Contacts of the helix formed by residues 844 - 858 (chain C) in PDB entry 4AY6


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 ASP 844 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464C  GLN*     4.8     1.3    -      -       -      +
    469C  TRP*     3.6     8.0    -      -       -      +
    472C  TYR*     3.6    22.8    +      -       +      +
    842C  LYS      3.9     0.2    +      -       -      -
    843C  ILE*     1.3    76.3    -      -       -      +
    845C  PRO*     1.3    69.1    -      -       +      +
    846C  SER*     3.9    11.6    +      -       -      -
    847C  THR*     2.7    56.4    +      -       -      -
    848C  LEU      3.0     9.4    +      -       -      -
    916C  LEU*     4.1    28.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 845 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469C  TRP*     3.5    48.9    -      -       +      -
    472C  TYR*     3.9    31.6    -      -       +      -
    844C  ASP*     1.3    90.0    -      -       +      +
    846C  SER*     1.3    61.1    +      -       -      +
    848C  LEU*     3.6     0.5    +      -       -      +
    849C  GLN*     3.1    21.5    +      -       -      +
    883C  MET*     3.8    13.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 846 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    844C  ASP*     3.0    13.3    +      -       -      -
    845C  PRO*     1.3    75.6    -      -       -      +
    847C  THR*     1.3    69.8    +      -       -      +
    849C  GLN*     2.9    19.0    +      -       -      +
    850C  MET*     3.0    19.1    +      -       -      +
    963C  ARG*     3.5    33.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 847 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    842C  LYS      4.7     1.4    +      -       -      -
    843C  ILE*     4.2     2.9    -      -       +      -
    844C  ASP*     2.7    37.9    +      -       -      -
    846C  SER*     1.3    73.7    -      -       -      +
    848C  LEU*     1.3    63.9    +      -       -      +
    850C  MET*     3.4    17.3    +      -       +      +
    851C  TRP*     3.4    52.9    +      -       +      +
    914C  THR*     4.1     7.9    -      -       +      -
    915C  PRO*     3.3    32.9    -      -       +      +
    916C  LEU      4.4     3.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 848 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469C  TRP*     3.6    30.7    -      -       +      -
    843C  ILE*     4.2     4.4    -      -       +      +
    844C  ASP      3.0    10.2    +      -       -      +
    845C  PRO      3.9     7.0    -      -       -      +
    847C  THR*     1.3    75.9    -      -       -      +
    849C  GLN*     1.3    65.7    +      -       -      +
    851C  TRP*     3.0    29.4    +      -       +      -
    852C  ALA*     2.9    23.3    +      -       +      +
    855C  LEU*     6.5     0.2    -      -       +      -
    863C  LEU*     4.9     6.3    -      -       +      -
    865C  LEU*     5.9     0.7    -      -       +      -
    876C  ILE*     4.1    28.3    -      -       +      -
    879C  TYR*     4.1    15.5    -      -       +      -
    880C  ALA*     4.5     9.4    -      -       +      +
    883C  MET*     4.2    11.0    -      -       +      -
    885C  LEU*     6.4     1.6    -      -       +      -
    890C  ILE*     4.9     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 849 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    845C  PRO      3.1    14.1    +      -       -      +
    846C  SER*     2.9    14.4    +      -       -      +
    848C  LEU*     1.3    75.6    -      -       -      +
    850C  MET*     1.3    63.8    +      -       +      +
    852C  ALA*     3.2    12.0    +      -       -      +
    853C  ASN*     2.9    55.1    +      -       -      +
    856C  LYS*     5.7     2.6    -      -       -      +
    883C  MET*     3.9    31.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 850 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    846C  SER*     3.0    11.0    +      -       -      +
    847C  THR*     3.5    25.6    -      -       +      +
    849C  GLN*     1.3    76.5    -      -       +      +
    851C  TRP*     1.3    64.1    +      -       +      +
    853C  ASN*     3.1     7.0    +      -       -      +
    854C  ILE*     2.9    31.9    +      -       -      +
    915C  PRO*     3.7    30.5    -      -       +      -
    936C  MET*     5.1     4.5    -      -       +      +
    963C  ARG*     3.8    38.1    -      -       +      +
    966C  TYR*     3.8    30.5    -      -       +      -
    967C  GLU*     3.4    26.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 851 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    836C  ASN*     4.1    13.2    -      -       +      -
    843C  ILE*     3.9    27.1    -      -       +      -
    847C  THR*     3.6    36.8    +      -       +      +
    848C  LEU*     3.0    21.8    +      -       +      +
    850C  MET*     1.3    77.6    -      -       +      +
    852C  ALA*     1.3    67.1    +      -       -      +
    854C  ILE*     3.0     7.7    +      -       +      +
    855C  LEU*     2.8    32.6    +      -       +      +
    863C  LEU*     3.6    34.1    -      -       +      -
    865C  LEU*     4.4     6.7    -      -       +      -
    912C  LEU*     3.5    46.7    -      -       +      +
    914C  THR*     3.8    21.1    -      -       +      -
    966C  TYR*     3.1    32.9    +      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 852 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    848C  LEU*     2.9    14.1    +      -       +      +
    849C  GLN*     3.3    21.8    -      -       -      +
    851C  TRP*     1.3    74.8    -      -       -      +
    853C  ASN*     1.3    63.7    +      -       -      +
    855C  LEU*     3.3     3.0    +      -       -      +
    856C  LYS*     3.0    32.8    +      -       -      +
    880C  ALA*     6.3     0.2    -      -       -      -
    883C  MET*     4.2    20.4    -      -       +      -
    885C  LEU*     3.9    27.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 853 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    849C  GLN*     2.9    41.8    +      -       -      +
    850C  MET*     3.1     7.7    +      -       -      +
    852C  ALA*     1.3    73.0    -      -       -      +
    854C  ILE*     1.3    65.5    +      -       -      +
    856C  LYS*     2.9    25.6    +      -       -      +
    857C  ARG*     3.0    22.8    +      -       -      +
    967C  GLU*     2.9    37.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 854 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    834C  TYR*     4.0    28.3    -      -       +      +
    850C  MET      2.9    19.4    +      -       -      +
    851C  TRP*     3.4    13.5    -      -       +      +
    853C  ASN*     1.3    77.1    -      -       -      +
    855C  LEU*     1.3    65.7    +      -       +      +
    857C  ARG*     3.0    15.1    +      -       -      +
    858C  VAL*     3.1    12.9    +      -       -      +
    912C  LEU*     4.7     4.7    -      -       +      -
    966C  TYR*     3.7    34.5    -      -       +      -
    967C  GLU*     3.6    24.7    -      -       +      +
    970C  ALA*     3.7    27.8    -      -       +      -
    971C  VAL*     4.2    12.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 855 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    834C  TYR*     4.5     8.1    -      -       +      -
    848C  LEU*     6.5     0.2    -      -       +      -
    851C  TRP*     2.8    30.5    +      -       +      +
    852C  ALA      3.6     4.9    -      -       -      +
    854C  ILE*     1.3    75.4    -      -       +      +
    856C  LYS*     1.3    59.4    +      -       -      +
    858C  VAL      3.1    10.6    -      -       -      +
    859C  PRO*     4.7     0.5    -      -       -      +
    861C  SER*     3.2    26.7    -      -       -      +
    862C  VAL*     3.8    30.7    -      -       -      +
    863C  LEU*     3.8    26.7    -      -       +      +
    885C  LEU*     3.9    22.9    -      -       +      -
    889C  ARG*     2.5    36.5    +      -       +      +
    890C  ILE*     5.0     5.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 856 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    849C  GLN*     5.7     2.0    -      -       -      +
    852C  ALA*     3.0    27.0    +      -       -      +
    853C  ASN*     2.9    16.1    +      -       -      +
    855C  LEU*     1.3    76.5    -      -       -      +
    857C  ARG*     1.3    63.7    +      -       +      +
    858C  VAL      3.5     1.9    +      -       -      -
    859C  PRO*     4.9     3.6    -      -       -      +
    883C  MET*     3.0    28.4    +      -       -      -
    884C  GLY*     3.4    21.6    +      -       -      -
    885C  LEU*     4.0    11.7    -      -       +      +
    889C  ARG*     4.8     4.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 857 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    853C  ASN*     3.4    20.6    -      -       -      +
    854C  ILE*     3.0     9.0    +      -       -      +
    856C  LYS*     1.3    78.3    -      -       +      +
    858C  VAL*     1.3    62.1    +      -       -      +
    859C  PRO*     3.8     8.4    -      -       -      +
    964C  GLN*     4.4     5.7    -      -       -      +
    967C  GLU*     4.0    18.1    +      -       -      +
    968C  ASP*     2.9    29.1    +      -       -      +
    971C  VAL*     3.8    44.3    -      -       +      +
    975C  THR*     4.6     4.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 858 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    832C  ILE*     4.4     7.2    -      -       +      -
    834C  TYR*     3.8    20.4    -      -       +      +
    854C  ILE      3.1    13.2    +      -       -      +
    855C  LEU      3.1     6.4    -      -       -      +
    856C  LYS      3.3     0.6    -      -       -      -
    857C  ARG*     1.3    83.4    -      -       -      +
    859C  PRO*     1.3    69.2    -      -       +      +
    860C  ASN*     4.4     4.0    -      -       +      +
    861C  SER*     2.6    44.4    +      -       -      +
    889C  ARG*     3.5     0.2    +      -       -      -
    971C  VAL*     3.8    27.4    -      -       +      +
    974C  GLY*     3.5    23.1    -      -       -      +
    975C  THR*     3.9     9.6    -      -       +      -
----------------------------------------------------------
 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