Contacts of the helix formed by residues 243 - 257 (chain C) in PDB entry 5G04


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 LEU 243 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216C  LYS*     3.8    47.6    -      -       +      +
    238C  TYR*     3.1    43.7    +      -       +      +
    241C  LEU*     3.5    33.4    -      -       +      +
    242C  GLN*     1.3    72.1    -      -       -      +
    244C  ILE*     1.3    56.2    +      -       -      +
    245C  GLU*     3.4     7.2    -      -       +      -
    246C  GLU*     3.4    11.9    +      -       +      +
    247C  ALA      3.1    19.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 244 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238C  TYR      4.8     0.2    -      -       -      -
    239C  THR*     4.9    10.8    -      -       -      +
    242C  GLN*     2.7    29.2    +      -       -      +
    243C  LEU*     1.3    70.6    -      -       -      +
    245C  GLU*     1.3    81.9    +      -       +      +
    247C  ALA*     3.4     7.3    -      -       +      +
    248C  LEU*     2.6    41.1    +      -       +      +
    272C  ALA*     3.9    24.7    -      -       +      +
    275C  ASN*     4.0    20.2    -      -       +      +
    276C  ILE*     3.7    34.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 245 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243C  LEU*     4.7     3.8    -      -       +      -
    244C  ILE*     1.3    94.1    -      -       +      +
    246C  GLU*     1.3    80.8    +      -       +      +
    248C  LEU*     3.5    11.4    +      -       -      +
    249C  GLN*     3.3    21.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 246 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238C  TYR*     3.8    30.1    -      -       +      +
    243C  LEU*     3.4    14.3    +      -       +      +
    244C  ILE      3.2     0.4    -      -       -      -
    245C  GLU*     1.3    92.2    -      -       +      +
    247C  ALA*     1.3    58.2    +      -       -      +
    249C  GLN*     3.4    19.9    +      -       -      +
    250C  LYS*     2.9    27.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 247 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  ALA      3.8    10.5    -      -       -      +
    238C  TYR*     3.3    34.0    -      -       +      -
    239C  THR*     4.1     9.6    -      -       -      +
    243C  LEU      3.1     8.3    +      -       -      +
    244C  ILE*     3.1    14.5    +      -       +      +
    246C  GLU*     1.3    71.8    -      -       -      +
    248C  LEU*     1.3    58.0    +      -       +      +
    250C  LYS*     2.9     5.2    +      -       -      +
    251C  TYR*     2.7    44.7    +      -       +      -
    268C  GLN*     5.8     0.2    -      -       -      +
    272C  ALA*     5.8     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 248 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244C  ILE*     2.6    28.1    +      -       +      +
    245C  GLU*     3.6    11.0    -      -       -      +
    247C  ALA*     1.3    73.0    -      -       +      +
    249C  GLN*     1.3    52.4    +      -       -      +
    251C  TYR*     3.3     7.3    +      -       -      +
    252C  GLN*     2.8    34.9    +      -       -      +
    269C  ILE*     5.9     2.5    -      -       +      -
    272C  ALA*     3.9    23.6    -      -       +      -
    273C  TYR*     3.6    36.8    -      -       +      +
    276C  ILE*     3.3    37.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 249 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245C  GLU      3.3    10.9    +      -       -      +
    246C  GLU*     3.5    24.2    -      -       -      +
    247C  ALA      3.2     0.2    -      -       -      -
    248C  LEU*     1.3    74.4    -      -       -      +
    250C  LYS*     1.3    67.3    +      -       -      +
    252C  GLN*     3.1    23.9    +      -       -      +
    253C  ASN*     3.2    14.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 250 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231C  GLU*     2.2    48.4    +      -       +      +
    234C  LEU*     3.0    31.5    -      -       +      +
    235C  ALA*     2.8    23.5    -      -       +      +
    238C  TYR*     3.4    24.7    -      -       +      -
    246C  GLU      2.9    12.3    +      -       -      +
    247C  ALA*     2.9     9.2    +      -       -      +
    249C  GLN*     1.3    77.6    -      -       -      +
    251C  TYR*     1.3    60.8    -      -       -      +
    253C  ASN*     3.5    21.8    +      -       +      +
    254C  LEU*     3.2    16.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 251 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232C  PHE*     4.1     7.2    +      +       -      -
    235C  ALA*     3.4    29.2    -      -       +      -
    236C  HIS*     3.7    13.0    +      -       -      +
    247C  ALA*     2.7    33.6    +      -       +      +
    248C  LEU*     3.7     6.3    -      -       -      +
    250C  LYS*     1.3    70.7    -      -       -      +
    252C  GLN*     1.3    64.1    +      -       -      +
    254C  LEU*     3.1    33.5    +      -       +      +
    255C  ILE*     3.2    19.8    +      -       +      +
    264C  TYR*     3.6    23.3    +      +       -      -
    265C  ILE*     4.5    12.3    -      -       +      -
    268C  GLN*     3.0    55.9    +      -       +      +
    269C  ILE*     3.3    27.4    -      -       +      -
    272C  ALA*     5.8     1.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 252 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248C  LEU      2.8    16.9    +      -       -      +
    249C  GLN*     3.1    22.6    +      -       -      +
    251C  TYR*     1.3    74.0    -      -       -      +
    253C  ASN*     1.3    61.5    +      -       -      +
    255C  ILE*     3.6    28.6    +      -       -      +
    256C  ASP*     3.2    26.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 253 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  PHE*     3.9    29.2    -      -       -      -
    231C  GLU*     5.0    10.3    -      -       -      +
    249C  GLN*     3.2    13.4    +      -       -      +
    250C  LYS*     3.5    16.4    +      -       +      +
    252C  GLN*     1.3    76.8    -      -       -      +
    254C  LEU*     1.3    57.3    +      -       -      +
    256C  ASP*     3.3     8.4    +      -       -      +
    257C  VAL*     3.0    26.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 254 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  PHE*     4.6     8.7    -      -       +      -
    231C  GLU*     4.4    12.1    -      -       +      +
    232C  PHE*     3.6    49.4    -      -       +      +
    235C  ALA*     4.5     8.3    -      -       +      -
    250C  LYS*     3.2    22.7    -      -       +      +
    251C  TYR*     3.1    39.4    +      -       +      +
    253C  ASN*     1.3    75.4    -      -       +      +
    255C  ILE*     1.3    64.5    +      -       -      +
    257C  VAL*     3.3    14.2    -      -       +      +
    259C  PHE*     3.2    28.6    +      -       +      +
    265C  ILE*     4.2    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 255 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248C  LEU      5.7     0.2    -      -       -      +
    251C  TYR      3.2    20.3    +      -       -      +
    252C  GLN*     3.8    33.2    -      -       -      +
    253C  ASN      3.5     0.2    -      -       -      -
    254C  LEU*     1.3    74.9    -      -       -      +
    256C  ASP*     1.3    60.0    +      -       -      +
    258C  GLY*     3.4     8.3    +      -       -      -
    259C  PHE      4.7     0.4    -      -       -      -
    260C  SER*     2.3    49.3    +      -       -      +
    265C  ILE*     4.1    17.9    -      -       +      +
    269C  ILE*     4.3    20.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 256 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252C  GLN*     3.2    22.1    +      -       -      +
    253C  ASN*     3.5     9.0    -      -       -      +
    254C  LEU      3.3     0.4    -      -       -      -
    255C  ILE*     1.3    76.6    -      -       -      +
    257C  VAL*     1.3    57.7    +      -       -      +
    258C  GLY      3.3     1.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 257 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  PHE*     3.5    51.6    -      -       +      -
     29C  LEU*     3.2    33.3    -      -       +      +
    253C  ASN*     3.0    11.8    +      -       -      +
    254C  LEU*     3.3    24.7    -      -       +      +
    256C  ASP*     1.3    76.3    -      -       -      +
    258C  GLY*     1.3    57.0    +      -       -      +
    259C  PHE*     3.7    20.7    -      -       +      -
----------------------------------------------------------
 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