Contacts of the helix formed by residues 136 - 147 (chain D) in PDB entry 2HJ9


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 ASN 136 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  HIS*     4.0    12.8    -      -       +      +
    134D  GLY      2.9    12.4    +      -       -      +
    135D  VAL*     1.3    74.6    -      -       -      +
    137D  ASP*     1.3    55.4    +      -       -      +
    138D  LEU*     3.0    12.8    +      -       -      +
    139D  ILE*     2.8    39.8    +      -       -      +
    140D  LEU*     2.8    33.2    +      -       -      +
    161D  SER*     6.3     1.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 137 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123D  ILE*     5.4     0.3    -      -       -      +
    126D  ASP*     4.8     3.5    -      -       -      +
    131D  HIS*     2.7    36.9    +      -       -      -
    136D  ASN*     1.3    75.2    -      -       -      +
    138D  LEU*     1.3    61.8    +      -       -      +
    140D  LEU*     3.7    13.3    -      -       -      +
    141D  ASP*     3.1    27.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 138 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136D  ASN*     3.0    12.6    +      -       -      +
    137D  ASP*     1.3    76.9    -      -       -      +
    139D  ILE*     1.3    62.2    +      -       +      +
    141D  ASP*     3.1    13.2    -      -       +      +
    142D  SER*     3.0    26.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 139 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134D  GLY      3.6    20.9    -      -       -      +
    135D  VAL*     4.0    14.8    -      -       +      -
    136D  ASN*     2.8    35.1    +      -       -      +
    138D  LEU*     1.3    74.6    -      -       +      +
    140D  LEU*     1.3    57.2    +      -       -      +
    142D  SER*     3.1    11.7    +      -       -      +
    143D  LEU*     3.0    32.7    +      -       +      +
    158D  VAL*     3.9    33.2    -      -       +      -
    159D  MET      3.7    22.2    -      -       -      +
    160D  THR*     4.2     8.5    -      -       +      -
    161D  SER      5.4     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 140 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114D  PHE*     4.0    15.0    -      -       +      -
    116D  PHE*     3.3    43.2    -      -       +      -
    123D  ILE*     3.7    22.8    -      -       +      +
    126D  ASP*     3.8    30.3    -      -       +      +
    130D  ALA*     4.2    10.3    -      -       +      -
    131D  HIS*     4.4     1.6    -      -       -      +
    135D  VAL*     4.0    16.9    -      -       +      +
    136D  ASN      2.8    18.1    +      -       -      +
    137D  ASP*     3.7    21.5    -      -       -      +
    139D  ILE*     1.3    72.1    -      -       -      +
    141D  ASP*     1.3    57.1    -      -       -      +
    143D  LEU*     3.4     6.2    -      -       +      +
    144D  ALA*     3.1    22.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 141 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122D  GLY*     5.8     1.0    -      -       -      -
    123D  ILE*     4.4    20.6    +      -       -      +
    137D  ASP      3.1    11.5    +      -       -      +
    138D  LEU*     3.1    20.2    -      -       +      +
    140D  LEU*     1.3    80.2    -      -       -      +
    142D  SER*     1.3    60.3    +      -       -      +
    144D  ALA*     3.3     6.9    +      -       -      +
    145D  ASN*     2.9    36.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 142 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138D  LEU*     3.0    12.2    +      -       -      -
    139D  ILE*     3.1    22.5    +      -       -      +
    141D  ASP*     1.3    74.6    -      -       -      +
    143D  LEU*     1.3    52.9    +      -       -      +
    145D  ASN*     3.2     9.3    +      -       -      +
    146D  ARG*     2.8    46.0    +      -       -      +
    158D  VAL*     5.4     4.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 143 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114D  PHE*     4.0    22.4    -      -       +      -
    116D  PHE*     4.7     7.9    -      -       +      -
    135D  VAL*     3.9    26.2    -      -       +      -
    139D  ILE*     3.0    20.3    +      -       +      +
    140D  LEU*     3.4    10.5    -      -       +      +
    142D  SER*     1.3    76.9    +      -       -      +
    144D  ALA*     1.3    62.1    +      -       -      +
    146D  ARG*     3.3     6.4    +      -       -      +
    147D  VAL*     3.1    30.7    +      -       -      +
    156D  ILE*     3.7    40.4    -      -       +      -
    158D  VAL*     5.5     2.0    -      -       +      -
    167D  MET*     3.9    16.4    -      -       +      -
    169D  VAL*     4.6    12.6    -      -       +      -
    187D  PHE*     4.8     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 144 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116D  PHE*     4.1    16.5    -      -       +      -
    118D  THR*     4.4     9.6    -      -       +      -
    123D  ILE*     4.6     4.9    -      -       +      -
    140D  LEU      3.1    13.7    +      -       -      +
    141D  ASP*     3.5    12.8    -      -       -      +
    143D  LEU*     1.3    74.6    -      -       -      +
    145D  ASN*     1.3    65.7    +      -       -      +
    147D  VAL      3.3    17.2    -      -       -      +
    148D  SER*     5.1     0.2    -      -       -      -
    171D  ARG*     4.6     4.0    +      -       -      -
    187D  PHE*     3.7    23.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 145 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  HIS*     3.5    28.9    +      -       +      -
    224A  ASN*     6.0     1.4    -      -       -      +
    141D  ASP*     2.9    31.4    +      -       -      -
    142D  SER*     3.2    10.1    +      -       -      +
    144D  ALA*     1.3    79.9    -      -       -      +
    146D  ARG*     1.3    65.2    +      -       -      +
    147D  VAL      3.5     0.2    +      -       -      -
    148D  SER*     3.7     7.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 146 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  HIS*     5.5     1.2    -      -       -      -
    142D  SER*     2.8    25.1    +      -       -      +
    143D  LEU*     3.6     9.9    -      -       -      +
    145D  ASN*     1.3    79.2    -      -       -      +
    147D  VAL*     1.3    56.7    +      -       -      +
    148D  SER*     3.1    10.9    +      -       -      -
    154D  TYR*     3.4    19.1    -      -       +      -
    156D  ILE*     4.1    42.0    -      -       +      +
    157D  ASN      4.0    19.0    +      -       -      +
    158D  VAL*     4.6    13.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 147 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143D  LEU      3.1    17.9    +      -       -      +
    144D  ALA      3.3     9.3    -      -       -      +
    145D  ASN      3.3     0.4    -      -       -      -
    146D  ARG*     1.3    73.0    -      -       -      +
    148D  SER*     1.3    58.4    +      -       -      +
    149D  PHE      3.6     5.6    -      -       -      +
    154D  TYR*     3.9    27.6    -      -       +      -
    156D  ILE*     3.8    24.0    -      -       +      -
    169D  VAL*     3.9    20.9    -      -       +      -
    170D  ARG      4.3     2.5    -      -       -      -
    171D  ARG*     3.2    42.4    +      -       +      +
    187D  PHE*     3.8    18.2    -      -       +      -
----------------------------------------------------------
 Back to top of page


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