*     4.2    14.8    -      -       +      -
    810A  MET*     3.3    11.6    -      -       +      +
    832A  GLY      2.8    47.9    +      -       -      +
    833A  VAL      4.2     1.3    -      -       -      +
    834A  PHE*     4.0    17.7    -      -       +      +
    839A  ASP*     1.3    74.5    -      -       -      +
    841A  LEU*     1.3    71.0    +      -       -      +
    842A  VAL*     4.3     4.7    -      -       +      -
    858A  ALA*     4.2     2.7    -      -       +      -
    859A  ARG      3.6    15.7    -      -       -      +
    860A  SER*     4.1     3.6    -      -       -      -
    865A  PRO*     4.0    37.0    -      -       +      +
    866A  VAL*     4.0    10.1    -      -       +      +
    869A  ILE*     3.9    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 841 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    769A  LYS*     4.6    11.4    -      -       +      -
    772A  PHE*     4.2     9.0    -      -       +      -
    775A  ALA*     3.6    40.2    -      -       +      +
    776A  TRP*     3.6    28.3    -      -       +      +
    779A  VAL*     3.9    16.8    -      -       +      -
    830A  LEU      3.4     3.6    -      -       -      +
    831A  ALA*     3.7    24.7    -      -       +      -
    832A  GLY      4.6     1.1    -      -       -      +
    839A  ASP*     4.7    10.5    -      -       +      +
    840A  ILE*     1.3    83.8    -      -       -      +
    842A  VAL*     1.3    65.5    +      -       -      +
    858A  ALA*     3.3     4.3    -      -       -      +
    859A  ARG*     3.0    38.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 842 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    772A  PHE*     3.7     4.7    -      -       -      -
    804A  ILE*     6.2     0.4    -      -       +      -
    808A  LEU*     4.7     4.7    -      -       +      -
    810A  MET*     3.7    20.4    -      -       +      -
    828A  LEU      3.8     0.9    -      -       -      +
    829A  LEU*     3.5     2.8    -      -       -      -
    830A  LEU*     2.8    59.6    +      -       +      +
    840A  ILE*     4.3     1.3    -      -       +      -
    841A  LEU*     1.3    81.9    -      -       -      +
    843A  ARG*     1.3    65.8    +      -       -      +
    844A  SER*     4.8     3.1    -      -       -      +
    856A  VAL*     3.7    28.3    -      -       +      -
    857A  THR      3.4     4.5    -      -       -      +
    858A  ALA*     4.3     3.4    -      -       +      -
    869A  ILE*     3.8    34.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 843 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    772A  PHE*     4.7     2.9    -      -       +      -
    776A  TRP*     3.7    44.3    -      -       +      +
    784A  GLU*     4.6     4.6    +      -       -      -
    827A  THR*     3.8    20.9    -      -       +      -
    828A  LEU      3.4     3.8    -      -       -      -
    829A  LEU*     4.0    12.1    -      -       +      -
    842A  VAL*     1.3    75.2    -      -       -      +
    844A  SER*     1.3    62.3    +      -       -      +
    845A  ARG*     3.5    55.0    -      -       +      +
    855A  GLN      3.5     2.0    +      -       -      +
    856A  VAL*     3.4     2.6    -      -       -      +
    857A  THR*     2.8    70.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 844 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    804A  ILE*     4.9     4.7    -      -       -      -
    827A  THR*     3.3     4.3    -      -       -      -
    828A  LEU*     2.9    52.4    +      -       -      -
    830A  LEU*     6.2     0.6    -      -       -      +
    842A  VAL*     4.2     3.8    -      -       -      +
    843A  ARG*     1.3    74.8    -      -       -      +
    845A  ARG*     1.3    62.3    +      -       -      +
    846A  LEU*     3.3    13.1    -      -       -      +
    854A  MET*     3.2    37.2    -      -       -      +
    855A  GLN      3.3     2.9    -      -       -      -
    856A  VAL*     3.8    11.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 845 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    826A  HIS      3.7     4.7    -      -       -      +
    827A  THR*     3.9    21.6    +      -       +      +
    843A  ARG*     3.5    53.1    -      -       -      +
    844A  SER*     1.3    71.9    +      -       -      +
    846A  LEU*     1.3    60.7    +      -       -      +
    847A  LEU*     5.7     0.2    -      -       -      +
    853A  THR      4.0     0.2    -      -       -      +
    854A  MET*     3.2     2.1    -      -       -      -
    855A  GLN*     2.8    64.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 846 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797A  LEU*     3.9    15.9    -      -       +      -
    800A  ALA*     3.8    29.4    -      -       +      -
    801A  VAL*     4.2    20.6    -      -       +      -
    804A  ILE*     4.5     4.5    -      -       +      -
    825A  THR*     3.4     7.9    -      -       -      +
    826A  HIS*     2.8    38.0    +      -       -      +
    828A  LEU*     4.2    11.0    -      -       +      +
    844A  SER*     3.3    38.6    -      -       -      +
    845A  ARG*     1.3    74.0    -      -       -      +
    847A  LEU*     1.3    60.6    +      -       -      +
    852A  VAL*     3.8    12.3    -      -       +      -
    853A  THR      3.4     5.8    -      -       -      +
    854A  MET*     3.8    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 847 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797A  LEU*     4.4     3.4    -      -       -      -
    824A  ASN*     3.5    25.4    -      -       -      +
    825A  THR*     3.9    15.0    -      -       +      -
    845A  ARG      5.7     0.2    -      -       -      +
    846A  LEU*     1.3    74.9    -      -       -      +
    848A  LEU*     1.3    60.9    +      -       -      +
    849A  LEU*     3.9    29.8    +      -       +      +
    851A  THR      3.7     1.6    -      -       -      +
    852A  VAL*     3.3     3.3    -      -       -      -
    853A  THR*     2.9    45.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 848 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    795A  LYS      3.6    31.4    -      -       -      +
    796A  THR*     4.2     9.6    -      -       -      -
    797A  LEU*     3.9    22.4    -      -       +      +
    823A  LYS      5.5     1.6    -      -       -      +
    824A  ASN*     2.8    49.6    +      -       +      +
    847A  LEU*     1.3    69.2    -      -       -      +
    849A  LEU*     1.3    62.0    +      -       -      +
    850A  ASP      3.8    12.8    -      -       -      +
    851A  THR*     3.6    23.8    -      -       -      -
    852A  VAL*     3.9     6.5    -      -       +      +
----------------------------------------------------------
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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