Contacts of the helix formed by residues 90 - 104 (chain p) 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 TYR 90 (chain p).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452O  PHE*     4.8     0.2    -      -       -      +
    453O  LYS*     1.5    27.5    -      -       +      +
     49p  VAL*     5.8    10.3    -      -       +      +
     53p  VAL*     5.7     7.6    -      -       +      +
     83p  PHE*     5.0    13.2    -      -       +      -
     88p  ASP*     3.4     2.7    -      -       +      +
     89p  PRO*     1.3    63.3    -      -       -      +
     91p  HIS*     1.3    64.9    +      -       -      +
     92p  ALA      3.2     3.1    -      -       -      -
     93p  TYR*     2.9    26.1    +      -       +      +
     94p  TYR*     3.1    12.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 91 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    449O  GLN      3.1    23.0    +      -       -      +
    450O  GLU*     4.5     0.9    -      -       -      +
     83p  PHE      3.6    14.2    +      -       -      +
     84p  LEU      5.5     0.4    -      -       -      -
     85p  ASN      3.5    16.4    -      -       -      +
     86p  PRO*     4.0     9.9    -      -       +      +
     88p  ASP*     3.2     4.5    +      -       -      +
     89p  PRO      3.2     1.4    -      -       -      -
     90p  TYR*     1.3    77.1    -      -       -      +
     92p  ALA*     1.3    62.4    +      -       -      +
     94p  TYR*     3.2    13.8    +      -       -      +
     95p  ARG*     3.3    12.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 92 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89p  PRO      4.3     8.1    +      -       -      +
     90p  TYR      3.2     0.4    -      -       -      -
     91p  HIS*     1.3    78.7    -      -       -      +
     93p  TYR*     1.3    62.9    +      -       -      +
     95p  ARG*     3.5    19.6    +      -       -      +
     96p  HIS*     3.7     6.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 93 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53p  VAL*     5.9     3.1    -      -       +      -
     89p  PRO      5.1     0.2    +      -       -      -
     90p  TYR*     2.9    23.0    +      -       +      +
     92p  ALA*     1.3    77.0    -      -       -      +
     94p  TYR*     1.3    63.8    +      -       -      +
     96p  HIS*     3.2    16.9    +      -       -      +
     97p  LYS*     3.2    11.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 94 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53p  VAL*     4.6    24.5    -      -       +      +
     57p  ALA*     4.2     4.3    -      -       +      +
     83p  PHE*     5.3     8.3    -      -       +      +
     84p  LEU*     6.3     1.1    -      -       -      -
     90p  TYR      3.1     9.7    +      -       -      +
     91p  HIS*     3.5    11.9    -      -       -      +
     93p  TYR*     1.3    73.1    -      -       -      +
     95p  ARG*     1.3    65.6    +      -       -      +
     97p  LYS*     3.0    20.4    +      -       -      +
     98p  VAL*     3.1    14.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 95 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91p  HIS      3.3     9.8    +      -       -      +
     92p  ALA*     3.5    14.4    -      -       -      +
     93p  TYR      3.3     0.4    -      -       -      -
     94p  TYR*     1.3    77.6    -      -       -      +
     96p  HIS*     1.3    63.2    +      -       -      +
     98p  VAL*     3.6    11.8    +      -       -      +
     99p  SER*     3.7    11.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 96 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92p  ALA      3.7     6.1    +      -       -      +
     93p  TYR*     3.2    11.8    +      -       -      +
     94p  TYR      3.2     0.4    -      -       -      -
     95p  ARG*     1.3    77.8    -      -       -      +
     97p  LYS*     1.3    65.0    +      -       -      +
     99p  SER*     3.1     8.9    +      -       -      -
    100p  GLU*     2.9    24.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 97 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53p  VAL*     4.9     0.7    -      -       +      +
     54p  ASP*     4.6    13.7    -      -       -      +
     57p  ALA*     3.4    22.2    -      -       +      -
     93p  TYR      3.2     8.6    +      -       -      +
     94p  TYR*     3.0    10.1    +      -       -      +
     96p  HIS*     1.3    76.8    -      -       -      +
     98p  VAL*     1.3    63.0    +      -       -      +
    100p  GLU*     3.2     9.3    +      -       -      +
    101p  PHE*     2.8    26.3    +      -       -      +
    106p  ALA*     5.4     0.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 98 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57p  ALA*     3.7    22.6    -      -       +      +
     60p  VAL*     5.6     4.9    -      -       +      -
     61p  ALA*     3.3    15.4    -      -       +      +
     94p  TYR      3.1    10.3    +      -       -      +
     95p  ARG*     3.7    11.4    -      -       -      +
     96p  HIS      3.2     0.4    +      -       -      -
     97p  LYS*     1.3    76.3    -      -       -      +
     99p  SER*     1.3    62.6    +      -       -      +
    102p  LYS*     3.1    20.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 99 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95p  ARG      3.7     7.3    +      -       -      -
     96p  HIS*     3.1    10.4    +      -       -      -
     98p  VAL*     1.3    78.1    -      -       -      +
    100p  GLU*     1.3    56.4    +      -       -      +
    102p  LYS*     3.3     8.6    +      -       -      +
    103p  GLU*     3.0    28.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 100 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96p  HIS*     2.9    17.2    +      -       +      +
     97p  LYS*     3.4     9.0    -      -       -      +
     99p  SER*     1.3    73.4    -      -       -      +
    101p  PHE*     1.3    64.7    +      -       -      +
    103p  GLU*     3.2     8.0    +      -       -      +
    104p  GLY      3.0    16.6    +      -       -      -
    105p  LYS*     3.3    12.5    +      -       +      -
    106p  ALA*     3.9    21.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 101 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    621M  ARG*     4.8     7.8    -      -       -      +
     58p  SER*     4.1    18.4    -      -       -      +
     61p  ALA*     3.5    22.7    -      -       +      -
     97p  LYS      2.8    16.8    +      -       -      +
    100p  GLU*     1.3    72.9    -      -       -      +
    102p  LYS*     1.3    62.8    +      -       -      +
    104p  GLY*     3.0    15.5    +      -       -      -
    106p  ALA*     4.5     3.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 102 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61p  ALA*     3.9    17.8    -      -       +      +
     98p  VAL      3.1    13.9    +      -       -      +
     99p  SER*     3.4    12.3    -      -       -      +
    100p  GLU      3.2     0.2    -      -       -      -
    101p  PHE*     1.3    78.1    -      -       -      +
    103p  GLU*     1.3    60.0    +      -       -      +
    104p  GLY*     3.3     1.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 103 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    658M  VAL*     4.7    14.6    -      -       -      +
     99p  SER      3.0    13.8    +      -       -      +
    100p  GLU*     3.2    12.3    +      -       -      +
    102p  LYS*     1.3    75.7    -      -       -      +
    104p  GLY*     1.3    61.4    +      -       -      +
    105p  LYS*     4.5    11.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 104 (chain p). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    620M  THR*     3.1     8.8    -      -       -      +
    621M  ARG*     2.9    16.2    +      -       -      -
    100p  GLU      3.0     1.2    +      -       -      -
    101p  PHE      3.0    17.6    +      -       -      -
    102p  LYS      3.1     2.1    -      -       -      -
    103p  GLU*     1.3    78.3    -      -       -      +
    105p  LYS*     1.3    57.9    +      -       -      +
----------------------------------------------------------
 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