Contacts of the helix formed by residues 1032 - 1049 (chain A) in PDB entry 2B7A


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 SER1032 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    973A  ILE*     3.5    21.0    -      -       -      +
   1006A  GLU      3.3    21.8    -      -       -      -
   1007A  PTR      4.2     6.7    -      -       -      -
   1024A  GLU*     4.5     4.9    +      -       -      +
   1030A  LYS      5.3     0.9    +      -       -      -
   1031A  PHE*     1.3    74.6    -      -       -      +
   1033A  VAL*     1.3    65.0    +      -       -      +
   1034A  ALA*     3.4    12.3    +      -       -      +
   1035A  SER*     2.7    35.0    +      -       -      -
   1036A  ASP      3.0     6.6    +      -       -      -
   1110A  VAL*     4.5     5.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1033 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    965A  GLU*     6.2     0.4    -      -       -      +
    968A  GLY*     4.7    21.8    -      -       -      +
    971A  ARG*     6.1     0.9    -      -       -      -
    972A  TYR      5.0     1.1    -      -       -      +
    973A  ILE*     3.4    19.6    -      -       +      +
   1001A  LEU*     5.0     7.9    -      -       +      -
   1006A  GLU*     4.8     1.0    +      -       -      +
   1032A  SER*     1.3    73.8    -      -       -      +
   1034A  ALA*     1.3    56.0    +      -       -      +
   1036A  ASP*     3.1    11.4    +      -       -      +
   1037A  VAL*     2.9    31.6    +      -       +      +
   1115A  SER*     6.1     1.8    -      -       -      -
   1116A  PHE*     4.1    25.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA1034 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1032A  SER*     3.1     6.5    +      -       -      +
   1033A  VAL*     1.3    80.5    -      -       -      +
   1035A  SER*     1.3    56.6    +      -       -      +
   1037A  VAL*     3.4     8.8    +      -       -      +
   1038A  TRP      3.1    18.5    +      -       -      -
   1110A  VAL*     3.5    44.6    -      -       +      +
   1113A  ARG*     3.1    23.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER1035 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    973A  ILE*     4.4     1.7    -      -       -      +
   1022A  ALA*     4.0     7.3    +      -       -      +
   1024A  GLU*     3.8    11.9    -      -       -      -
   1025A  SER*     3.7    21.8    -      -       -      -
   1030A  LYS      4.3     1.1    -      -       -      -
   1031A  PHE*     3.4    13.1    -      -       -      +
   1032A  SER*     2.7    39.9    +      -       -      -
   1034A  ALA*     1.3    73.5    -      -       -      +
   1036A  ASP*     1.3    65.1    +      -       -      +
   1038A  TRP*     3.3     4.0    +      -       -      +
   1039A  SER*     3.1    25.3    +      -       -      -
   1113A  ARG*     3.8     7.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP1036 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    964A  MET*     3.2    28.5    -      -       +      +
    972A  TYR      4.3     1.7    -      -       -      +
    973A  ILE*     3.5    17.9    -      -       -      +
    974A  HIS*     2.8    24.8    +      -       -      +
    975A  ARG*     3.0    26.5    +      -       -      -
    976A  ASP      4.8     0.2    +      -       -      -
    977A  LEU*     3.5    11.0    +      -       +      +
   1032A  SER      3.0     7.0    +      -       -      +
   1033A  VAL*     3.1    13.9    +      -       -      +
   1035A  SER*     1.3    78.6    +      -       -      +
   1037A  VAL*     1.3    51.8    +      -       -      +
   1039A  SER*     3.3     5.8    +      -       -      -
   1040A  PHE*     2.8    32.7    +      -       -      +
   1116A  PHE*     3.8     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1037 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1033A  VAL*     2.9    23.8    +      -       +      +
   1034A  ALA*     3.5    12.3    -      -       -      +
   1035A  SER      3.3     0.2    -      -       -      -
   1036A  ASP*     1.3    73.9    -      -       -      +
   1038A  TRP*     1.3    66.6    +      -       -      +
   1040A  PHE*     3.1     5.2    +      -       -      +
   1041A  GLY      3.0    17.5    +      -       -      -
   1105A  CYS*     3.5    25.9    -      -       +      +
   1113A  ARG*     4.0    15.5    -      -       +      -
   1114A  PRO*     3.5    28.9    -      -       +      +
   1115A  SER*     5.0     0.2    -      -       -      -
   1116A  PHE*     3.6    32.3    -      -       +      +
   1119A  LEU*     4.1     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP1038 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1019A  PHE      5.5     0.8    +      -       -      -
   1020A  TRP      3.4    17.7    +      -       -      -
   1021A  TYR      3.1    17.0    +      -       -      -
   1022A  ALA*     3.6    19.7    -      -       +      -
   1023A  PRO*     3.4    25.8    -      -       +      -
   1034A  ALA      3.1    11.4    +      -       -      +
   1035A  SER      3.3     8.7    +      -       -      +
   1037A  VAL*     1.3    75.2    -      -       -      +
   1039A  SER*     1.3    58.5    +      -       -      +
   1041A  GLY*     2.9    16.5    +      -       -      -
   1042A  VAL*     3.3    16.3    +      -       +      +
   1061A  PHE*     5.8     2.8    -      +       -      -
   1082A  LEU*     3.8    21.8    -      -       +      -
   1087A  ARG*     3.4    27.6    -      -       +      -
   1105A  CYS      3.6    14.8    +      -       -      +
   1106A  TRP*     3.3    54.4    +      +       +      -
   1107A  ASN      3.7     5.8    -      -       -      -
   1113A  ARG*     3.6    17.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1039 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    975A  ARG      5.8     3.3    -      -       -      -
    976A  ASP      6.0     0.2    -      -       -      -
    977A  LEU*     3.9    27.8    +      -       -      +
   1020A  TRP*     2.6    29.6    +      -       -      +
   1021A  TYR*     4.7     4.2    -      -       -      -
   1022A  ALA      5.0     0.2    +      -       -      -
   1035A  SER      3.1    11.7    +      -       -      -
   1036A  ASP*     3.6    10.0    +      -       -      -
   1037A  VAL      3.3     0.2    -      -       -      -
   1038A  TRP*     1.3    78.6    -      -       -      +
   1040A  PHE*     1.3    56.8    +      -       -      +
   1042A  VAL*     3.0     8.9    +      -       -      +
   1043A  VAL*     2.9    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE1040 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    957A  THR*     3.5    31.6    -      -       +      -
    960A  ILE*     4.1    23.1    -      -       +      -
    961A  CYS*     3.3    29.4    -      -       -      -
    977A  LEU*     4.2     6.4    -      -       +      +
   1036A  ASP      2.8    17.5    +      -       -      +
   1037A  VAL      3.1     7.4    +      -       -      +
   1039A  SER*     1.3    73.0    -      -       -      +
   1041A  GLY*     1.3    57.3    +      -       -      +
   1043A  VAL*     3.2    15.8    +      -       +      +
   1044A  LEU*     2.9    41.1    +      -       +      +
   1101A  ILE*     4.6     1.1    -      -       +      -
   1105A  CYS*     3.9     9.6    -      -       -      -
   1116A  PHE*     3.8    17.9    -      +       +      -
   1119A  LEU*     3.8    35.0    -      -       +      -
   1123A  VAL*     5.2     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1041 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1037A  VAL      3.0     7.3    +      -       -      -
   1038A  TRP      2.9    11.4    +      -       -      -
   1040A  PHE*     1.3    78.3    -      -       -      +
   1042A  VAL*     1.3    56.0    +      -       -      +
   1044A  LEU*     3.4     7.7    +      -       -      +
   1045A  TYR      3.0    22.2    +      -       -      -
   1102A  MET*     3.6     6.5    -      -       -      +
   1105A  CYS*     3.8    18.4    -      -       -      -
   1106A  TRP*     3.3    24.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1042 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1019A  PHE      4.1     7.9    -      -       -      +
   1020A  TRP*     3.4    37.9    -      -       +      +
   1038A  TRP*     3.7    21.1    -      -       -      +
   1039A  SER*     3.0    12.7    +      -       -      +
   1041A  GLY*     1.3    72.7    -      -       -      +
   1043A  VAL*     1.3    55.3    +      -       -      +
   1045A  TYR*     3.2     3.3    +      -       -      +
   1046A  GLU*     2.8    37.2    +      -       -      +
   1057A  PRO*     3.6    25.1    -      -       +      -
   1061A  PHE*     5.9     0.7    -      -       +      -
   1088A  LEU*     4.2     8.7    -      -       +      -
   1106A  TRP*     3.6    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1043 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    960A  ILE*     4.2    28.5    -      -       +      -
    977A  LEU*     3.7    13.2    -      -       +      +
    978A  ALA*     3.6    35.7    -      -       -      +
    979A  THR*     4.0    16.8    -      -       +      +
    982A  ILE*     5.2     2.7    -      -       +      -
   1039A  SER      2.9    18.7    +      -       -      +
   1040A  PHE*     3.4    16.2    -      -       +      +
   1042A  VAL*     1.3    76.1    -      -       -      +
   1044A  LEU*     1.3    61.9    +      -       -      +
   1046A  GLU*     3.2    11.1    +      -       -      +
   1047A  LEU*     3.0    27.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1044 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    954A  LEU*     4.8     2.9    -      -       +      -
    957A  THR*     3.5    33.2    -      -       +      +
   1040A  PHE*     2.9    25.8    +      -       +      +
   1041A  GLY*     3.5    10.1    -      -       -      +
   1043A  VAL*     1.3    75.1    -      -       -      +
   1045A  TYR*     1.3    63.1    +      -       -      +
   1047A  LEU*     3.4     6.5    +      -       +      +
   1048A  PHE*     3.2    53.6    +      -       +      +
   1098A  ILE*     4.0    18.4    -      -       +      +
   1101A  ILE*     3.6    32.3    -      -       +      -
   1102A  MET*     3.8    19.7    -      -       +      +
   1123A  VAL*     5.7     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR1045 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1041A  GLY      3.0    12.2    +      -       -      +
   1042A  VAL*     3.3     7.6    -      -       -      +
   1044A  LEU*     1.3    75.0    -      -       -      +
   1046A  GLU*     1.3    66.2    +      -       -      +
   1048A  PHE*     3.2     3.3    +      -       -      -
   1049A  THR*     3.1    44.1    +      -       +      +
   1055A  LYS*     2.6    31.4    +      -       -      +
   1057A  PRO*     4.0    21.3    -      -       +      -
   1060A  GLU*     3.2    22.0    +      -       -      +
   1088A  LEU*     3.7    32.1    -      -       +      -
   1089A  PRO*     3.1    30.9    -      -       +      +
   1091A  PRO*     3.6    11.3    -      -       +      +
   1102A  MET*     3.5    29.2    -      -       +      -
   1106A  TRP*     3.9     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1046 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    938A  ARG*     4.6     8.5    +      -       -      +
    978A  ALA*     3.5     2.4    -      -       -      +
    979A  THR*     2.7    47.3    +      -       +      -
    980A  ARG*     4.8     0.7    +      -       -      -
   1020A  TRP*     2.8    44.2    +      -       +      +
   1042A  VAL      2.8    19.3    +      -       -      +
   1043A  VAL*     3.3    14.5    -      -       -      +
   1045A  TYR*     1.3    73.7    -      -       -      +
   1047A  LEU*     1.3    62.9    +      -       -      +
   1049A  THR*     2.6    25.6    +      -       -      -
   1050A  TYR      3.3     4.3    +      -       -      -
   1051A  ILE*     3.6    17.8    +      -       +      +
   1057A  PRO*     4.3    13.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1047 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    937A  LEU*     3.7    29.2    -      -       +      -
    941A  LEU*     3.4    29.7    -      -       +      +
    953A  LEU*     3.4    32.9    -      -       +      +
    956A  TYR*     4.8     2.9    -      -       +      -
    957A  THR*     3.5    26.2    -      -       -      +
    960A  ILE*     4.5    11.0    -      -       +      -
    979A  THR*     3.9    13.5    -      -       +      -
   1043A  VAL*     3.0    28.0    +      -       +      +
   1044A  LEU*     3.7    11.4    -      -       +      +
   1045A  TYR      3.3     0.2    -      -       -      -
   1046A  GLU*     1.3    76.7    -      -       -      +
   1048A  PHE*     1.3    62.8    +      -       +      +
   1050A  TYR*     3.1    15.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE1048 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    950A  HIS*     3.6    48.5    +      +       +      -
    953A  LEU*     4.0    24.9    -      -       +      -
    954A  LEU*     3.7    26.9    -      -       +      -
    957A  THR*     4.9     0.7    -      -       -      -
   1044A  LEU*     3.2    33.7    +      -       +      +
   1045A  TYR      3.2     2.4    +      -       -      -
   1047A  LEU*     1.3    77.1    -      -       +      +
   1049A  THR*     1.3    58.5    +      -       -      +
   1050A  TYR*     3.2    12.3    +      -       -      -
   1091A  PRO*     3.5    28.4    -      -       +      +
   1092A  ASP      4.0     4.7    -      -       -      +
   1094A  CYS*     4.1    18.2    -      -       +      -
   1095A  PRO*     3.9    11.0    -      -       +      -
   1098A  ILE*     3.7    20.6    -      -       +      -
   1102A  MET*     5.6     0.7    -      -       -      -
   1112B  GLN*     3.6    11.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR1049 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1045A  TYR*     3.1    51.8    +      -       +      +
   1046A  GLU*     2.6    21.8    +      -       -      -
   1048A  PHE*     1.3    75.6    -      -       -      +
   1050A  TYR*     1.3    66.9    +      -       -      +
   1051A  ILE*     3.2    11.3    +      -       -      -
   1052A  GLU*     3.2    18.5    +      -       -      +
   1055A  LYS*     4.0    23.5    +      -       +      +
   1056A  SER*     5.7     1.4    -      -       -      -
   1057A  PRO*     6.0     0.3    -      -       -      +
   1091A  PRO*     3.9    11.9    -      -       +      -
   1112B  GLN*     3.7    13.1    +      -       -      +
----------------------------------------------------------
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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).

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