Contacts of the helix formed by residues 122 - 133 (chain Q) in PDB entry 3H1J


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 GLY 122 (chain Q).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7Q  PRO*     4.7     7.2    -      -       -      -
    120Q  ARG      3.2     0.4    +      -       -      -
    121Q  HIS*     1.3    73.2    -      -       -      +
    123Q  GLY*     1.3    66.1    +      -       -      +
    124Q  GLU*     3.3     1.0    +      -       -      +
    125Q  ASP*     3.0    24.3    +      -       -      +
    126Q  TYR*     3.2    11.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 123 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117Q  VAL*     3.1    31.9    -      -       -      -
    120Q  ARG*     3.0    10.5    +      -       -      -
    121Q  HIS      3.3     1.2    +      -       -      -
    122Q  GLY*     1.3    75.8    -      -       -      +
    124Q  GLU*     1.3    61.6    +      -       -      -
    126Q  TYR*     2.9     6.9    +      -       -      +
    127Q  VAL*     2.7    34.5    +      -       -      +
    191Q  ARG*     4.7     2.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 124 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12Q  TRP*     3.3    44.1    -      -       +      +
     14Q  HIS*     2.6    31.1    +      -       -      +
    117Q  VAL*     4.0     7.4    -      -       +      +
    122Q  GLY      3.3     0.6    +      -       -      +
    123Q  GLY*     1.3    72.5    -      -       -      -
    125Q  ASP*     1.3    58.2    +      -       -      +
    127Q  VAL*     4.2     7.9    -      -       -      -
    128Q  PHE*     2.7    35.0    +      -       -      +
    187Q  CYS*     3.9    17.3    -      -       +      +
    191Q  ARG*     2.8    41.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 125 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7Q  PRO*     4.0     6.3    -      -       +      -
      8Q  PRO      3.3    21.0    -      -       -      +
      9Q  ALA*     3.3    20.1    -      -       -      +
     10Q  PHE*     3.2    18.3    +      -       -      +
     12Q  TRP*     2.5    35.9    +      -       -      -
    122Q  GLY*     3.0    13.4    +      -       -      +
    124Q  GLU*     1.3    79.1    -      -       -      +
    126Q  TYR*     1.3    56.8    +      -       -      +
    128Q  PHE*     4.0     0.9    -      -       -      +
    129Q  SER*     2.8    34.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 126 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7Q  PRO*     3.7    22.2    -      -       +      +
    120Q  ARG*     4.1    27.5    -      -       +      -
    121Q  HIS      3.5    24.0    -      -       -      +
    122Q  GLY*     3.2     6.5    +      -       -      -
    123Q  GLY      2.9     7.4    +      -       -      +
    125Q  ASP*     1.3    78.0    -      -       -      +
    127Q  VAL*     1.3    77.2    +      -       +      +
    129Q  SER*     3.4     1.4    +      -       -      -
    130Q  LEU*     3.0    41.7    +      -       +      +
    152Q  TYR*     3.5    28.5    -      -       +      -
    153Q  PHE*     3.8    15.1    -      -       -      -
    154Q  PRO*     3.8     9.9    -      -       +      +
    501Q  HEC      2.7    31.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 127 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116Q  ILE*     4.7    11.7    -      -       +      +
    117Q  VAL*     4.6    14.6    -      -       +      -
    120Q  ARG*     5.6     1.1    -      -       +      -
    123Q  GLY*     2.7    25.7    +      -       -      +
    124Q  GLU*     4.2     1.1    -      -       -      -
    126Q  TYR*     1.3    84.2    -      -       +      +
    128Q  PHE*     1.3    61.5    +      -       -      +
    130Q  LEU*     3.4     5.7    +      -       -      +
    131Q  LEU*     3.0    36.6    +      -       +      +
    187Q  CYS*     3.4    21.1    -      -       -      -
    190Q  LEU*     4.1    18.2    -      -       +      -
    501Q  HEC      4.2    23.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 128 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10Q  PHE*     3.3    41.3    -      +       -      -
     12Q  TRP*     3.9    13.0    -      +       +      -
    124Q  GLU      2.7    23.5    +      -       -      +
    125Q  ASP      4.0     2.5    -      -       -      +
    127Q  VAL*     1.3    73.5    -      -       -      +
    129Q  SER*     1.3    63.8    +      -       -      +
    130Q  LEU      3.1     1.0    +      -       -      -
    131Q  LEU*     3.2     4.8    +      -       -      +
    132Q  THR*     3.1    42.6    +      -       +      +
    180Q  SER*     3.5    13.0    -      -       -      -
    183Q  ALA*     3.4    24.7    -      -       +      -
    184Q  LYS*     3.3    32.5    -      -       +      -
    187Q  CYS*     3.3     9.5    -      -       -      -
     17U  LEU*     5.8     0.9    -      -       +      -
     73U  LEU*     4.1    19.7    -      -       +      -
     74U  PHE*     4.1     8.3    -      +       -      -
     77U  LEU*     4.8     0.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 129 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7Q  PRO*     3.2    22.8    -      -       -      +
      8Q  PRO*     3.5    12.3    -      -       -      +
     10Q  PHE*     3.6     9.7    -      -       -      -
    125Q  ASP      2.8    21.3    +      -       -      -
    126Q  TYR      3.9     2.0    -      -       -      -
    128Q  PHE*     1.3    80.6    -      -       -      +
    130Q  LEU*     1.3    52.7    +      -       -      +
    132Q  THR*     3.6     5.3    +      -       -      -
    133Q  GLY*     2.6    35.0    +      -       -      -
    152Q  TYR*     3.3    26.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 130 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126Q  TYR*     3.0    41.3    +      -       +      +
    127Q  VAL*     3.6     4.3    -      -       -      +
    128Q  PHE      3.1     0.2    -      -       -      -
    129Q  SER*     1.3    74.7    -      -       -      +
    131Q  LEU*     1.3    68.2    +      -       +      +
    132Q  THR      3.2     0.9    +      -       -      -
    133Q  GLY      3.3     4.7    +      -       -      -
    134Q  TYR*     3.7     3.0    -      -       -      +
    150Q  ASN*     2.8    57.9    +      -       -      +
    152Q  TYR*     4.2     5.1    -      -       +      +
    153Q  PHE*     3.6    28.7    -      -       +      +
    158Q  ILE*     4.3    14.4    -      -       +      -
    160Q  MET*     4.5     7.9    -      -       +      -
    501Q  HEC      4.0    33.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 131 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127Q  VAL*     3.0    27.1    +      -       +      +
    128Q  PHE      3.2     4.2    +      -       -      +
    130Q  LEU*     1.3    82.8    -      -       +      +
    132Q  THR*     1.3    58.0    +      -       -      +
    134Q  TYR*     3.5    19.3    -      -       -      -
    160Q  MET*     4.5     8.1    -      -       +      -
    162Q  PRO*     5.4     0.2    -      -       -      +
    163Q  PRO*     3.7    30.1    -      -       +      +
    164Q  ILE*     4.4    15.1    -      -       +      +
    179Q  MET*     4.4    12.4    -      -       -      +
    183Q  ALA*     4.2    18.4    -      -       +      -
    186Q  VAL*     3.8    29.4    -      -       +      -
    187Q  CYS*     4.7     1.6    -      -       -      -
    501Q  HEC      4.1    31.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 132 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128Q  PHE*     3.1    35.0    +      -       +      +
    129Q  SER*     3.6     6.2    +      -       -      -
    131Q  LEU*     1.3    76.9    -      -       -      +
    133Q  GLY*     1.3    60.3    +      -       -      +
    134Q  TYR*     2.9    16.5    +      -       -      +
    179Q  MET*     4.2    18.5    -      -       -      +
    180Q  SER*     4.3    11.2    -      -       -      -
    183Q  ALA*     3.8    22.7    -      -       +      -
     17U  LEU*     4.0     9.1    -      -       +      +
     21U  ARG*     3.2    30.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 133 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129Q  SER      2.6    26.2    +      -       -      -
    130Q  LEU      3.3     1.7    +      -       -      -
    132Q  THR*     1.3    71.5    +      -       -      +
    134Q  TYR*     1.3    61.9    +      -       -      +
    135Q  CYS*     4.3     2.1    -      -       -      +
    150Q  ASN*     4.1     6.3    -      -       -      -
    151Q  PRO*     3.0    29.8    -      -       -      +
    152Q  TYR*     4.0    13.0    -      -       -      -
     21U  ARG*     4.6     5.4    -      -       -      -
     62U  LEU*     6.1     0.2    -      -       -      +
     65U  ARG*     5.9     2.0    -      -       -      -
     66U  ASP*     6.5     0.4    -      -       -      -
----------------------------------------------------------
 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