Contacts of the helix formed by residues 211 - 223 (chain F) in PDB entry 2POZ


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 211 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275E  GLY      4.9     0.2    -      -       -      -
    301E  ASN*     3.4    23.1    -      -       -      +
    302E  MSE      3.9    20.0    -      -       -      +
    303E  ARG*     3.5    28.6    +      -       +      +
    327E  ASN*     6.1     0.9    -      -       +      -
    174F  ARG      5.7     0.4    -      -       -      +
    175F  ARG*     3.5    22.1    +      -       +      +
    176F  SER*     5.6     1.6    -      -       -      +
    210F  LEU*     1.3    82.2    -      -       -      +
    212F  THR*     1.3    67.9    +      -       -      +
    213F  ASP*     2.6    22.8    +      -       -      -
    214F  GLU*     3.3     6.8    +      -       -      +
    215F  THR*     3.1    17.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 212 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274E  CYS      5.7     1.6    -      -       -      -
    275E  GLY*     5.5     5.8    -      -       -      -
    300E  TYR      4.6     1.9    +      -       -      -
    301E  ASN*     3.1    36.1    +      -       -      +
    302E  MSE      6.5     0.2    -      -       -      -
    211F  THR*     1.3    72.3    -      -       -      +
    213F  ASP*     1.3    65.2    +      -       -      +
    215F  THR*     3.3     5.6    +      -       -      -
    216F  ILE*     3.0    47.2    +      -       +      +
    241F  ALA*     3.6    10.3    -      -       -      +
    244F  VAL*     4.1    18.2    -      -       +      -
    245F  ILE*     4.1    14.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 213 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252E  PRO*     3.9    30.8    -      -       +      +
    275E  GLY*     4.2    18.8    -      -       -      +
    276E  ILE*     3.7    13.5    -      -       -      +
    303E  ARG*     2.8    31.9    +      -       -      -
    211F  THR*     2.6    30.2    +      -       -      -
    212F  THR*     1.3    78.1    -      -       -      +
    214F  GLU*     1.3    69.0    +      -       -      +
    216F  ILE*     3.3     7.7    +      -       -      +
    217F  ARG*     3.0    21.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 214 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228E  CYS*     5.2     2.4    -      -       -      -
    303E  ARG*     2.7    41.9    +      -       -      +
    182F  ILE*     3.8    22.8    -      -       +      +
    210F  LEU*     3.6    30.6    -      -       +      +
    211F  THR*     3.3     4.2    +      -       -      +
    213F  ASP*     1.3    82.4    +      -       -      +
    215F  THR*     1.3    61.3    +      -       -      +
    217F  ARG*     2.7    41.6    +      -       -      +
    218F  PHE*     3.0    28.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 215 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206F  LEU*     4.1    15.3    -      -       +      -
    210F  LEU*     3.0    32.6    +      -       -      +
    211F  THR      3.1    13.1    +      -       -      -
    212F  THR*     3.8     4.2    -      -       -      -
    214F  GLU*     1.3    73.9    -      -       -      +
    216F  ILE*     1.3    61.5    +      -       -      +
    218F  PHE*     3.2     5.5    +      -       -      +
    219F  CYS*     2.9    33.4    +      -       -      -
    233F  PRO*     3.2    38.2    +      -       +      +
    245F  ILE*     4.1    12.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 216 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    212F  THR*     3.0    40.1    +      -       +      +
    213F  ASP*     3.6     6.5    -      -       -      +
    215F  THR*     1.3    76.8    -      -       -      +
    217F  ARG*     1.3    63.8    +      -       -      +
    219F  CYS*     3.3     1.6    +      -       -      +
    220F  ARG*     3.0    60.4    +      -       -      +
    244F  VAL*     4.5     6.1    -      -       +      -
    245F  ILE*     4.2    14.6    -      -       +      -
    248F  GLN*     3.8    32.1    -      -       +      +
    249F  ILE*     3.9    13.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 217 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226E  ASP*     4.5    12.9    +      -       -      -
    227E  ILE      2.8    30.3    +      -       -      -
    228E  CYS*     3.5    15.2    +      -       -      +
    251E  LEU*     5.7     0.8    -      -       -      +
    252E  PRO*     3.5    26.6    -      -       +      +
    182F  ILE*     6.2     3.8    -      -       +      -
    213F  ASP      3.0    15.5    +      -       -      +
    214F  GLU*     2.7    45.4    +      -       -      +
    216F  ILE*     1.3    80.3    -      -       -      +
    218F  PHE*     1.3    62.0    +      -       -      +
    220F  ARG*     3.4     8.6    +      -       -      +
    221F  LYS*     3.0    26.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 218 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160F  PRO*     4.4     5.6    -      -       +      -
    161F  LEU*     4.4     8.5    -      -       +      -
    177F  MSE      5.9     1.8    -      -       +      -
    182F  ILE*     4.1    23.6    -      -       +      -
    185F  ALA*     3.8    26.5    -      -       +      -
    186F  TYR*     3.6    31.4    -      -       +      -
    189F  VAL*     4.2     6.5    -      -       +      -
    206F  LEU*     4.0    34.8    -      -       +      -
    210F  LEU*     5.5     4.0    -      -       +      -
    214F  GLU      3.0    17.2    +      -       -      +
    215F  THR*     3.7     5.2    -      -       -      +
    217F  ARG*     1.3    76.3    -      -       -      +
    219F  CYS*     1.3    67.1    +      -       -      +
    221F  LYS*     3.1    11.7    +      -       +      +
    222F  ILE*     3.0    52.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 219 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206F  LEU*     4.1    17.0    -      -       -      -
    215F  THR*     2.9    35.3    +      -       -      +
    218F  PHE*     1.3    78.9    -      -       -      +
    220F  ARG*     1.3    62.0    +      -       -      +
    222F  ILE*     3.4    12.7    -      -       -      +
    223F  GLY*     3.2    17.7    +      -       -      -
    230F  VAL*     4.2    12.8    -      -       -      -
    233F  PRO*     5.0     0.9    -      -       -      -
    249F  ILE*     3.7    40.6    -      -       +      -
    250F  PRO*     4.5     2.7    -      -       -      +
    251F  LEU*     3.7    13.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 220 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    249E  ILE      5.1     3.2    +      -       -      -
    250E  PRO*     3.8    33.3    +      -       -      +
    216F  ILE*     3.0    35.4    +      -       -      +
    217F  ARG*     3.6     7.3    -      -       -      +
    219F  CYS*     1.3    74.7    -      -       -      +
    221F  LYS*     1.3    64.4    +      -       -      +
    223F  GLY*     3.0    13.7    +      -       -      -
    224F  GLU*     4.5     1.6    +      -       -      +
    248F  GLN*     2.7    53.5    +      -       -      +
    249F  ILE*     4.8     0.7    -      -       -      -
    250F  PRO*     4.0    23.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 221 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182F  ILE*     6.2     3.4    -      -       +      -
    183F  GLU*     4.1    14.4    +      -       -      +
    186F  TYR*     3.4    60.9    -      -       +      -
    187F  ARG*     5.6     2.2    -      -       -      +
    217F  ARG*     3.0    18.8    +      -       +      +
    218F  PHE*     3.1    15.5    +      -       +      +
    220F  ARG*     1.3    78.4    -      -       -      +
    222F  ILE*     1.3    60.0    +      -       +      +
    223F  GLY      3.3     0.7    +      -       -      -
    224F  GLU*     3.9    15.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 222 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186F  TYR*     3.9    19.3    -      -       +      -
    189F  VAL*     4.2    16.2    -      -       +      -
    204F  VAL*     4.3    20.6    -      -       +      -
    206F  LEU*     5.9     0.2    -      -       +      -
    218F  PHE*     3.0    51.5    +      -       +      +
    219F  CYS*     3.4    18.8    -      -       -      +
    221F  LYS*     1.3    72.0    -      -       -      +
    223F  GLY*     1.3    64.3    +      -       -      +
    224F  GLU      3.2     3.1    -      -       -      -
    225F  LEU*     2.9    30.0    +      -       +      +
    227F  ILE*     3.5    17.3    -      -       +      +
    230F  VAL*     5.7     2.0    -      -       +      -
    251F  LEU*     4.0    18.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 223 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219F  CYS      3.2    10.5    +      -       -      -
    220F  ARG      3.0    15.0    +      -       -      -
    222F  ILE*     1.3    78.2    -      -       -      +
    224F  GLU*     1.3    59.3    +      -       -      +
    225F  LEU      3.1     1.5    +      -       -      -
    226F  ASP*     3.6    10.9    +      -       -      -
    227F  ILE      4.8     1.2    +      -       -      -
    250F  PRO*     4.6     9.9    -      -       -      -
    251F  LEU*     4.3    17.4    -      -       -      +
----------------------------------------------------------
 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