Contacts of the helix formed by residues 836 - 849 (chain B) in PDB entry 5NC5


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 SER 836 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    831B  ALA*     3.5     4.5    -      -       -      +
    834B  GLY      4.3     0.6    +      -       -      -
    835B  LYS*     1.3    76.9    -      -       -      +
    837B  THR*     1.3    64.7    +      -       -      +
    838B  GLY*     3.3     6.4    +      -       -      -
    839B  GLU*     3.1    42.4    +      -       -      +
    840B  ALA      3.2     9.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 837 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    677B  ALA      2.9    29.2    -      -       -      +
    678B  THR*     3.0    27.1    -      -       -      +
    679B  GLY      4.1     9.0    -      -       -      +
    680B  PHE*     5.5     1.7    -      -       -      -
    831B  ALA*     4.0     8.3    -      -       +      -
    835B  LYS      4.0     0.6    +      -       -      +
    836B  SER*     1.3    73.3    -      -       -      +
    838B  GLY*     1.3    55.7    +      -       -      +
    840B  ALA*     3.1     4.0    +      -       -      +
    841B  MET*     2.7    44.9    +      -       -      +
    866B  GLU*     3.5    25.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 838 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    836B  SER*     3.2     8.1    +      -       -      -
    837B  THR*     1.3    83.8    +      -       -      +
    839B  GLU*     1.3    56.0    +      -       -      +
    841B  MET*     3.6     8.2    +      -       -      +
    842B  GLU*     3.1    30.5    +      -       -      +
    866B  GLU*     4.5     8.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 839 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    712B  MET*     4.0    17.6    -      -       +      +
    834B  GLY      4.6     1.4    -      -       -      +
    835B  LYS*     3.6    30.5    +      -       -      +
    836B  SER*     3.1    38.1    +      -       -      +
    838B  GLY*     1.3    74.4    -      -       -      +
    840B  ALA*     1.3    65.8    +      -       -      +
    842B  GLU*     3.1    16.3    +      -       -      +
    843B  LEU*     3.0    21.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 840 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    680B  PHE*     4.2    10.3    -      -       +      -
    712B  MET*     4.0     7.9    -      -       -      +
    713B  LEU*     3.4    27.1    -      -       +      +
    831B  ALA*     3.8    31.4    -      -       +      +
    836B  SER      3.2     2.4    +      -       -      -
    837B  THR*     3.1     7.9    +      -       -      +
    839B  GLU*     1.3    77.0    -      -       -      +
    841B  MET*     1.3    63.5    +      -       -      +
    843B  LEU*     3.1     4.3    +      -       -      +
    844B  MET*     2.9    26.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 841 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    679B  GLY      4.8     2.5    -      -       -      +
    680B  PHE*     4.2    11.9    -      -       +      -
    837B  THR*     2.7    32.6    +      -       -      +
    838B  GLY*     3.7     6.5    -      -       -      +
    840B  ALA*     1.3    72.0    -      -       -      +
    842B  GLU*     1.3    64.8    +      -       -      +
    844B  MET*     3.2     3.7    +      -       -      +
    845B  GLU*     2.9    30.1    +      -       -      +
    859B  TRP*     3.7    40.5    -      -       +      +
    863B  SER*     3.6    28.9    -      -       -      +
    866B  GLU*     3.7    38.6    -      -       +      +
    867B  ARG*     5.3     8.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 842 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    838B  GLY      3.1    16.8    +      -       -      +
    839B  GLU*     3.1    16.0    +      -       -      +
    841B  MET*     1.3    79.2    -      -       -      +
    843B  LEU*     1.3    62.8    +      -       -      +
    845B  GLU*     3.4    16.3    +      -       -      +
    846B  GLN*     3.1    41.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 843 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    709B  HIS*     3.7    27.6    -      -       +      +
    712B  MET*     3.3    35.4    -      -       +      -
    713B  LEU*     3.4    24.2    -      -       +      -
    839B  GLU      3.0    12.9    +      -       -      +
    840B  ALA      3.1     8.0    +      -       -      +
    842B  GLU*     1.3    74.2    -      -       -      +
    844B  MET*     1.3    56.5    +      -       -      +
    846B  GLN*     2.8    26.2    +      -       +      +
    847B  LEU*     2.7    51.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 844 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    680B  PHE*     3.6    36.3    -      -       +      -
    682B  PHE*     4.2    22.4    -      -       +      -
    702B  LEU*     3.7    32.5    -      -       +      -
    706B  ALA*     4.4     4.9    -      -       -      -
    713B  LEU*     4.2    16.4    -      -       +      -
    716B  VAL*     3.9    20.4    -      -       +      -
    827B  ILE*     4.6     4.5    -      -       +      -
    840B  ALA      2.9    15.2    +      -       -      +
    841B  MET      3.5     8.5    -      -       -      +
    843B  LEU*     1.3    74.6    -      -       -      +
    845B  GLU*     1.3    56.1    +      -       -      +
    847B  LEU*     3.3     7.5    +      -       -      +
    848B  ALA*     2.9    30.4    +      -       -      +
    859B  TRP*     3.9    13.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 845 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    682B  PHE*     5.1     0.2    -      -       -      -
    841B  MET*     2.9    21.6    +      -       -      +
    842B  GLU*     3.6    18.7    -      -       -      +
    844B  MET*     1.3    75.0    -      -       -      +
    846B  GLN*     1.3    64.4    +      -       +      +
    848B  ALA*     3.1     5.6    +      -       -      +
    849B  SER*     3.0    22.9    +      -       -      -
    857B  TYR*     3.3    34.4    +      -       +      +
    859B  TRP*     2.9    35.0    +      -       +      +
    867B  ARG*     5.5     3.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 846 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    842B  GLU*     3.1    36.4    +      -       -      +
    843B  LEU*     2.8    30.9    +      -       +      +
    845B  GLU*     1.3    78.5    -      -       +      +
    847B  LEU*     1.3    62.3    -      -       +      +
    849B  SER*     2.4    27.8    +      -       -      -
    850B  LYS*     3.8     7.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 847 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    702B  LEU*     3.5    18.3    -      -       +      +
    705B  GLU*     3.9    22.8    -      -       +      +
    706B  ALA*     3.7    34.3    -      -       +      +
    709B  HIS*     4.3    15.3    -      -       +      +
    713B  LEU*     3.9    18.4    -      -       +      -
    843B  LEU*     2.7    35.1    +      -       +      +
    844B  MET*     3.7     6.7    -      -       -      +
    846B  GLN*     1.3    73.4    -      -       +      +
    848B  ALA*     1.3    62.3    +      -       -      +
    850B  LYS*     3.3    21.8    +      -       -      +
    851B  LEU*     3.9     7.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 848 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    682B  PHE*     3.8    24.9    -      -       +      -
    702B  LEU*     3.8     3.3    -      -       +      +
    844B  MET      2.9    18.0    +      -       -      +
    845B  GLU*     3.4     6.3    -      -       -      +
    847B  LEU*     1.3    72.9    -      -       -      +
    849B  SER*     1.3    59.2    +      -       -      +
    850B  LYS      3.1     5.4    -      -       -      -
    851B  LEU*     3.1    39.0    +      -       +      +
    855B  VAL      4.9     5.4    -      -       -      +
    857B  TYR*     3.9    18.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 849 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    845B  GLU      3.0    10.9    +      -       -      -
    846B  GLN*     2.4    26.2    +      -       -      -
    848B  ALA*     1.3    74.6    -      -       -      +
    850B  LYS*     1.3    67.5    +      -       -      +
    851B  LEU      3.4     4.8    +      -       -      +
    857B  TYR*     5.3     4.4    -      -       -      -
----------------------------------------------------------
 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