Contacts of the helix formed by residues 868 - 882 (chain A) in PDB entry 4FM9


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 868 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    780A  ASN*     4.5     2.7    -      -       -      +
    867A  PHE*     1.3    70.9    -      -       -      +
    869A  VAL*     1.3    67.0    +      -       -      +
    870A  ARG*     3.3    32.2    -      -       -      +
    871A  GLU*     3.4    32.1    +      -       +      +
    872A  ILE*     3.0    25.1    +      -       -      +
    889A  LEU      5.2     0.6    +      -       -      -
    891A  SER*     3.3    30.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 869 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    780A  ASN*     5.2     1.2    -      -       +      +
    781A  LEU*     4.6     1.6    -      -       +      -
    845A  ILE*     4.1     9.2    -      -       +      -
    850A  ILE*     3.9    24.4    -      -       +      +
    867A  PHE      3.3     3.7    +      -       -      -
    868A  ASP*     1.3    73.3    +      -       -      +
    870A  ARG*     1.3    90.0    +      -       +      +
    872A  ILE*     2.9    12.1    +      -       -      +
    873A  VAL*     2.8    25.1    +      -       +      +
   1174A  PHE*     3.7    34.3    -      -       +      -
   1175A  ILE*     5.7     0.7    -      -       +      -
   1178A  LEU*     4.9    16.2    -      -       +      -
   1182A  GLU*     5.1     4.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 870 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    868A  ASP*     3.3    15.2    -      -       -      +
    869A  VAL*     1.3    81.2    -      -       +      +
    871A  GLU*     1.3    55.6    +      -       +      +
    873A  VAL*     2.8    13.0    +      -       -      +
    874A  ASN*     2.7    35.1    +      -       -      +
   1175A  ILE*     5.2    14.3    -      -       -      +
   1178A  LEU*     3.9    11.2    -      -       -      +
   1179A  GLU*     2.5    39.0    +      -       -      -
   1182A  GLU*     2.7    34.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 871 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    867A  PHE*     6.4     0.2    -      -       +      -
    868A  ASP*     3.4    32.8    +      -       +      +
    869A  VAL      3.3     0.4    -      -       -      -
    870A  ARG*     1.3    78.3    -      -       +      +
    872A  ILE*     1.3    64.1    +      -       -      +
    874A  ASN*     3.3    10.3    +      -       -      +
    875A  ASN*     2.8    33.2    +      -       -      +
    887A  PRO      4.9     1.7    -      -       -      +
    888A  MET*     3.9    31.8    -      -       +      +
    889A  LEU      4.4    11.6    +      -       -      +
    891A  SER*     5.4     1.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 872 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    845A  ILE*     4.2     8.7    -      -       +      -
    846A  PRO*     3.3    38.4    -      -       +      +
    849A  LEU*     4.3    17.7    -      -       +      +
    850A  ILE*     5.2     7.0    -      -       +      -
    867A  PHE*     4.0    20.2    -      -       +      +
    868A  ASP      3.0    18.7    +      -       -      +
    869A  VAL*     2.9    11.4    +      -       +      +
    871A  GLU*     1.3    77.6    -      -       -      +
    873A  VAL*     1.3    66.7    +      -       +      +
    875A  ASN*     3.0     2.4    +      -       -      +
    876A  ILE*     2.9    30.8    +      -       +      +
    888A  MET*     3.8    28.5    -      -       +      -
   1019A  LEU*     5.1     3.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 873 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    845A  ILE*     4.3    18.2    -      -       +      -
    869A  VAL*     2.8    25.3    +      -       +      +
    870A  ARG*     2.8    13.4    +      -       -      +
    872A  ILE*     1.3    71.6    -      -       -      +
    874A  ASN*     1.3    53.9    +      -       -      +
    876A  ILE*     2.9    11.8    +      -       -      +
    877A  ARG*     2.7    41.2    +      -       +      +
   1171A  LEU*     4.7    23.2    -      -       +      +
   1174A  PHE*     4.9     2.7    -      -       +      -
   1175A  ILE*     3.9    31.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 874 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    870A  ARG      2.7    15.4    +      -       -      +
    871A  GLU*     3.4    14.3    +      -       -      +
    873A  VAL*     1.3    73.6    -      -       -      +
    875A  ASN*     1.3    56.3    +      -       -      +
    877A  ARG*     2.8    37.4    +      -       -      +
    878A  ARG*     2.6    39.4    +      -       -      +
    886A  LEU*     3.7    28.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 875 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    871A  GLU*     2.8    31.8    +      -       -      +
    872A  ILE      3.7     2.7    -      -       -      +
    874A  ASN*     1.3    82.8    -      -       -      +
    876A  ILE*     1.3    57.8    +      -       -      +
    878A  ARG*     3.7     6.6    -      -       -      +
    879A  LEU*     2.8    31.0    +      -       -      +
    885A  PRO*     3.1    11.9    -      -       +      +
    886A  LEU*     2.6    57.3    +      -       -      +
    888A  MET*     4.0    17.7    -      -       -      +
   1019A  LEU*     3.8    21.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 876 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    844A  ILE      4.1     3.1    -      -       -      +
    845A  ILE*     3.9    18.6    -      -       +      -
    846A  PRO*     3.3    31.6    -      -       +      -
    872A  ILE*     2.9    23.3    +      -       +      +
    873A  VAL*     3.4     7.6    -      -       -      +
    875A  ASN*     1.3    73.5    -      -       -      +
    877A  ARG*     1.3    61.3    +      -       -      +
    879A  LEU*     4.4     3.4    -      -       -      -
    880A  MET*     2.8    32.9    +      -       +      +
   1019A  LEU*     4.0    18.8    -      -       +      -
   1022A  PHE*     4.6     4.7    -      -       +      -
   1023A  PHE*     3.7    10.9    -      -       +      -
   1167A  TRP*     3.6    36.3    -      -       +      +
   1171A  LEU*     4.8     8.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 877 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    873A  VAL*     2.7    22.7    +      -       +      +
    874A  ASN*     2.8    43.5    +      -       -      +
    876A  ILE*     1.3    72.2    -      -       -      +
    878A  ARG*     1.3    79.6    +      -       -      +
    880A  MET*     3.7    18.9    -      -       +      +
    881A  ASP*     2.8    45.7    +      -       -      +
    883A  GLU*     5.4     1.6    +      -       -      -
   1171A  LEU*     5.6     4.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 878 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    874A  ASN*     2.6    27.9    +      -       -      +
    875A  ASN*     3.7     7.6    -      -       -      +
    876A  ILE      3.2     0.2    -      -       -      -
    877A  ARG*     1.3    93.3    -      -       -      +
    879A  LEU*     1.3    64.6    +      -       -      +
    881A  ASP*     3.4     5.8    +      -       -      +
    882A  GLY      3.3     5.9    +      -       -      -
    883A  GLU*     3.1    49.1    +      -       +      +
    884A  GLU      2.8    27.8    +      -       -      +
    885A  PRO*     4.1     0.9    -      -       +      -
    886A  LEU*     3.3    48.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 879 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    875A  ASN      2.8    18.9    +      -       -      +
    876A  ILE*     3.9     3.1    -      -       -      +
    878A  ARG*     1.3    78.4    -      -       -      +
    880A  MET*     1.3    60.5    +      -       -      +
    882A  GLY*     3.3    12.3    +      -       -      -
    883A  GLU      3.3    16.2    +      -       -      +
    884A  GLU*     5.3     4.5    -      -       -      +
    885A  PRO*     4.5    19.0    -      -       +      -
   1019A  LEU*     4.7     9.0    -      -       +      +
   1020A  ARG*     4.7    20.0    -      -       +      -
   1023A  PHE*     3.1    50.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 880 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    876A  ILE*     2.8    20.6    +      -       +      +
    877A  ARG*     3.7    18.4    -      -       +      +
    879A  LEU*     1.3    76.2    -      -       -      +
    881A  ASP*     1.3    67.3    +      -       +      +
    882A  GLY*     3.2     1.6    +      -       -      -
   1023A  PHE*     3.5    20.3    -      -       +      -
   1164A  SER*     2.9    44.8    -      -       -      +
   1167A  TRP*     4.5    19.5    -      -       +      -
   1168A  LYS*     4.5    24.9    -      -       +      +
   1171A  LEU*     4.9     7.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 881 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    877A  ARG*     2.8    28.5    +      -       -      +
    878A  ARG*     3.4     9.9    -      -       -      +
    880A  MET*     1.3    79.9    -      -       -      +
    882A  GLY*     1.3    57.9    +      -       -      +
    883A  GLU*     3.8    24.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 882 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    878A  ARG      3.3     0.2    +      -       -      -
    879A  LEU      3.3     7.1    +      -       -      -
    880A  MET      3.1     4.5    -      -       -      -
    881A  ASP*     1.3    79.1    -      -       -      +
    883A  GLU*     1.3    69.8    +      -       -      +
----------------------------------------------------------
 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