Contacts of the helix formed by residues 908 - 922 (chain u) in PDB entry 6FF7


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 908 (chain u).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    906u  GLU      3.9     1.5    +      -       -      -
    907u  ASP*     1.3    75.3    -      -       -      +
    909u  VAL*     1.3    64.4    +      -       -      +
    910u  MET      3.3     2.0    -      -       -      -
    911u  LEU*     3.4    15.9    +      -       -      +
    912u  ASN*     3.2    21.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 909 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    866u  LYS*     6.5     0.7    -      -       +      -
    869u  MET*     5.8     2.6    -      -       -      +
    870u  GLU*     6.2     4.3    -      -       +      -
    907u  ASP*     3.6     8.2    -      -       +      +
    908u  SER*     1.3    78.0    -      -       -      +
    910u  MET*     1.3    59.1    +      -       -      +
    912u  ASN*     3.5     6.0    +      -       -      +
    913u  GLY*     2.9    24.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 910 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    869u  MET*     5.3    13.7    -      -       +      -
    899u  ALA*     6.0     5.8    -      -       +      +
    900u  PHE*     6.1     5.2    -      -       +      -
    907u  ASP*     5.1     4.3    +      -       -      +
    908u  SER*     3.3     0.6    -      -       -      +
    909u  VAL*     1.3    76.5    -      -       -      +
    911u  LEU*     1.3    60.1    +      -       -      +
    913u  GLY*     3.7     1.9    -      -       -      +
    914u  PHE*     2.9    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 911 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    907u  ASP      5.4     0.8    +      -       -      +
    908u  SER*     3.4    22.4    +      -       -      +
    909u  VAL      3.3     0.8    -      -       -      -
    910u  MET*     1.3    78.2    -      -       -      +
    912u  ASN*     1.3    56.9    +      -       -      +
    914u  PHE*     3.3     6.1    +      -       -      +
    915u  GLY*     2.9    24.4    +      -       -      -
    953u  ASP*     5.5    14.1    -      -       +      +
    954u  LEU*     6.4     1.3    -      -       -      -
    957u  ARG*     4.8     7.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 912 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    873u  GLU*     5.2     1.3    -      -       -      -
    908u  SER      3.2    12.6    +      -       -      +
    909u  VAL*     4.1     5.4    -      -       -      +
    911u  LEU*     1.3    77.0    -      -       -      +
    913u  GLY*     1.3    61.2    +      -       -      +
    915u  GLY*     3.8     2.1    -      -       -      +
    916u  THR*     2.9    30.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 913 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    869u  MET*     5.2     4.0    -      -       -      -
    873u  GLU*     3.7    26.6    -      -       -      +
    909u  VAL      2.9    17.8    +      -       -      -
    910u  MET*     3.7     3.1    -      -       -      -
    912u  ASN*     1.3    74.5    -      -       -      +
    914u  PHE*     1.3    58.7    +      -       -      +
    916u  THR*     3.3     2.8    +      -       -      -
    917u  VAL*     2.9    29.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 914 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    896u  ILE*     5.9     9.0    -      -       +      -
    910u  MET      2.9    16.7    +      -       -      +
    911u  LEU*     3.7     5.8    -      -       -      +
    913u  GLY*     1.3    74.0    -      -       -      +
    915u  GLY*     1.3    59.1    +      -       -      +
    917u  VAL*     3.3     7.4    +      -       -      +
    918u  VAL*     2.9    30.5    +      -       -      +
    954u  LEU*     6.5     0.9    -      -       +      -
    957u  ARG*     6.2     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 915 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    911u  LEU      2.9    14.5    +      -       -      -
    912u  ASN*     3.8     4.5    -      -       -      -
    913u  GLY      3.3     0.2    -      -       -      -
    914u  PHE*     1.3    77.8    -      -       -      +
    916u  THR*     1.3    55.8    +      -       -      +
    918u  VAL*     3.9     3.8    -      -       -      +
    919u  ASN*     2.9    30.8    +      -       -      +
    957u  ARG*     4.4    21.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 916 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    873u  GLU*     4.6    19.1    -      -       -      -
    876u  MET*     5.3     4.9    -      -       -      +
    877u  GLY*     5.3     9.2    -      -       -      -
    912u  ASN      2.9    18.0    +      -       -      -
    913u  GLY*     3.3     6.5    +      -       -      -
    915u  GLY*     1.3    73.0    -      -       -      +
    917u  VAL*     1.3    59.9    -      -       -      +
    919u  ASN*     3.4     5.8    +      -       -      +
    920u  ALA*     2.9    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 917 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    876u  MET*     5.4     8.0    -      -       +      +
    913u  GLY      2.9    17.6    +      -       -      +
    914u  PHE*     3.7     7.9    -      -       -      +
    915u  GLY      3.3     0.2    -      -       -      -
    916u  THR*     1.3    75.4    -      -       -      +
    918u  VAL*     1.3    58.0    +      -       -      +
    920u  ALA*     3.3     6.0    +      -       -      +
    921u  LEU*     2.9    28.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 918 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    914u  PHE      2.9    17.5    +      -       -      +
    915u  GLY*     4.3     3.4    -      -       -      +
    917u  VAL*     1.3    75.5    -      -       -      +
    919u  ASN*     1.3    58.0    +      -       -      +
    921u  LEU*     4.3     5.8    -      -       -      -
    922u  GLY*     2.9    27.7    +      -       -      -
    925u  VAL*     5.6     6.8    -      -       +      +
    957u  ARG      6.0     1.6    -      -       -      +
    958u  THR*     5.7     9.6    -      -       -      -
    961u  VAL*     3.9    21.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 919 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    915u  GLY      2.9    19.8    +      -       -      +
    916u  THR*     3.8     6.3    -      -       -      +
    918u  VAL*     1.3    78.8    -      -       -      +
    920u  ALA*     1.3    58.8    +      -       -      +
    921u  LEU      4.6     0.3    -      -       -      -
    922u  GLY*     4.2     5.6    +      -       -      -
    961u  VAL*     5.0     4.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 920 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    876u  MET*     4.3    21.3    -      -       +      +
    880u  GLY*     4.8     1.6    -      -       -      -
    881u  ALA*     3.9    31.6    -      -       +      +
    916u  THR      2.9    17.0    +      -       -      +
    917u  VAL*     3.3     6.3    +      -       -      +
    919u  ASN*     1.3    75.3    -      -       -      +
    921u  LEU*     1.3    66.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 921 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    881u  ALA*     4.9     4.2    -      -       -      +
    917u  VAL      2.9    16.8    +      -       -      +
    918u  VAL*     3.8     5.2    -      -       -      +
    919u  ASN      3.3     0.2    -      -       -      -
    920u  ALA*     1.3    80.6    -      -       -      +
    922u  GLY*     1.3    60.8    +      -       -      +
    923u  LYS      3.1     8.0    +      -       -      -
    924u  ARG*     3.5    18.7    +      -       +      +
    925u  VAL*     4.0    26.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 922 (chain u). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    918u  VAL      2.9    20.3    +      -       -      -
    919u  ASN*     4.2     5.1    +      -       -      -
    920u  ALA      3.7     1.0    -      -       -      -
    921u  LEU*     1.3    70.6    -      -       -      +
    923u  LYS*     1.3    60.7    +      -       -      -
    924u  ARG      3.6     0.3    +      -       -      -
    925u  VAL*     3.9    11.6    +      -       -      +
    961u  VAL*     4.2    13.8    -      -       -      +
    964u  THR*     5.2     7.6    -      -       -      -
    965u  CYS*     4.0    15.7    -      -       -      +
----------------------------------------------------------
 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