Contacts of the helix formed by residues 147 - 162 (chain m) in PDB entry 6QXT


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 147 (chain m).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144m  ASP*     3.6    17.0    +      -       -      +
    145m  PRO      3.4     4.9    -      -       -      +
    146m  SER*     1.3    79.0    -      -       -      +
    148m  ARG*     1.3    60.8    +      -       -      +
    149m  GLU*     3.1     4.2    +      -       -      +
    150m  GLY*     3.3     6.9    +      -       -      +
    151m  HIS*     3.0    26.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 148 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136m  LEU*     3.9    34.8    -      -       +      +
    139m  GLY      5.2     2.9    -      -       -      +
    140m  LEU*     5.0    13.0    -      -       +      +
    144m  ASP*     5.7     1.8    -      -       -      +
    146m  SER*     3.2    12.6    -      -       -      +
    147m  ASN*     1.3    76.6    -      -       -      +
    149m  GLU*     1.3    57.6    +      -       -      +
    151m  HIS*     3.9     8.2    -      -       -      +
    152m  SER*     2.9    29.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 149 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110m  ILE*     5.2    14.8    -      -       +      -
    114m  ILE*     6.2     2.2    -      -       -      -
    144m  ASP*     6.3     3.1    -      -       +      +
    147m  ASN*     3.1     1.9    -      -       -      +
    148m  ARG*     1.3    76.0    -      -       -      +
    150m  GLY*     1.3    59.9    +      -       -      +
    152m  SER*     3.2     6.4    +      -       -      -
    153m  ALA*     2.9    27.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 150 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147m  ASN*     3.3    10.9    +      -       -      +
    149m  GLU*     1.3    78.7    -      -       -      +
    151m  HIS*     1.3    57.3    +      -       -      +
    153m  ALA*     3.3     8.2    +      -       -      +
    154m  ARG*     2.9    29.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 151 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136m  LEU*     6.1     1.8    -      -       +      -
    146m  SER      5.4     1.1    -      -       -      +
    147m  ASN      3.0    17.2    +      -       -      +
    148m  ARG*     4.0     8.5    -      -       -      +
    150m  GLY*     1.3    72.7    -      -       -      +
    152m  SER*     1.3    62.6    +      -       -      +
    154m  ARG*     3.9     5.6    -      -       -      +
    155m  ILE*     2.9    31.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 152 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114m  ILE*     4.9    18.4    -      -       -      -
    133m  ILE*     5.2    14.2    -      -       -      +
    136m  LEU*     4.9    12.3    -      -       -      +
    148m  ARG      2.9    20.7    +      -       -      -
    149m  GLU*     3.5     7.4    -      -       -      -
    151m  HIS*     1.3    75.9    -      -       -      +
    153m  ALA*     1.3    57.6    +      -       -      +
    155m  ILE*     3.9     3.8    -      -       -      +
    156m  TYR*     2.9    30.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 153 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149m  GLU      2.9    17.1    +      -       -      +
    150m  GLY*     3.7     7.4    -      -       -      +
    152m  SER*     1.3    75.3    -      -       -      +
    154m  ARG*     1.3    59.8    +      -       -      +
    156m  TYR*     3.5     5.2    -      -       -      +
    157m  PHE*     2.9    32.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 154 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150m  GLY      2.9    17.0    +      -       -      +
    151m  HIS*     3.9     6.5    -      -       -      +
    153m  ALA*     1.3    75.8    -      -       -      +
    155m  ILE*     1.3    59.1    +      -       -      +
    157m  PHE*     4.5     1.9    -      -       -      +
    158m  ASN*     2.9    33.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 155 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129m  LYS*     5.8     0.3    -      -       -      +
    132m  SER*     6.4     2.5    -      -       -      -
    133m  ILE*     6.5     0.7    -      -       +      -
    151m  HIS      2.9    18.8    +      -       -      +
    152m  SER*     4.3     4.3    -      -       -      +
    154m  ARG*     1.3    74.5    -      -       -      +
    156m  TYR*     1.3    61.0    +      -       -      +
    158m  ASN*     4.2     4.4    -      -       -      +
    159m  THR*     2.9    32.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 156 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117m  GLN*     5.2    13.7    -      -       +      -
    152m  SER      2.9    21.3    +      -       -      +
    153m  ALA*     3.2     8.2    +      -       -      +
    155m  ILE*     1.3    78.4    -      -       -      +
    157m  PHE*     1.3    57.4    +      -       -      +
    159m  THR*     3.8     2.6    -      -       -      -
    160m  LEU*     2.9    31.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 157 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153m  ALA      2.9    15.2    +      -       -      +
    154m  ARG*     4.5     2.0    -      -       -      +
    156m  TYR*     1.3    77.1    -      -       -      +
    158m  ASN*     1.3    59.0    +      -       -      +
    160m  LEU*     4.5     4.9    -      -       -      +
    161m  PHE*     2.9    36.3    +      -       +      +
    162m  GLY      4.0     0.9    +      -       -      +
    165m  PHE*     4.6     4.9    -      -       +      +
    166m  THR*     6.0     3.6    -      -       -      -
    167m  ARG*     5.8    10.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 158 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154m  ARG      2.9    22.7    +      -       -      +
    155m  ILE*     4.2     3.8    -      -       -      +
    157m  PHE*     1.3    77.3    -      -       -      +
    159m  THR*     1.3    58.1    +      -       -      +
    162m  GLY*     2.9    38.4    +      -       -      +
    163m  ASN*     3.4    12.4    +      -       +      +
    165m  PHE      4.9     8.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 159 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129m  LYS*     4.6    20.2    -      -       -      -
    155m  ILE      2.9    21.5    +      -       -      -
    156m  TYR*     3.9     2.9    -      -       -      -
    158m  ASN*     1.3    77.8    -      -       -      +
    160m  LEU*     1.3    65.1    +      -       -      +
    162m  GLY*     4.2     2.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 160 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156m  TYR      2.9    18.3    +      -       -      +
    157m  PHE*     4.1     4.3    -      -       -      +
    159m  THR*     1.3    79.9    -      -       -      +
    161m  PHE*     1.3    61.5    +      -       +      +
    162m  GLY      3.7     0.2    +      -       -      -
    231m  TYR*     5.5    11.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 161 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    157m  PHE*     2.9    19.4    +      -       +      +
    160m  LEU*     1.3    75.4    -      -       +      +
    162m  GLY*     1.3    58.7    +      -       -      +
    165m  PHE*     3.6    21.7    +      -       +      +
    173m  ILE*     6.2     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 162 (chain m). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158m  ASN*     2.9    23.0    +      -       -      +
    159m  THR      4.2     1.9    +      -       -      -
    160m  LEU      3.4     3.0    +      -       -      -
    161m  PHE*     1.3    78.6    -      -       -      +
    163m  ASN*     1.3    65.9    +      -       -      -
    164m  ASP      3.2     2.9    -      -       -      -
    165m  PHE*     3.1    17.5    +      -       -      +
----------------------------------------------------------
 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