Contacts of the helix formed by residues 209 - 226 (chain C) in PDB entry 3TQI


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 209 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206C  PRO      4.3     7.1    +      -       -      -
    207C  ASN*     2.8    10.6    +      -       -      -
    208C  TRP*     1.3    74.6    -      -       -      +
    210C  THR*     1.3    73.3    +      -       +      +
    211C  LYS*     3.5    22.7    -      -       +      +
    212C  HIS*     3.1    27.5    +      -       +      +
    213C  ILE*     2.9    26.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 210 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208C  TRP      4.4     0.2    +      -       -      -
    209C  THR*     1.3    75.9    -      -       +      +
    211C  LYS*     1.3    66.1    +      -       +      +
    213C  ILE*     3.2    12.8    +      -       -      +
    214C  ILE*     3.1    37.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 211 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  ILE*     4.6    10.9    -      -       -      +
    200A  HIS*     3.9    29.7    +      -       -      -
    209C  THR*     3.3    15.1    -      -       +      +
    210C  THR*     1.3    80.5    +      -       +      +
    212C  HIS*     1.3    67.0    +      -       +      +
    214C  ILE*     3.6    11.5    +      -       +      +
    215C  GLU*     3.3    32.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 212 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  ILE*     4.1    24.8    -      -       +      +
    207C  ASN*     3.3    40.5    +      -       +      +
    209C  THR*     3.1    27.8    +      -       +      +
    211C  LYS*     1.3    79.2    -      -       +      +
    213C  ILE*     1.3    66.0    +      -       -      +
    215C  GLU*     3.3    19.8    +      -       -      +
    216C  ASP*     3.0    24.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 213 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  ILE*     5.8     1.3    -      -       +      -
    208C  TRP*     3.4    57.7    -      -       +      +
    209C  THR      2.9    22.0    +      -       -      +
    210C  THR*     3.7    11.4    -      -       -      +
    212C  HIS*     1.3    75.5    -      -       -      +
    214C  ILE*     1.3    59.5    +      -       +      +
    216C  ASP*     3.4     5.4    +      -       -      +
    217C  SER*     2.8    35.1    +      -       -      +
    374C  PRO      6.0     0.4    -      -       -      +
    378C  LEU*     3.9    32.8    -      -       +      -
----------------------------------------------------------
 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
----------------------------------------------------------
    210C  THR*     3.1    28.8    +      -       -      +
    211C  LYS*     3.7    12.1    -      -       +      +
    212C  HIS      3.2     0.2    -      -       -      -
    213C  ILE*     1.3    78.2    -      -       +      +
    215C  GLU*     1.3    66.6    +      -       +      +
    217C  SER*     3.2     5.7    +      -       -      -
    218C  ILE*     3.0    42.0    +      -       +      +
    246C  LEU*     4.4    16.2    -      -       +      -
    249C  LYS*     5.7     5.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 215 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  ILE*     6.1     2.0    -      -       +      -
    211C  LYS*     3.3    20.9    +      -       -      +
    212C  HIS*     3.3    24.1    +      -       -      +
    214C  ILE*     1.3    80.0    -      -       +      +
    216C  ASP*     1.3    61.7    +      -       -      +
    218C  ILE*     3.6     8.4    +      -       +      +
    219C  ARG*     3.2    27.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 216 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  ILE*     4.4    24.3    +      -       +      +
      6C  HIS*     3.9    30.8    +      -       -      -
    212C  HIS      3.0    17.9    +      -       -      +
    213C  ILE*     3.8     6.0    -      -       -      +
    215C  GLU*     1.3    75.7    -      -       -      +
    217C  SER*     1.3    61.4    +      -       -      +
    219C  ARG*     3.4     7.0    +      -       -      +
    220C  ASP*     2.9    32.7    +      -       -      +
    377C  GLU*     5.4     1.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 217 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213C  ILE*     2.8    25.0    +      -       -      +
    214C  ILE*     3.2     4.5    +      -       -      -
    216C  ASP*     1.3    78.1    +      -       -      +
    218C  ILE*     1.3    64.6    +      -       -      +
    220C  ASP*     3.4     6.1    +      -       -      +
    221C  ILE*     3.0    30.3    +      -       -      +
    246C  LEU*     3.7    26.6    -      -       -      +
    374C  PRO*     3.7    25.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 218 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214C  ILE*     3.0    38.1    +      -       +      +
    215C  GLU*     3.9     8.5    -      -       +      +
    217C  SER*     1.3    73.3    -      -       -      +
    219C  ARG*     1.3    67.4    +      -       +      +
    221C  ILE*     3.1     4.2    +      -       -      +
    222C  GLN*     3.0    37.0    +      -       -      +
    246C  LEU*     4.4    16.6    -      -       +      +
    249C  LYS*     4.4    22.7    -      -       +      +
    250C  ALA*     3.5    34.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 219 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215C  GLU*     3.2    15.7    +      -       +      +
    216C  ASP*     3.6    10.1    -      -       -      +
    218C  ILE*     1.3    79.2    -      -       +      +
    220C  ASP*     1.3    54.4    +      -       -      +
    222C  GLN*     3.1    19.4    +      -       -      +
    223C  GLU*     2.8    51.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 220 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216C  ASP*     2.9    24.0    +      -       -      +
    217C  SER*     3.7     8.3    -      -       -      +
    219C  ARG*     1.3    76.6    -      -       -      +
    221C  ILE*     1.3    63.2    +      -       -      +
    223C  GLU*     3.6    14.9    +      -       -      +
    224C  LYS*     3.2    54.5    +      -       -      +
    372C  ILE*     4.3     5.0    -      -       -      +
    374C  PRO*     6.1     1.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 221 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217C  SER      3.0    20.0    +      -       -      +
    218C  ILE*     3.1     6.3    +      -       -      +
    220C  ASP*     1.3    76.6    -      -       -      +
    222C  GLN*     1.3    60.0    +      -       -      +
    224C  LYS*     3.3     3.2    +      -       -      -
    225C  VAL*     2.9    40.6    +      -       +      +
    230C  VAL*     5.6     0.9    -      -       +      -
    246C  LEU*     4.4     7.9    -      -       +      -
    247C  VAL*     3.7    45.3    -      -       +      +
    250C  ALA*     3.9    17.3    -      -       +      -
    251C  ILE*     4.1    13.5    -      -       +      -
    372C  ILE*     4.5    19.3    -      -       +      -
    374C  PRO*     4.2    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 222 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218C  ILE*     3.0    33.2    +      -       -      +
    219C  ARG*     3.6    25.7    +      -       -      +
    221C  ILE*     1.3    74.3    -      -       -      +
    223C  GLU*     1.3    66.4    +      -       -      +
    226C  GLY*     2.9    29.5    +      -       -      +
    249C  LYS      5.0     1.0    +      -       -      -
    250C  ALA*     2.9    32.5    +      -       +      +
    251C  ILE*     4.7     6.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 223 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219C  ARG*     2.8    34.9    +      -       +      +
    220C  ASP*     3.8    17.9    +      -       -      +
    222C  GLN*     1.3    74.9    -      -       -      +
    224C  LYS*     1.3    62.8    +      -       +      +
    226C  GLY*     4.1     3.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 224 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220C  ASP*     3.2    38.4    +      -       -      +
    221C  ILE      3.9     2.2    -      -       -      +
    223C  GLU*     1.3    82.0    -      -       +      +
    225C  VAL*     1.3    64.6    +      -       +      +
    228C  GLU*     5.3     0.5    -      -       -      +
    330C  TRP*     3.3    33.2    -      -       +      -
    371C  LEU      5.5     1.8    +      -       -      +
    372C  ILE*     3.3    33.5    -      -       +      +
    373C  GLU      5.4     2.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 225 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221C  ILE*     2.9    25.9    +      -       +      +
    224C  LYS*     1.3    81.0    -      -       +      +
    226C  GLY*     1.3    70.7    +      -       -      +
    227C  LYS      3.0     3.5    +      -       -      -
    228C  GLU*     3.1    45.2    -      -       +      +
    230C  VAL*     3.5    28.3    -      -       +      -
    251C  ILE*     4.1     8.7    -      -       +      -
    254C  GLN*     3.9     4.5    -      -       -      +
    330C  TRP*     3.9    26.7    -      -       +      -
    372C  ILE*     5.2     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 226 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222C  GLN*     2.9    20.9    +      -       -      +
    223C  GLU      4.1     2.4    +      -       -      -
    224C  LYS      3.5     2.2    -      -       -      -
    225C  VAL*     1.3    77.8    -      -       -      +
    227C  LYS*     1.3    61.4    +      -       -      +
    251C  ILE*     4.6     5.7    -      -       -      +
    254C  GLN*     3.5    11.3    +      -       -      +
----------------------------------------------------------
 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