Contacts of the helix formed by residues 753 - 764 (chain B) in PDB entry 1JQI


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 PRO 753 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    665B  CYS*     4.3    13.0    -      -       +      -
    751B  GLU      4.6     1.3    -      -       -      +
    752B  MET*     1.3    93.9    -      -       +      +
    754B  ALA*     1.3    65.3    +      -       -      +
    755B  GLU      3.3     3.1    -      -       -      -
    756B  ARG*     3.0    41.5    +      -       +      +
    757B  TYR*     3.1    44.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 754 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    665B  CYS*     4.7     5.6    -      -       -      -
    736B  SER      4.7     1.9    -      -       -      +
    739B  ALA*     4.7     6.3    -      -       +      -
    740B  ILE*     3.9    27.9    -      -       +      +
    743B  LEU*     4.0    25.8    -      -       +      -
    747B  GLY*     4.4     6.1    -      -       -      +
    752B  MET*     3.4     2.3    -      -       +      -
    753B  PRO*     1.3    80.8    -      -       -      +
    755B  GLU*     1.3    61.8    +      -       -      +
    757B  TYR*     3.2    17.1    +      -       +      +
    758B  TYR*     3.1    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 755 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  LEU*     3.0    34.5    -      -       +      +
    740B  ILE*     4.1     7.9    -      -       -      -
    747B  GLY      3.7    18.1    +      -       -      +
    748B  TYR      4.7     2.9    -      -       -      +
    749B  VAL      3.9    24.5    -      -       -      +
    750B  THR*     4.2    21.0    -      -       +      +
    752B  MET      4.2     6.3    +      -       -      +
    754B  ALA*     1.3    78.1    -      -       -      +
    756B  ARG*     1.3    67.9    +      -       -      +
    758B  TYR*     3.4     4.0    +      -       -      +
    759B  ARG*     2.7    68.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 756 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430B  VAL      5.5     1.0    +      -       -      -
    433B  ALA*     3.5    38.5    +      -       -      +
    434B  ALA*     4.0    14.6    -      -       -      +
    437B  ASP*     3.9    24.5    -      -       -      +
    484B  GLY      4.3     6.3    +      -       -      -
    485B  CYS*     4.9     6.7    -      -       -      +
    486B  ALA      5.2     1.8    -      -       -      +
    753B  PRO*     3.0    32.2    +      -       +      +
    755B  GLU*     1.3    81.2    -      -       -      +
    757B  TYR*     1.3    80.1    +      -       -      +
    759B  ARG*     3.2    30.4    +      -       -      +
    760B  ASP*     2.8    54.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 757 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483B  ARG      4.9     5.6    +      -       -      -
    658B  ILE*     3.5    16.7    -      -       +      +
    661B  ALA*     3.7    41.4    +      -       +      +
    662B  SER*     3.4    31.4    -      -       -      +
    665B  CYS*     4.2     8.2    -      -       +      +
    736B  SER*     4.0     3.6    -      -       -      -
    739B  ALA*     5.7     0.9    -      -       +      -
    753B  PRO*     3.1    43.9    +      -       +      +
    754B  ALA*     3.2    16.1    +      -       +      +
    756B  ARG*     1.3    99.0    +      -       -      +
    758B  TYR*     1.3    57.6    +      -       -      +
    760B  ASP*     3.8     3.8    -      -       -      -
    761B  ALA*     2.8    33.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 758 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  LEU*     4.2    13.5    -      -       +      -
    333A  THR*     3.7     6.8    +      -       -      +
    358A  TYR*     3.1    55.8    +      +       -      -
    359A  ARG*     6.6     0.2    -      -       +      -
    362A  ARG*     3.7    29.5    -      -       +      +
    733B  THR*     4.1     7.2    +      -       +      -
    736B  SER*     3.5    21.2    -      -       -      +
    737B  HIS*     3.3    43.9    -      +       +      -
    740B  ILE*     3.7    24.7    -      -       +      -
    754B  ALA      3.1     6.1    +      -       -      +
    755B  GLU      3.5     8.5    -      -       -      +
    757B  TYR*     1.3    77.2    -      -       -      +
    759B  ARG*     1.3    65.2    +      -       +      +
    761B  ALA*     3.8     1.7    -      -       -      +
    762B  ARG*     3.3    21.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 759 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  LEU*     3.6    21.5    -      -       +      +
    348A  TYR*     2.9    20.9    +      -       -      -
    358A  TYR*     5.9     0.9    -      -       +      -
    359A  ARG*     4.7     3.1    -      -       +      +
    437B  ASP*     3.0    39.3    +      -       -      -
    438B  LYS*     6.1     0.8    -      -       -      +
    607B  LEU*     3.0    57.9    +      -       +      +
    608B  GLY*     4.3     2.4    -      -       -      -
    610B  ARG*     3.4    15.8    -      -       -      +
    755B  GLU*     2.7    46.5    +      -       -      +
    756B  ARG*     3.2    22.5    +      -       -      +
    758B  TYR*     1.3    77.9    -      -       +      +
    760B  ASP*     1.3    63.6    +      -       -      +
    762B  ARG*     3.4    13.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 760 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348A  TYR*     4.0     4.3    -      -       -      -
    437B  ASP*     4.7     2.4    -      -       -      +
    486B  ALA*     3.5    34.9    +      -       +      +
    487B  SER      5.2     0.5    +      -       -      -
    608B  GLY*     3.5     3.5    -      -       -      -
    609B  ILE*     2.8    33.7    +      -       +      +
    658B  ILE*     4.0    10.5    -      -       +      +
    756B  ARG*     2.8    49.6    +      -       -      +
    757B  TYR*     3.9     6.1    -      -       -      +
    759B  ARG*     1.3    70.9    -      -       -      +
    761B  ALA*     1.3    66.1    +      -       -      +
    763B  ILE*     3.1    24.8    -      -       -      +
    764B  THR*     4.1     0.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 761 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    658B  ILE*     4.0    14.5    -      -       +      +
    729B  SER      4.6     0.5    -      -       -      +
    732B  ALA*     3.5    38.6    -      -       +      +
    733B  THR*     3.7    10.1    +      -       -      +
    736B  SER*     3.7     6.7    -      -       -      +
    757B  TYR      2.8    18.3    +      -       -      +
    758B  TYR      3.8     3.1    -      -       -      +
    759B  ARG      3.3     0.2    -      -       -      -
    760B  ASP*     1.3    77.3    -      -       -      +
    762B  ARG*     1.3    61.3    -      -       -      +
    764B  THR*     2.7    26.8    +      -       -      -
    765B  GLU      4.1     0.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 762 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337A  HIS*     2.8    44.9    +      -       -      -
    340A  ILE*     3.7    20.3    -      -       +      +
    341A  GLN*     2.8    42.4    +      -       -      +
    348A  TYR*     4.0    10.5    -      -       +      -
    358A  TYR*     3.7    28.9    -      -       +      +
    607B  LEU*     4.1    13.7    -      -       +      -
    733B  THR*     3.9     6.2    +      -       -      -
    758B  TYR      3.3    11.0    +      -       -      +
    759B  ARG      3.5    12.3    -      -       -      +
    760B  ASP      3.2     1.2    -      -       -      -
    761B  ALA*     1.3    78.3    -      -       -      +
    763B  ILE*     1.3    61.1    +      -       -      +
    764B  THR      3.4     0.5    +      -       -      -
    765B  GLU*     3.2    26.3    +      -       -      +
    766B  ILE*     3.8     8.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 763 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348A  TYR*     3.4    36.3    -      -       +      +
    609B  ILE*     3.9    19.7    -      -       +      -
    654B  GLN*     5.4     0.2    -      -       -      +
    760B  ASP      3.1    18.9    +      -       -      +
    762B  ARG*     1.3    78.9    -      -       -      +
    764B  THR*     1.3    61.9    +      -       +      +
    766B  ILE*     2.9    29.6    +      -       +      +
    767B  TYR*     3.1    41.6    +      -       +      +
    799B  FAD      3.3    42.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 764 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    651B  ILE*     4.2     7.1    -      -       +      +
    654B  GLN*     3.6    25.1    -      -       -      +
    655B  ALA*     4.1    18.6    -      -       +      +
    658B  ILE*     4.2    16.2    -      -       +      -
    725B  LYS*     2.8    26.9    +      -       -      -
    729B  SER*     3.2    34.3    +      -       -      -
    732B  ALA*     4.4     1.1    -      -       +      +
    760B  ASP      4.2     3.1    -      -       -      +
    761B  ALA*     2.7    20.7    +      -       -      +
    763B  ILE*     1.3    78.5    -      -       +      +
    765B  GLU*     1.3    56.4    +      -       -      +
    766B  ILE      3.2     0.9    -      -       -      -
    767B  TYR*     3.9     7.9    -      -       -      -
----------------------------------------------------------
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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