Contacts of the helix formed by residues 966 - 982 (chain A) in PDB entry 1HU3


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 SER 966 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923A  GLU*     3.6    22.4    +      -       -      +
    965A  THR*     1.3    76.1    +      -       -      +
    967A  SER*     1.3    64.1    +      -       -      +
    968A  ARG*     2.9    13.0    -      -       -      +
    969A  ILE*     3.1    29.5    +      -       -      +
    970A  ARG*     3.0    19.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 967 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    963A  ARG*     5.3     0.7    -      -       -      -
    965A  THR      3.6     1.2    +      -       -      -
    966A  SER*     1.3    72.4    -      -       -      +
    968A  ARG*     1.3    60.6    +      -       -      +
    970A  ARG*     3.4    31.3    -      -       -      +
    971A  PHE*     2.8    50.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 968 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923A  GLU*     3.2    25.4    +      -       -      +
    927A  GLU*     2.4    44.1    +      -       -      -
    966A  SER*     2.9    10.7    -      -       -      +
    967A  SER*     1.3    82.2    +      -       -      +
    969A  ILE*     1.3    80.1    +      -       -      +
    971A  PHE*     2.9    20.0    +      -       -      +
    972A  MSE      2.9    23.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 969 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923A  GLU*     3.4    40.2    -      -       +      +
    926A  LEU*     3.5    33.4    -      -       +      -
    927A  GLU*     4.2     7.2    -      -       +      +
    930A  CYS*     5.7     0.4    -      -       -      -
    965A  THR*     4.6     7.2    -      -       -      -
    966A  SER*     3.1    21.0    +      -       -      +
    968A  ARG*     1.3    99.9    -      -       -      +
    970A  ARG*     1.3    57.1    +      -       -      +
    972A  MSE      3.6    20.8    -      -       +      +
    973A  LEU*     2.8    37.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 970 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    960A  VAL*     3.4    50.4    +      -       +      -
    963A  ARG*     2.8    67.7    +      -       -      +
    965A  THR*     2.5    37.1    +      -       -      +
    966A  SER      3.0     9.5    +      -       -      +
    967A  SER*     3.4    36.5    -      -       -      +
    968A  ARG      3.0     0.2    -      -       -      -
    969A  ILE*     1.3    78.4    -      -       -      +
    971A  PHE*     1.3    59.3    +      -       +      +
    973A  LEU*     3.8     9.0    -      -       -      +
    974A  GLN*     3.0    37.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 971 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    967A  SER*     2.8    38.4    +      -       -      -
    968A  ARG*     2.9     9.2    +      -       -      +
    970A  ARG*     1.3    75.4    -      -       +      +
    972A  MSE      1.3    66.3    +      -       -      +
    974A  GLN*     3.3    20.7    +      -       +      +
    975A  ASP*     3.0    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 972 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    927A  GLU*     3.5    47.1    -      -       +      +
    930A  CYS*     3.7    27.1    -      -       +      +
    931A  ARG*     4.3    13.2    -      -       +      +
    968A  ARG*     2.9    32.1    +      -       +      +
    969A  ILE*     3.6    20.9    -      -       -      +
    971A  PHE*     1.3    77.6    -      -       -      +
    973A  LEU*     1.3    63.7    +      -       -      +
    975A  ASP*     3.0    22.6    +      -       -      +
    976A  VAL*     3.3    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 973 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    926A  LEU*     4.3    15.5    -      -       +      -
    929A  LEU*     4.9     3.1    -      -       +      -
    930A  CYS*     3.7    19.7    -      -       -      -
    956A  MSE      4.2    30.2    -      -       +      +
    959A  ILE*     3.6    33.2    -      -       +      -
    960A  VAL*     3.8    20.6    -      -       +      -
    965A  THR*     5.1     1.1    -      -       -      +
    969A  ILE*     2.8    44.2    +      -       +      +
    970A  ARG*     3.8     6.3    -      -       -      +
    972A  MSE      1.3    72.3    -      -       -      +
    974A  GLN*     1.3    60.4    +      -       -      +
    975A  ASP      3.1     0.6    +      -       -      -
    976A  VAL*     3.1     5.9    +      -       -      +
    977A  ILE*     3.1    28.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 974 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    960A  VAL*     4.1    27.3    -      -       +      +
    970A  ARG*     3.0    28.5    +      -       -      +
    971A  PHE*     3.6    24.8    -      -       +      +
    972A  MSE      3.3     0.2    -      -       -      -
    973A  LEU*     1.3    75.9    -      -       -      +
    975A  ASP*     1.3    58.4    +      -       -      +
    977A  ILE*     3.8    12.0    -      -       +      +
    978A  ASP*     2.9    40.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 975 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    934A  THR*     6.1     0.2    -      -       -      +
    971A  PHE*     3.0    14.5    +      -       -      +
    972A  MSE      3.0    16.1    +      -       -      +
    974A  GLN*     1.3    77.3    -      -       -      +
    976A  VAL*     1.3    61.5    +      -       +      +
    978A  ASP*     3.2    11.8    +      -       -      +
    979A  LEU*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 976 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    930A  CYS*     3.8    28.3    -      -       +      -
    933A  LEU*     3.8    33.0    -      -       +      -
    934A  THR*     3.9    18.8    -      -       -      +
    953A  PHE*     3.6    22.1    -      -       +      -
    956A  MSE      5.1     5.8    -      -       -      -
    972A  MSE      3.5    13.9    -      -       -      +
    973A  LEU*     3.1     4.8    +      -       -      +
    975A  ASP*     1.3    77.2    -      -       +      +
    977A  ILE*     1.3    63.4    -      -       -      +
    979A  LEU*     3.3     7.6    -      -       +      +
    980A  ARG*     3.1    18.7    +      -       -      +
    984A  TRP*     4.4     9.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 977 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    953A  PHE*     4.2    28.3    -      -       +      +
    956A  MSE      4.4    11.0    -      -       +      -
    957A  GLU*     4.0    40.2    -      -       +      +
    960A  VAL*     4.5     5.8    -      -       +      -
    973A  LEU      3.1    21.4    +      -       -      +
    974A  GLN*     3.9    11.0    -      -       +      +
    976A  VAL*     1.3    75.8    -      -       -      +
    978A  ASP*     1.3    66.6    +      -       -      +
    980A  ARG*     4.0     0.9    -      -       -      +
    981A  LEU*     3.1    41.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 978 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    974A  GLN*     2.9    30.8    +      -       -      +
    975A  ASP*     3.2    13.0    +      -       -      +
    977A  ILE*     1.3    80.9    -      -       -      +
    979A  LEU*     1.3    62.2    +      -       -      +
    981A  LEU*     3.3    12.6    +      -       -      +
    982A  CYS*     3.0    30.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 979 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    934A  THR*     4.1    35.0    -      -       +      +
    975A  ASP      2.9    13.5    +      -       -      +
    976A  VAL*     3.3    12.6    -      -       -      +
    978A  ASP*     1.3    74.3    -      -       -      +
    980A  ARG*     1.3    55.8    +      -       -      +
    982A  CYS*     2.7    28.0    +      -       -      +
    984A  TRP*     3.0    62.3    +      -       +      +
    985A  VAL      3.7    18.6    -      -       -      +
    986A  SER*     4.5     8.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 980 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    941A  ASP*     3.5    18.3    +      -       -      +
    946A  LYS*     3.5    10.1    +      -       -      +
    949A  MSE      3.6    10.8    -      -       -      +
    950A  ASP*     2.4    54.4    +      -       -      +
    953A  PHE*     3.6    40.7    -      -       +      +
    954A  ASN*     5.6     0.8    +      -       -      -
    976A  VAL      3.1    11.5    +      -       -      +
    977A  ILE      4.0     2.7    -      -       -      +
    979A  LEU*     1.3    73.3    -      -       -      +
    981A  LEU*     1.3    58.5    +      -       -      +
    982A  CYS      2.7     5.4    +      -       -      -
    983A  ASN*     2.6    29.1    +      -       -      +
    984A  TRP*     3.3    35.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 981 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    977A  ILE*     3.1    36.4    +      -       +      +
    978A  ASP*     3.6    11.7    -      -       -      +
    980A  ARG*     1.3    81.9    -      -       +      +
    982A  CYS*     1.3    58.5    +      -       -      +
    983A  ASN*     3.3     8.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 982 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    978A  ASP*     3.0    19.5    +      -       -      +
    979A  LEU*     2.7    12.4    +      -       -      +
    980A  ARG      2.7     0.4    +      -       -      -
    981A  LEU*     1.3    81.1    -      -       -      +
    983A  ASN*     1.3    76.5    +      -       -      +
    984A  TRP      3.2     1.8    -      -       -      -
    985A  VAL*     3.1    31.5    +      -       -      +
----------------------------------------------------------
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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