Contacts of the helix formed by residues 837 - 853 (chain A) in PDB entry 5A7R


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 837 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    833A  LEU      4.0     3.3    +      -       -      +
    834A  ASP*     3.4    25.9    +      -       -      +
    836A  PHE*     1.3    75.8    -      -       -      +
    838A  PRO*     1.4    67.5    -      -       +      +
    839A  GLU*     4.0    21.1    -      -       +      +
    840A  LYS*     2.8    39.6    +      -       +      +
    841A  MET*     3.0    10.6    +      -       -      -
    936A  TYR*     3.9    20.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 838 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    836A  PHE      3.6     2.5    -      -       -      +
    837A  VAL*     1.4    86.1    -      -       +      +
    839A  GLU*     1.3    62.9    +      -       -      +
    841A  MET*     3.3    13.2    +      -       +      +
    842A  ARG*     2.9    34.1    +      -       -      +
    929A  TYR*     4.4     5.5    +      -       -      +
    933A  LEU*     3.7    28.0    -      -       +      -
    936A  TYR*     3.4    39.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 839 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    837A  VAL*     4.0    11.7    -      -       +      +
    838A  PRO*     1.3    80.9    -      -       -      +
    840A  LYS*     1.3    64.4    +      -       -      +
    842A  ARG*     3.7    29.0    +      -       -      +
    843A  ARG*     3.0    26.9    +      -       -      +
   1971A  SO4      3.0    34.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 840 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    827A  LEU*     4.3     8.6    -      -       +      +
    829A  PHE*     3.9     9.0    -      -       +      -
    834A  ASP*     3.4    27.6    -      -       -      +
    835A  GLN      4.4     5.6    -      -       -      +
    837A  VAL*     2.8    23.4    +      -       +      +
    839A  GLU*     1.3    81.9    +      -       -      +
    841A  MET*     1.3    62.0    +      -       -      +
    843A  ARG*     3.4     8.0    +      -       -      +
    844A  GLU*     3.2    29.2    +      -       -      +
   1971A  SO4      3.3    28.7    +      -       -      +
   1978A  GOL      3.2    42.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 841 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    835A  GLN      3.3    18.8    -      -       -      +
    836A  PHE*     3.4    29.8    -      -       -      +
    837A  VAL      3.0     9.3    +      -       -      +
    838A  PRO*     3.8    17.0    -      -       +      +
    840A  LYS*     1.3    74.6    -      -       -      +
    842A  ARG*     1.3    59.5    +      -       -      +
    844A  GLU*     3.2     3.9    +      -       -      +
    845A  LEU*     2.9    35.8    +      -       +      +
    881A  LEU*     4.2    17.3    -      -       +      -
    885A  ILE*     4.3    18.9    -      -       +      +
    929A  TYR*     5.0     8.7    -      -       +      -
    932A  LEU*     3.9    46.4    -      -       +      +
    933A  LEU*     4.2    11.4    -      -       +      -
    936A  TYR*     4.8     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 842 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    706A  PRO      5.7     1.1    -      -       -      -
    708A  TRP*     3.8    26.5    -      -       +      -
    838A  PRO*     2.9    18.8    +      -       -      +
    839A  GLU*     3.7    37.6    +      -       -      +
    841A  MET*     1.3    73.1    -      -       -      +
    843A  ARG*     1.3    61.1    +      -       -      +
    845A  LEU*     3.7     8.7    -      -       -      +
    846A  ASN*     2.9    48.6    +      -       -      +
    929A  TYR*     4.0    17.8    +      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
    775A  LEU      5.8     0.2    +      -       -      -
    776A  ASP      5.3     0.2    -      -       -      -
    777A  HIS*     3.0    45.0    +      -       +      +
    825A  ASP*     2.8    46.3    +      -       -      -
    826A  ALA      3.7     6.7    -      -       -      -
    827A  LEU*     3.7    23.9    -      -       +      +
    839A  GLU      3.0    12.0    +      -       -      +
    840A  LYS*     3.6     6.7    -      -       -      +
    841A  MET      3.3     0.4    -      -       -      -
    842A  ARG*     1.3    75.8    -      -       -      +
    844A  GLU*     1.3    86.7    +      -       -      +
    846A  ASN*     3.4     6.2    +      -       -      +
    847A  LYS*     3.0    48.7    +      -       -      +
   1971A  SO4      3.2    28.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 844 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    826A  ALA*     3.6     3.5    -      -       -      +
    827A  LEU*     2.9    35.5    +      -       +      +
    829A  PHE*     4.0     5.7    -      -       +      -
    835A  GLN      6.2     0.2    -      -       -      +
    840A  LYS      3.2    15.7    +      -       -      +
    841A  MET*     3.2     6.0    +      -       -      +
    843A  ARG*     1.3   106.4    +      -       -      +
    845A  LEU*     1.3    64.7    +      -       -      +
    847A  LYS*     3.4     2.8    +      -       -      +
    848A  ALA*     3.0    25.6    +      -       -      +
    870A  TRP*     3.7    10.8    -      -       +      -
    882A  LYS*     3.0    32.8    +      -       -      +
    885A  ILE*     3.9    23.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 845 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    708A  TRP*     3.8    32.7    -      -       +      -
    841A  MET*     2.9    21.7    +      -       +      +
    842A  ARG*     3.7     7.6    -      -       -      +
    844A  GLU*     1.3    76.6    -      -       -      +
    846A  ASN*     1.3    56.7    +      -       -      +
    848A  ALA*     3.4     1.1    +      -       -      -
    849A  TYR*     2.9    30.0    +      -       -      +
    885A  ILE*     3.5    42.1    -      -       +      +
    888A  LEU*     3.7    25.8    -      -       +      -
    889A  ALA*     3.8     6.8    -      -       -      +
    929A  TYR*     3.8    35.4    -      -       +      -
    932A  LEU*     5.3     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 846 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    705A  PHE*     3.4    57.6    -      -       +      +
    706A  PRO      5.5     0.2    +      -       -      -
    708A  TRP*     2.8    27.9    +      -       -      +
    777A  HIS      4.9     4.5    -      -       -      +
    842A  ARG*     2.9    41.3    +      -       -      +
    843A  ARG*     3.9     6.1    -      -       -      +
    845A  LEU*     1.3    71.3    -      -       -      +
    847A  LYS*     1.3    60.8    +      -       -      +
    849A  TYR*     4.2     2.0    -      -       -      -
    850A  CYS*     2.9    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 847 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    775A  LEU*     4.2     2.0    -      -       -      +
    776A  ASP      2.9    19.6    +      -       -      -
    777A  HIS      3.4    20.5    +      -       -      +
    779A  GLU      2.9    26.8    +      -       -      +
    824A  ILE*     3.7    20.0    -      -       +      +
    825A  ASP*     2.7    44.3    +      -       -      +
    843A  ARG*     3.0    40.7    +      -       -      +
    844A  GLU      3.7     4.5    -      -       -      +
    846A  ASN*     1.3    76.6    -      -       -      +
    848A  ALA*     1.3    63.6    +      -       -      +
    850A  CYS*     3.3     6.4    +      -       +      +
    851A  GLY      3.1    17.0    +      -       -      -
    870A  TRP*     3.8    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 848 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    824A  ILE*     4.2    11.9    -      -       +      -
    844A  GLU      3.0    17.2    +      -       -      +
    845A  LEU*     4.6     0.7    -      -       -      -
    847A  LYS*     1.3    76.8    -      -       -      +
    849A  TYR*     1.3    63.1    +      -       -      +
    851A  GLY*     3.1     2.9    +      -       -      -
    852A  PHE*     3.0    41.9    +      -       +      -
    870A  TRP*     4.0    16.6    -      -       +      -
    885A  ILE*     5.0     1.1    -      -       +      -
    886A  GLN*     4.8     6.1    -      -       +      -
    889A  ALA*     3.7    21.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 849 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    702A  LEU*     4.3     6.5    -      -       +      -
    704A  ASP      4.4     7.2    +      -       -      -
    705A  PHE*     3.8    22.0    -      +       -      -
    706A  PRO*     3.7    24.5    -      -       +      +
    708A  TRP*     4.1    11.7    -      +       +      -
    845A  LEU      2.9    19.5    +      -       -      +
    846A  ASN      3.6     3.6    -      -       -      +
    848A  ALA*     1.3    77.4    -      -       -      +
    850A  CYS*     1.3    63.4    +      -       -      +
    852A  PHE*     3.1     4.0    +      -       -      +
    853A  LEU*     2.9    66.4    +      -       +      +
    889A  ALA*     3.7    13.6    -      -       +      +
    892A  ALA*     3.8    42.3    +      -       +      -
    893A  ALA*     4.0     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 850 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700A  GLN*     2.8    48.2    +      -       -      -
    702A  LEU*     3.7    30.3    -      -       +      -
    705A  PHE*     4.3     3.6    -      -       +      -
    778A  ASN      3.5    27.4    -      -       -      +
    779A  GLU      4.0     2.0    -      -       -      +
    780A  CYS*     3.7    16.4    -      -       -      -
    846A  ASN      2.9    18.3    +      -       -      +
    847A  LYS*     3.7     5.8    -      -       -      +
    849A  TYR*     1.3    77.1    -      -       -      +
    851A  GLY*     1.3    61.0    +      -       -      +
    853A  LEU      3.8     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 851 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734A  LEU*     3.8     3.3    -      -       -      +
    780A  CYS*     3.9     5.1    -      -       -      -
    822A  VAL*     3.7    26.8    -      -       -      +
    824A  ILE*     3.9    11.0    -      -       -      +
    847A  LYS      3.1    11.1    +      -       -      -
    848A  ALA      3.1     4.9    +      -       -      -
    850A  CYS*     1.3    77.0    -      -       -      +
    852A  PHE*     1.4    64.3    +      -       -      +
    854A  ARG*     2.9    26.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 852 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734A  LEU*     4.2    14.4    -      -       +      -
    736A  VAL*     4.0    14.1    -      -       +      -
    822A  VAL*     5.1     1.1    -      -       +      -
    824A  ILE*     4.4    10.8    -      -       +      -
    848A  ALA*     3.0    33.4    +      -       +      +
    849A  TYR*     4.0     1.6    -      -       -      +
    851A  GLY*     1.4    82.0    -      -       -      +
    853A  LEU*     1.3    63.0    +      -       -      +
    854A  ARG*     3.6     1.8    +      -       -      -
    862A  LEU*     5.2     0.7    -      -       -      +
    865A  VAL*     3.7    30.7    -      -       +      -
    867A  THR*     5.3     0.4    -      -       +      -
    886A  GLN*     3.8    41.3    -      -       +      -
    889A  ALA*     4.0     3.1    -      -       +      -
    890A  ALA*     3.7    28.0    -      -       +      -
    893A  ALA*     3.9    16.2    -      -       +      +
    895A  ARG*     2.9    36.1    +      -       -      -
    897A  VAL*     6.0     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 853 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700A  GLN*     3.0    17.2    +      -       -      -
    702A  LEU*     3.9    23.8    -      -       +      -
    704A  ASP      6.1     0.4    -      -       -      +
    849A  TYR*     2.9    52.6    +      -       +      +
    850A  CYS      3.8     2.4    +      -       -      +
    851A  GLY      3.6     0.2    -      -       -      -
    852A  PHE*     1.3    76.4    -      -       -      +
    854A  ARG*     1.3    83.2    +      -       -      +
    855A  PRO*     3.6    22.8    -      -       +      +
    862A  LEU*     6.6     0.2    -      -       +      -
    892A  ALA      5.1     1.1    -      -       -      +
    893A  ALA*     4.1    20.4    -      -       +      +
----------------------------------------------------------
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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