Contacts of the helix formed by residues 114 - 128 (chain K) in PDB entry 6RQT


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 VAL 114 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333C  ILE*     4.9    15.9    -      -       +      -
     47K  ILE*     5.8     0.9    -      -       +      -
     49K  LEU*     3.9    21.1    -      -       +      -
     63K  PHE*     3.6    28.5    -      -       +      -
    112K  THR*     4.1     6.3    -      -       -      +
    113K  ALA*     1.3    76.9    -      -       +      +
    115K  ASP*     1.3    73.9    +      -       -      +
    116K  ALA      3.3     0.2    -      -       -      -
    117K  LEU*     3.4     8.0    +      -       +      +
    118K  GLN*     3.4    17.3    +      -       -      +
    549O  ASN*     5.2    17.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 115 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83K  ASN*     5.2     0.2    -      -       -      +
    111K  THR*     5.0     6.9    -      -       +      +
    112K  THR*     2.8    37.0    +      -       -      +
    113K  ALA      3.2     1.2    -      -       -      -
    114K  VAL*     1.3    87.7    -      -       -      +
    116K  ALA*     1.3    58.7    +      -       -      +
    117K  LEU      3.3     0.7    -      -       -      -
    118K  GLN*     3.3    25.6    +      -       +      +
    119K  LYS*     3.8    10.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 116 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80K  ILE*     3.3    23.0    -      -       +      +
     83K  ASN*     4.4    18.1    -      -       -      +
     86K  VAL*     5.0    12.3    -      -       +      -
    105K  ILE*     3.7    31.9    -      -       +      -
    107K  THR*     5.2     1.3    -      -       -      -
    111K  THR*     4.3    13.6    -      -       +      +
    112K  THR      4.0     7.2    +      -       -      +
    113K  ALA      3.3     1.8    +      -       -      +
    114K  VAL      3.3     0.4    -      -       -      -
    115K  ASP*     1.3    75.0    -      -       -      +
    117K  LEU*     1.3    60.5    +      -       -      +
    118K  GLN      3.3     0.7    -      -       -      -
    119K  LYS      4.4     1.6    -      -       -      -
    120K  GLY      3.7     5.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 117 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328C  LEU*     5.3     8.3    -      -       +      +
    329C  LYS*     5.4     5.8    -      -       +      -
     47K  ILE*     5.7     8.7    -      -       +      -
     63K  PHE*     3.8    33.4    -      -       +      -
     76K  LEU*     3.7    30.7    -      -       +      -
     80K  ILE*     4.9     3.8    -      -       +      -
    103K  ILE*     4.8     7.0    -      -       +      -
    105K  ILE*     5.4     2.7    -      -       +      +
    113K  ALA      3.6     2.8    +      -       -      -
    114K  VAL*     3.4    11.6    +      -       +      +
    115K  ASP      3.3     0.4    -      -       -      -
    116K  ALA*     1.3    78.4    -      -       -      +
    118K  GLN*     1.3    65.3    +      -       -      +
    120K  GLY      3.9     1.1    -      -       -      +
    121K  LEU*     3.2    36.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 118 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329C  LYS*     5.0    20.6    -      -       -      +
    114K  VAL      3.4     8.5    +      -       -      +
    115K  ASP*     3.3    21.4    -      -       +      +
    116K  ALA      3.3     0.2    -      -       -      -
    117K  LEU*     1.3    78.4    -      -       -      +
    119K  LYS*     1.3    61.4    +      -       +      +
    121K  LEU*     3.1     5.6    +      -       -      +
    122K  LYS*     2.7    68.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 119 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79K  VAL*     5.2     0.5    -      -       -      +
     83K  ASN*     4.0    25.9    -      -       -      +
    115K  ASP      3.8    12.7    +      -       -      +
    116K  ALA      4.4     0.6    +      -       -      +
    118K  GLN*     1.3    85.3    -      -       +      +
    120K  GLY*     1.3    62.6    +      -       -      +
    122K  LYS*     3.9    14.8    -      -       +      -
    123K  ASP*     2.9    38.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 120 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76K  LEU*     3.6    10.1    -      -       -      +
     79K  VAL*     3.2    26.0    -      -       -      +
     80K  ILE*     3.7    27.1    -      -       -      +
     83K  ASN*     5.4     1.1    +      -       -      +
    116K  ALA      3.7     7.1    +      -       -      -
    117K  LEU      3.6     3.3    +      -       -      -
    118K  GLN      3.1     1.0    -      -       -      -
    119K  LYS*     1.3    79.1    -      -       -      +
    121K  LEU*     1.3    57.1    +      -       -      +
    123K  ASP      3.3    11.8    +      -       -      -
    124K  LEU*     3.4     5.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 121 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325C  ALA*     4.4    21.3    -      -       +      +
    328C  LEU*     3.9    31.2    -      -       +      -
    329C  LYS*     4.9    12.0    -      -       +      +
     72K  LEU*     4.2    16.8    -      -       +      -
     76K  LEU*     3.7    28.5    -      -       +      -
    117K  LEU*     3.2    41.1    +      -       +      +
    118K  GLN      3.1     3.1    +      -       -      +
    120K  GLY*     1.3    73.5    -      -       -      +
    122K  LYS*     1.3    68.6    +      -       -      +
    123K  ASP      3.1     1.2    +      -       -      -
    124K  LEU*     4.0    16.6    -      -       +      +
    125K  MET*     3.5    19.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 122 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329C  LYS*     3.8    30.6    -      -       -      +
    118K  GLN*     2.7    52.8    +      -       +      +
    119K  LYS*     4.1    17.7    -      -       +      -
    120K  GLY      3.4     0.2    -      -       -      -
    121K  LEU*     1.3    73.4    -      -       -      +
    123K  ASP*     1.3    63.8    +      -       -      +
    125K  MET*     3.5    46.8    -      -       -      +
    126K  ASP*     3.4    17.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 123 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31C  TRP*     4.8    11.1    -      -       -      +
     33C  VAL*     4.9    12.6    -      -       +      +
     79K  VAL*     3.7    29.2    -      -       +      +
     82K  LYS*     5.8     0.7    -      -       -      +
    119K  LYS*     2.9    27.6    -      -       -      +
    120K  GLY      3.3     2.3    +      -       -      +
    121K  LEU      3.1     0.4    -      -       -      -
    122K  LYS*     1.3    85.8    -      -       -      +
    124K  LEU*     1.3    54.7    +      -       -      +
    125K  MET      3.1     1.1    -      -       -      -
    126K  ASP*     3.0    13.4    +      -       +      +
    127K  LEU*     2.6    36.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 124 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63C  ILE*     5.4     0.2    -      -       +      -
     66C  ALA*     6.4     0.2    -      -       +      -
    321C  LEU*     4.5    21.8    -      -       +      +
    325C  ALA*     4.1    21.2    -      -       +      +
     72K  LEU*     5.4     4.5    -      -       +      -
     75K  ALA*     3.8    29.2    -      -       +      +
     76K  LEU*     4.1    12.8    -      -       +      -
     79K  VAL*     3.7    28.0    -      -       +      -
    120K  GLY      3.4    10.5    +      -       -      +
    121K  LEU*     4.2    12.8    -      -       +      +
    122K  LYS      3.6     0.2    -      -       -      -
    123K  ASP*     1.3    75.3    -      -       -      +
    125K  MET*     1.3    61.1    +      -       -      +
    126K  ASP      3.3     0.5    +      -       -      -
    127K  LEU*     3.4    29.1    +      -       +      -
    128K  CYS*     3.3    22.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 125 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322C  LYS*     3.7    33.9    -      -       +      +
    325C  ALA*     4.6     5.9    -      -       +      +
    326C  GLU*     3.7    37.2    -      -       +      +
    329C  LYS*     4.7     4.0    -      -       +      -
    121K  LEU      3.5    10.5    +      -       -      +
    122K  LYS*     3.5    49.1    -      -       -      +
    124K  LEU*     1.3    78.6    -      -       -      +
    126K  ASP*     1.3    64.7    +      -       -      +
    128K  CYS*     4.4     0.7    -      -       -      -
    129K  ASP*     3.4    15.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 126 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33C  VAL*     4.8    20.6    -      -       +      +
    122K  LYS      3.4    15.6    -      -       -      +
    123K  ASP*     3.0    15.6    +      -       -      +
    125K  MET*     1.3    90.1    -      -       -      +
    127K  LEU*     1.3    62.4    +      -       -      +
    128K  CYS      3.3     2.2    -      -       -      -
    129K  ASP*     3.5    14.4    -      -       +      +
    130K  VAL*     3.3    23.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 127 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36C  PHE*     4.3    16.4    -      -       +      -
     59C  ILE*     4.3    24.0    -      -       +      -
     63C  ILE*     3.7    36.3    -      -       +      -
     67C  PHE*     4.7     3.0    -      -       +      -
     75K  ALA      4.7     1.6    -      -       -      +
     78K  TYR*     4.6    14.8    -      -       +      -
     79K  VAL*     5.5     6.7    -      -       +      -
     82K  LYS*     5.2     5.8    -      -       -      +
    123K  ASP      2.6    19.5    +      -       -      +
    124K  LEU*     3.4    30.6    +      -       +      -
    126K  ASP*     1.3    72.7    -      -       -      +
    128K  CYS*     1.3    58.1    +      -       -      +
    130K  VAL*     3.3    17.7    -      -       -      +
    131K  VAL*     3.6     8.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 128 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67C  PHE*     4.1    17.5    -      -       +      -
    318C  VAL*     3.7    25.9    -      -       +      +
    321C  LEU*     4.5    11.4    -      -       +      -
    322C  LYS*     3.6    47.1    -      -       -      -
    124K  LEU*     3.3    18.7    +      -       +      +
    125K  MET      4.1     0.7    -      -       -      -
    127K  LEU*     1.3    75.8    -      -       -      +
    129K  ASP*     1.3    65.7    +      -       -      +
    130K  VAL      3.3     2.2    -      -       -      -
    131K  VAL*     3.4    12.4    +      -       -      -
    132K  GLU*     3.4     9.9    +      -       -      +
----------------------------------------------------------
 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