Contacts of the helix formed by residues 207 - 221 (chain C) in PDB entry 1F9E


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 THR 207 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175C  LYS*     5.8     1.8    -      -       +      +
    206C  CYS*     1.3    76.0    -      -       -      +
    208C  VAL*     1.3    62.9    +      -       -      +
    209C  GLU*     3.4    11.1    -      -       -      +
    210C  GLN*     2.8    48.6    +      -       -      +
    211C  ILE*     2.8    22.6    +      -       -      +
    245C  GLY*     4.3     1.3    -      -       -      -
    246C  THR*     3.3    19.5    -      -       +      +
    247C  ASP*     3.0    33.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 208 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207C  THR*     1.3    72.8    -      -       -      +
    209C  GLU*     1.3    66.4    +      -       -      +
    211C  ILE*     3.0    11.0    +      -       +      +
    212C  TYR*     3.0    52.6    +      -       +      -
    245C  GLY*     3.7    11.7    -      -       -      +
    247C  ASP*     3.0     5.7    +      -       -      -
    254C  GLN*     3.0    53.4    -      -       +      +
    255C  GLU      3.7    15.3    -      -       -      +
    256C  ALA*     4.2     8.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 209 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207C  THR*     3.4    10.3    +      -       -      +
    208C  VAL*     1.3    82.7    -      -       -      +
    210C  GLN*     1.3    66.1    +      -       +      +
    212C  TYR*     3.4    11.9    +      -       -      +
    213C  GLU*     3.1    42.1    +      -       -      +
    247C  ASP*     5.5     1.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 210 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204C  HIS      5.1     1.7    -      -       -      +
    205C  ASP      4.2     5.9    +      -       -      +
    206C  CYS*     3.9    16.7    -      -       +      +
    207C  THR*     2.8    48.7    +      -       -      +
    209C  GLU*     1.3    74.6    -      -       +      +
    211C  ILE*     1.3    59.6    +      -       -      +
    213C  GLU*     3.3    16.7    -      -       -      +
    214C  ILE*     2.9    38.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 211 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168C  ILE*     3.8    30.1    -      -       +      -
    170C  ASN*     4.5     7.2    -      -       -      +
    206C  CYS*     3.8    19.7    -      -       +      +
    207C  THR      2.8    25.6    +      -       -      +
    208C  VAL*     3.0    12.1    +      -       -      +
    210C  GLN*     1.3    69.6    -      -       -      +
    212C  TYR*     1.3    68.4    +      -       +      +
    214C  ILE*     3.0    11.3    +      -       -      +
    215C  LEU*     2.9    40.3    +      -       +      +
    234C  ILE*     5.2     6.1    -      -       +      -
    236C  SER*     6.2     0.2    -      -       -      -
    243C  ILE*     4.4    20.9    -      -       +      -
    245C  GLY*     4.7     2.9    -      -       -      -
    256C  ALA*     5.5     3.1    -      -       +      -
    261C  LEU*     4.4    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 212 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  VAL*     3.0    42.8    +      -       +      -
    209C  GLU*     3.6    12.8    -      -       -      +
    211C  ILE*     1.3    76.3    -      -       +      +
    213C  GLU*     1.3    53.1    +      -       +      +
    215C  LEU*     3.1     7.0    +      -       +      +
    216C  LYS*     2.8    36.1    +      -       -      +
    255C  GLU      4.5     1.6    +      -       -      -
    256C  ALA*     3.9     7.0    -      -       +      -
    257C  PRO*     3.6    18.4    -      -       -      +
    260C  GLU*     3.6    32.8    +      -       +      +
    261C  LEU*     3.6    27.1    -      -       +      -
    264C  GLN*     4.8    12.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 213 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    209C  GLU*     3.1    38.2    +      -       +      +
    210C  GLN*     3.3    19.3    -      -       -      +
    212C  TYR*     1.3    76.4    -      -       -      +
    214C  ILE*     1.3    63.8    +      -       +      +
    216C  LYS*     3.1    17.2    +      -       -      +
    217C  ILE*     3.1    20.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 214 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166C  LEU*     4.0    18.8    -      -       +      -
    168C  ILE*     4.1     9.4    -      -       +      -
    203C  HIS*     3.1    61.9    -      -       +      +
    206C  CYS*     3.8    16.4    -      -       +      -
    210C  GLN*     2.9    18.8    +      -       +      +
    211C  ILE*     3.0     6.5    +      -       -      +
    213C  GLU*     1.3    75.9    -      -       +      +
    215C  LEU*     1.3    63.6    +      -       +      +
    217C  ILE*     3.3    16.9    +      -       +      +
    218C  TYR*     3.1    30.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 215 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166C  LEU*     3.7    25.8    -      -       +      -
    168C  ILE*     5.7     3.4    -      -       +      -
    211C  ILE*     2.9    27.5    +      -       +      +
    212C  TYR*     3.6     8.5    -      -       +      +
    214C  ILE*     1.3    73.9    -      -       +      +
    216C  LYS*     1.3    56.0    +      -       -      +
    218C  TYR*     3.2     2.7    +      -       -      +
    219C  GLN*     2.7    37.7    +      -       -      +
    232C  CYS*     4.1    17.7    -      -       -      -
    234C  ILE*     5.6     0.9    -      -       +      -
    261C  LEU*     3.7    48.0    -      -       +      +
    264C  GLN*     4.6    10.3    -      -       +      -
    265C  PHE*     3.7    26.0    -      -       +      -
    280C  PHE*     5.2     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 216 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212C  TYR      2.8    14.2    +      -       -      +
    213C  GLU*     3.1    14.1    +      -       -      +
    215C  LEU*     1.3    77.1    -      -       -      +
    217C  ILE*     1.3    63.3    +      -       +      +
    219C  GLN*     3.0    35.8    +      -       -      +
    220C  LEU*     2.9    53.2    +      -       +      +
    264C  GLN*     4.5     8.2    -      -       -      +
    269C  LYS*     4.8     9.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 217 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203C  HIS*     6.4     1.6    -      -       +      -
    213C  GLU*     3.1    15.0    +      -       +      +
    214C  ILE*     3.4    16.6    -      -       +      +
    215C  LEU      3.1     0.2    -      -       -      -
    216C  LYS*     1.3    76.8    -      -       +      +
    218C  TYR*     1.3    81.7    +      -       +      +
    220C  LEU*     3.0     9.4    +      -       -      +
    221C  MET*     3.0    34.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 218 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164C  TYR*     3.7    35.4    -      +       +      -
    166C  LEU*     3.4    36.3    -      -       +      -
    201C  LYS*     3.3    30.2    -      -       +      +
    203C  HIS*     4.4     6.6    +      +       -      -
    214C  ILE*     3.1    33.0    -      -       +      +
    215C  LEU      3.2     4.9    +      -       -      +
    217C  ILE*     1.3    91.3    -      -       +      +
    219C  GLN*     1.3    65.6    +      -       -      +
    221C  MET*     3.3    25.8    +      -       -      -
    224C  HIS*     2.9    27.1    +      +       -      +
    230C  PHE*     4.2    17.9    -      +       +      -
    265C  PHE*     3.9     9.3    -      -       +      -
    270C  CYS*     4.5     0.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 219 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215C  LEU      2.7    23.0    +      -       -      +
    216C  LYS*     3.0    39.9    +      -       -      +
    217C  ILE      3.1     0.2    -      -       -      -
    218C  TYR*     1.3    75.1    -      -       -      +
    220C  LEU*     1.3    78.2    +      -       -      +
    221C  MET      4.0     1.2    -      -       -      +
    264C  GLN*     3.2    39.9    +      -       +      +
    265C  PHE*     3.7    14.1    -      -       +      -
    269C  LYS*     3.2    35.8    +      -       -      +
    270C  CYS*     3.5    22.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 220 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216C  LYS*     2.9    45.0    +      -       +      +
    217C  ILE*     3.5     5.8    -      -       -      +
    219C  GLN*     1.3   100.2    -      -       -      +
    221C  MET*     1.3    65.4    +      -       -      +
    269C  LYS      5.3     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 221 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164C  TYR*     3.3    44.6    -      -       +      +
    217C  ILE*     3.0    26.8    +      -       +      +
    218C  TYR*     3.3    30.7    +      -       -      +
    219C  GLN      4.0     3.3    -      -       -      +
    220C  LEU*     1.3    83.7    -      -       -      +
    222C  ASP*     1.3    73.9    +      -       -      +
    224C  HIS*     3.6    14.4    -      -       -      +
    272C  SER*     3.3    13.3    +      -       -      -
----------------------------------------------------------
 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