Contacts of the helix formed by residues 922 - 937 (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 ASP 922 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    886A  ARG*     4.2    21.8    -      -       -      +
    890A  ILE*     5.7     0.3    -      -       -      +
    920A  ASN*     3.2    11.4    -      -       +      +
    921A  HIS*     1.3    80.8    +      -       -      +
    923A  GLU*     1.3    68.3    +      -       -      +
    924A  GLU*     3.3    28.9    +      -       -      +
    925A  SER*     2.6    29.4    +      -       -      -
    926A  LEU*     2.9    20.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 923 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    921A  HIS      4.0     0.4    +      -       -      -
    922A  ASP*     1.3    73.0    -      -       -      +
    924A  GLU*     1.3    59.5    +      -       +      +
    926A  LEU*     3.1     5.6    +      -       +      +
    927A  GLU*     2.8    31.8    +      -       -      +
    965A  THR*     6.0     4.0    -      -       +      +
    966A  SER*     3.6    28.1    +      -       -      +
    968A  ARG*     3.2    20.0    +      -       -      +
    969A  ILE*     3.4    25.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 924 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    887A  ARG*     5.2     9.8    -      -       -      +
    890A  ILE*     4.4    29.0    -      -       +      +
    922A  ASP*     3.3    13.9    +      -       -      +
    923A  GLU*     1.3    78.1    -      -       +      +
    925A  SER*     1.3    61.8    +      -       -      +
    927A  GLU*     4.0     6.1    -      -       -      +
    928A  CYS*     3.0    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 925 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    886A  ARG*     4.9     1.4    -      -       -      +
    890A  ILE*     3.6    19.9    -      -       -      +
    917A  LEU*     3.6    16.3    -      -       -      +
    920A  ASN*     3.1    37.9    +      -       -      -
    922A  ASP*     2.6    28.1    +      -       -      -
    924A  GLU*     1.3    77.1    -      -       -      +
    926A  LEU*     1.3    58.6    +      -       -      +
    928A  CYS*     3.2     4.7    +      -       -      +
    929A  LEU*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 926 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    917A  LEU      4.7     6.1    -      -       -      +
    918A  LEU*     4.9     2.0    -      -       +      -
    921A  HIS*     3.9    26.7    -      -       -      +
    922A  ASP      2.9    15.9    +      -       -      +
    923A  GLU*     3.5     7.0    -      -       -      +
    925A  SER*     1.3    77.0    -      -       -      +
    927A  GLU*     1.3    58.3    +      -       -      +
    929A  LEU*     3.1    22.6    +      -       +      +
    930A  CYS*     2.8    32.5    +      -       -      -
    959A  ILE*     4.0    31.6    -      -       +      -
    965A  THR*     3.9    17.0    -      -       +      -
    969A  ILE*     3.5    31.9    -      -       +      -
    973A  LEU*     4.3     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 927 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    923A  GLU      2.8    20.7    +      -       -      +
    924A  GLU*     4.0     5.1    -      -       -      +
    926A  LEU*     1.3    69.4    -      -       -      +
    928A  CYS*     1.3    61.1    +      -       -      +
    930A  CYS*     3.2     1.5    +      -       -      +
    931A  ARG*     2.9    62.3    +      -       -      +
    968A  ARG*     2.4    37.5    +      -       -      -
    969A  ILE*     4.2     3.1    -      -       +      +
    972A  MSE      3.5    29.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 928 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    890A  ILE*     4.1    27.1    -      -       +      -
    893A  ILE*     4.3    16.2    -      -       -      -
    894A  LYS*     5.3     4.7    -      -       -      -
    917A  LEU*     3.8    24.7    -      -       +      -
    924A  GLU      3.0    14.8    +      -       -      +
    925A  SER      3.3     9.2    -      -       -      +
    927A  GLU*     1.3    76.3    -      -       -      +
    929A  LEU*     1.3    58.1    +      -       -      +
    931A  ARG*     3.9     7.4    -      -       -      +
    932A  LEU*     2.8    34.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 929 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    914A  VAL*     3.9    25.8    -      -       +      +
    917A  LEU*     3.6    26.7    -      -       +      +
    918A  LEU*     3.7    32.3    -      -       +      -
    925A  SER      2.9    12.8    +      -       -      +
    926A  LEU*     3.1    22.2    +      -       +      +
    928A  CYS*     1.3    77.4    -      -       -      +
    930A  CYS*     1.3    58.5    +      -       -      +
    932A  LEU*     4.3     1.6    -      -       +      -
    933A  LEU*     2.8    54.4    +      -       +      +
    956A  MSE      4.3    17.3    -      -       +      -
    973A  LEU*     4.9     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 930 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    926A  LEU*     2.8    21.3    +      -       -      +
    927A  GLU*     3.6     5.2    -      -       -      +
    929A  LEU*     1.3    74.6    -      -       -      +
    931A  ARG*     1.3    58.9    +      -       -      +
    933A  LEU*     5.0     0.2    -      -       -      -
    934A  THR*     2.6    39.0    +      -       -      -
    956A  MSE      6.1     0.7    -      -       -      -
    969A  ILE*     5.7     0.4    -      -       -      -
    972A  MSE      3.7    25.8    -      -       +      -
    973A  LEU*     3.7    44.6    -      -       -      -
    976A  VAL*     3.8    22.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 931 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    927A  GLU*     2.9    52.6    +      -       +      +
    928A  CYS*     3.9     5.2    -      -       -      +
    930A  CYS*     1.3    72.1    -      -       -      +
    932A  LEU*     1.3    70.1    +      -       -      +
    934A  THR*     3.3     5.6    +      -       -      -
    935A  THR*     3.1    23.6    +      -       -      -
    972A  MSE      4.3    10.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 932 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    893A  ILE*     4.5    11.4    -      -       +      +
    894A  LYS*     6.1     1.3    -      -       -      -
    897A  GLY*     4.5    11.4    -      -       -      -
    901A  LYS*     6.4     2.0    -      -       -      -
    910A  MSE      3.6    26.2    -      -       +      +
    913A  CYS*     4.4    15.9    -      -       +      -
    914A  VAL*     4.3    21.5    -      -       +      -
    917A  LEU*     4.1    21.5    -      -       +      -
    928A  CYS*     2.8    20.4    +      -       -      +
    929A  LEU*     3.7     3.4    -      -       +      +
    931A  ARG*     1.3    74.9    -      -       -      +
    933A  LEU*     1.3    64.1    +      -       +      +
    935A  THR*     2.9    17.0    +      -       +      -
    936A  ILE*     2.9    28.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 933 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    914A  VAL*     4.1    22.4    -      -       +      -
    929A  LEU*     2.8    42.0    +      -       +      +
    932A  LEU*     1.3    73.4    -      -       +      +
    934A  THR*     1.3    59.5    +      -       -      +
    936A  ILE*     4.6     0.9    -      -       +      -
    937A  GLY*     2.7    42.0    +      -       -      +
    940A  LEU*     4.6     7.9    -      -       +      -
    949A  MSE      4.5    18.6    -      -       -      -
    952A  TYR*     5.4     0.4    -      -       +      -
    953A  PHE*     3.8    10.3    -      -       +      -
    956A  MSE      3.5    38.8    -      -       +      -
    976A  VAL*     3.8    16.4    -      -       +      -
    984A  TRP*     3.4     6.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 934 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    930A  CYS*     2.6    26.7    +      -       -      +
    931A  ARG*     3.7     6.3    -      -       -      -
    932A  LEU      3.0     0.4    +      -       -      -
    933A  LEU*     1.3    78.0    -      -       -      +
    935A  THR*     1.3    65.3    +      -       -      +
    937A  GLY      4.4     0.9    +      -       -      -
    975A  ASP*     6.1     0.3    -      -       -      +
    976A  VAL*     3.9    14.3    -      -       -      +
    979A  LEU*     4.1    27.3    -      -       +      +
    984A  TRP*     5.0     2.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 935 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    901A  LYS*     3.7    32.2    +      -       +      +
    931A  ARG      3.1    14.0    +      -       -      -
    932A  LEU*     2.9     5.3    +      -       +      -
    934A  THR*     1.3    84.0    -      -       -      +
    936A  ILE*     1.3    72.0    +      -       +      +
    939A  ASP*     4.5     4.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 936 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    900A  PHE*     3.9    24.5    -      -       +      -
    901A  LYS*     4.1    12.6    -      -       +      -
    910A  MSE      3.0    41.3    -      -       +      -
    932A  LEU*     2.9    33.7    +      -       +      +
    933A  LEU*     4.6     1.6    -      -       -      -
    935A  THR*     1.3    90.1    -      -       +      +
    937A  GLY*     1.3    69.0    +      -       -      +
    938A  LYS*     3.4     2.9    -      -       -      -
    939A  ASP*     3.0    23.4    +      -       -      +
    940A  LEU*     3.1    38.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 937 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    933A  LEU*     2.7    38.0    +      -       -      -
    934A  THR      4.4     1.0    +      -       -      -
    935A  THR      3.6     0.8    -      -       -      -
    936A  ILE*     1.3    78.2    -      -       -      +
    938A  LYS*     1.3    57.7    +      -       -      +
    940A  LEU*     3.2     4.9    +      -       -      +
    941A  ASP*     2.9    26.3    +      -       -      +
    949A  MSE      4.8     2.1    -      -       -      +
    984A  TRP*     3.6    20.8    -      -       -      -
----------------------------------------------------------
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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