Contacts of the strand formed by residues 1036 - 1043 (chain A) in PDB entry 1HXK


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 THR1036 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  TRP*     4.1    14.8    -      -       +      -
    214A  TYR*     2.6    35.0    +      -       -      -
    218A  LYS*     3.5    24.4    -      -       -      +
    978A  VAL*     3.6    25.1    -      -       +      -
    979A  LEU      3.2    13.5    -      -       -      +
    980A  HIS*     2.8    18.5    -      -       -      -
   1014A  LEU*     3.8    17.8    -      -       +      +
   1035A  GLU*     1.3    77.0    -      -       -      +
   1037A  ALA*     1.3    62.2    +      -       -      +
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Residues in contact with ALA1037 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    978A  VAL*     3.5     4.2    -      -       -      +
    979A  LEU*     2.8    34.7    +      -       -      +
   1011A  ARG*     4.1    13.0    -      -       +      +
   1012A  THR      5.5     0.2    -      -       -      -
   1014A  LEU*     3.8     6.3    -      -       -      -
   1031A  VAL*     3.3    26.6    -      -       +      +
   1035A  GLU*     5.1     4.0    -      -       +      +
   1036A  THR*     1.3    74.5    -      -       -      +
   1038A  ALA*     1.3    59.8    +      -       -      +
   1039A  TYR*     4.0    19.5    -      -       +      +
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Residues in contact with ALA1038 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    977A  TYR      3.1    10.8    -      -       -      +
    978A  VAL*     4.6     2.7    -      -       +      -
   1011A  ARG*     3.4     9.1    -      -       -      +
   1012A  THR*     2.9    33.9    +      -       -      +
   1013A  THR      3.4    25.4    -      -       -      +
   1014A  LEU*     3.8    17.5    -      -       +      +
   1016A  PHE*     3.8     9.9    -      -       +      -
   1037A  ALA*     1.3    74.9    -      -       -      +
   1039A  TYR*     1.3    65.3    -      -       -      +
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Residues in contact with TYR1039 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    975A  VAL      3.8     0.7    -      -       -      +
    976A  GLY*     3.3     2.1    -      -       -      -
    977A  TYR*     2.7    35.8    +      -       -      +
    979A  LEU*     4.6    19.1    -      -       +      -
    999A  VAL*     4.1    22.2    -      -       +      -
   1000A  CYS*     4.4     5.6    -      -       -      -
   1010A  GLU      3.2     6.1    -      -       -      +
   1011A  ARG*     2.9    41.0    +      -       +      -
   1012A  THR      4.5     0.4    -      -       -      +
   1016A  PHE*     4.0     0.3    -      -       -      -
   1023A  LEU*     3.6    33.0    -      -       +      -
   1028A  ALA*     3.7    18.2    -      -       +      -
   1029A  PRO*     2.6    34.4    +      -       +      +
   1030A  GLU      4.6     0.7    +      -       -      -
   1031A  VAL*     4.1     4.1    -      -       +      +
   1037A  ALA*     4.0    18.9    -      -       +      +
   1038A  ALA*     1.3    79.4    -      -       -      +
   1040A  VAL*     1.3    65.5    +      -       -      +
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Residues in contact with VAL1040 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    965A  LEU*     3.8    14.1    -      -       +      -
    974A  ARG*     3.7    46.9    -      -       +      +
    975A  VAL      3.2     9.0    -      -       -      +
    976A  GLY*     4.1     0.7    -      -       -      -
   1000A  CYS*     4.3     2.5    -      -       -      -
   1008A  ARG      4.0     0.5    -      -       -      +
   1009A  CYS*     3.6     1.9    -      -       -      -
   1010A  GLU*     2.9    40.5    +      -       -      +
   1012A  THR*     3.7    24.9    -      -       +      -
   1016A  PHE*     3.8    20.0    -      -       +      -
   1039A  TYR*     1.3    79.4    -      -       -      +
   1041A  SER*     1.3    64.5    +      -       -      +
   1042A  SER*     4.1     2.8    +      -       -      +
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Residues in contact with SER1041 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    974A  ARG*     3.3     4.7    -      -       -      -
    975A  VAL*     2.9    37.7    +      -       -      +
    977A  TYR*     3.8    14.0    +      -       -      -
    999A  VAL      4.7     0.3    +      -       -      -
   1000A  CYS*     3.7    35.7    +      -       -      -
   1006A  VAL*     4.4     0.4    -      -       -      -
   1008A  ARG      3.4     7.2    -      -       -      -
   1039A  TYR      4.2     0.2    -      -       -      -
   1040A  VAL*     1.3    74.8    -      -       -      +
   1042A  SER*     1.3    61.2    +      -       -      +
   1043A  HIS*     2.7    29.4    +      -       -      -
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Residues in contact with SER1042 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    972A  THR*     3.8    11.4    -      -       -      +
    973A  GLN      3.2     5.2    -      -       -      -
    974A  ARG*     4.0    15.6    +      -       -      +
   1006A  VAL*     3.4     6.1    -      -       -      +
   1007A  ALA*     2.7    31.1    +      -       -      -
   1008A  ARG*     2.9    51.8    +      -       -      +
   1010A  GLU*     4.3     6.9    +      -       -      -
   1040A  VAL*     4.8     1.4    +      -       -      +
   1041A  SER*     1.3    71.7    -      -       -      +
   1043A  HIS*     1.3    59.2    +      -       -      +
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Residues in contact with HIS1043 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    964A  ARG*     5.8     0.4    -      -       -      -
    971A  LYS      3.9     0.5    -      -       -      +
    972A  THR*     3.5     7.5    -      -       -      +
    973A  GLN*     2.8    48.4    +      -       +      +
    975A  VAL*     4.5    11.4    -      -       +      -
   1000A  CYS      4.0     2.9    -      -       -      -
   1003A  LEU*     3.4    41.3    -      -       +      +
   1004A  PRO      2.9    22.1    +      -       -      +
   1005A  ASN*     3.2     7.6    -      -       +      +
   1006A  VAL*     3.5    16.7    -      -       +      -
   1007A  ALA*     4.8     0.7    -      -       -      -
   1041A  SER*     2.7    42.0    +      -       -      -
   1042A  SER*     1.3    76.6    -      -       -      +
   1044A  SER*     1.3    65.2    +      -       -      +
----------------------------------------------------------
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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