Contacts of the helix formed by residues 241 - 255 (chain C) in PDB entry 4BGG


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 ASP 241 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218C  ARG      5.6     0.2    -      -       -      +
    219C  TYR*     4.2    22.9    -      -       +      +
    237C  PHE*     3.7    14.0    -      -       +      -
    238C  SER*     3.0    14.6    +      -       -      +
    240C  ARG*     1.3    80.4    -      -       +      +
    242C  GLU*     1.3    62.8    +      -       -      +
    243C  LYS      3.3     2.2    -      -       -      -
    244C  SER*     3.1    24.7    +      -       -      +
    245C  TRP      3.3     8.0    +      -       -      -
    373C  ASN*     6.0     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 242 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238C  SER      3.6     2.4    +      -       -      -
    239C  SER*     4.1    11.7    -      -       -      +
    240C  ARG      3.6     3.0    +      -       -      -
    241C  ASP*     1.3    75.9    -      -       -      +
    243C  LYS*     1.3    62.3    +      -       -      +
    245C  TRP*     3.2     8.8    +      -       -      +
    246C  PHE*     3.0    24.1    +      -       -      +
    279C  LEU*     4.1    27.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 243 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240C  ARG      5.4     0.4    +      -       -      -
    241C  ASP      3.3     1.0    -      -       -      -
    242C  GLU*     1.3    78.7    -      -       -      +
    244C  SER*     1.3    56.0    +      -       -      +
    246C  PHE*     3.7     7.3    -      -       -      +
    247C  ARG*     3.0    29.5    +      -       -      +
    372C  ASN      4.9     4.5    -      -       -      +
    373C  ASN*     4.0    27.6    +      -       +      +
    374C  PRO*     4.9     6.5    -      -       +      -
    250D  GLU*     5.1     8.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 244 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  LYS*     6.0     0.7    -      -       -      -
    237C  PHE*     4.0    13.5    -      -       -      -
    241C  ASP*     3.1    20.5    +      -       -      +
    243C  LYS*     1.3    73.5    -      -       -      +
    245C  TRP*     1.3    65.4    +      -       -      +
    247C  ARG      3.4     0.3    +      -       -      -
    248C  GLU*     3.0    27.5    +      -       -      +
    356C  GLY*     3.8    21.6    +      -       -      -
    357C  LEU*     5.2     1.4    -      -       -      +
    373C  ASN*     3.0    25.5    +      -       -      +
    375C  ARG*     4.6     8.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 245 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237C  PHE*     3.6    47.7    -      +       +      -
    241C  ASP      3.3     3.3    +      -       -      +
    242C  GLU*     3.2    11.3    +      -       +      +
    244C  SER*     1.3    79.3    -      -       -      +
    246C  PHE*     1.3   104.8    +      +       +      +
    248C  GLU*     3.9     1.3    -      -       -      +
    249C  THR*     2.9    48.6    +      -       +      -
    268C  SER*     3.0    29.5    +      -       -      -
    269C  ASP      4.1    16.2    -      -       -      -
    270C  MET*     5.2     5.4    -      -       +      -
    279C  LEU*     3.6    34.8    -      -       +      -
    280C  TRP      3.1    18.5    +      -       -      +
    281C  LEU*     4.4     2.0    -      -       +      -
    245D  TRP*     6.3     3.4    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 246 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242C  GLU      3.0    15.0    +      -       -      +
    243C  LYS*     3.7     6.3    -      -       -      +
    245C  TRP*     1.3   106.6    -      +       -      +
    247C  ARG*     1.3    65.0    +      -       -      +
    249C  THR*     3.8     3.0    -      -       -      -
    250C  GLU*     3.0    31.7    +      -       -      +
    245D  TRP*     5.1     3.6    -      +       -      -
    246D  PHE*     3.6    53.8    -      +       +      -
    249D  THR*     4.2    19.7    -      -       +      -
    250D  GLU*     3.9    38.1    -      -       +      +
    253D  ASN*     6.2     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 247 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    243C  LYS      3.0    18.7    +      -       -      +
    244C  SER      3.9     0.4    -      -       -      +
    246C  PHE*     1.3    76.0    -      -       -      +
    248C  GLU*     1.3    63.8    +      -       -      +
    250C  GLU*     3.4     6.4    +      -       -      +
    251C  LEU*     3.1    28.9    +      -       +      +
    355C  LEU      4.7     3.4    -      -       -      +
    356C  GLY      3.8    20.9    -      -       -      +
    358C  ALA      5.4     6.7    -      -       -      +
    373C  ASN*     5.3     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 248 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  LYS*     4.7     0.9    +      -       -      -
    237C  PHE*     3.7    20.8    -      -       +      -
    244C  SER      3.0    14.6    +      -       -      +
    245C  TRP*     3.9     3.4    -      -       -      +
    247C  ARG*     1.3    76.2    -      -       -      +
    249C  THR*     1.3    64.0    +      -       -      +
    251C  LEU*     3.4     6.0    +      -       -      +
    252C  TYR*     3.1    50.5    +      -       +      -
    281C  LEU*     3.7    21.1    -      -       +      +
    354C  ASP*     3.4    14.8    +      -       -      +
    355C  LEU*     3.0    36.7    +      -       +      +
    356C  GLY*     3.7    13.3    +      -       -      +
   1000C  844      3.4    12.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 249 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    245C  TRP*     2.9    39.8    +      -       +      -
    246C  PHE*     3.8     4.9    -      -       -      -
    248C  GLU*     1.3    76.7    -      -       -      +
    250C  GLU*     1.3    57.7    +      -       -      +
    252C  TYR*     3.1     7.2    +      -       -      +
    253C  ASN*     2.8    46.0    +      -       -      +
    265C  PHE*     5.2     2.0    -      -       -      -
    268C  SER*     2.8    32.9    +      -       -      +
    281C  LEU*     4.7     4.4    -      -       -      +
    245D  TRP*     6.2     0.7    -      -       +      -
    246D  PHE*     4.3    13.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 250 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246C  PHE*     3.0    24.8    +      -       -      +
    247C  ARG*     3.9     5.3    -      -       -      +
    248C  GLU      3.4     0.2    -      -       -      -
    249C  THR*     1.3    74.8    -      -       -      +
    251C  LEU*     1.3    59.8    +      -       -      +
    254C  THR*     2.8    42.7    +      -       -      -
    255C  VAL*     4.7     0.5    -      -       -      +
    360C  MET*     5.1    10.6    -      -       -      +
    243D  LYS*     3.2    28.9    -      -       -      +
    246D  PHE*     3.2    55.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 251 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247C  ARG*     3.1    16.4    +      -       +      +
    248C  GLU      3.7     7.2    -      -       -      +
    250C  GLU*     1.3    76.5    -      -       -      +
    252C  TYR*     1.3    62.8    +      -       -      +
    255C  VAL*     3.1    38.1    +      -       +      +
    256C  MET      3.5     2.8    +      -       -      -
    257C  LEU*     4.0    12.6    -      -       +      +
    332C  ILE*     4.0    23.3    -      -       +      -
    355C  LEU*     4.1    24.9    -      -       +      +
    358C  ALA*     3.6    32.1    -      -       +      +
    360C  MET*     3.5    38.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 252 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248C  GLU*     3.1    48.1    +      -       +      +
    249C  THR      3.7     2.9    -      -       -      +
    251C  LEU*     1.3    80.8    -      -       +      +
    253C  ASN*     1.3    61.5    +      -       -      +
    256C  MET*     3.5    18.0    +      -       -      -
    257C  LEU*     3.9    28.9    +      -       +      +
    262C  ILE*     4.1     8.2    -      -       +      +
    263C  LEU*     2.8    40.5    +      -       -      +
    264C  GLY*     5.3     0.2    -      -       -      -
    265C  PHE*     3.4    59.0    -      +       +      -
    281C  LEU*     4.4     9.0    -      -       +      -
    283C  THR*     5.4     2.0    -      -       +      -
    352C  ILE      5.1     0.9    +      -       -      -
    353C  ALA*     5.5     0.2    -      -       -      -
    354C  ASP      5.4     1.9    +      -       -      -
    355C  LEU*     4.0    23.1    -      -       +      +
----------------------------------------------------------
 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
----------------------------------------------------------
    249C  THR*     2.8    40.4    +      -       -      +
    252C  TYR*     1.3    74.6    -      -       -      +
    254C  THR*     1.3    59.0    +      -       -      +
    256C  MET*     4.4     3.7    +      -       -      +
    265C  PHE*     3.6    27.3    -      -       -      -
    268C  SER*     4.6     1.7    -      -       -      -
    242D  GLU*     5.6     1.6    -      -       -      +
    246D  PHE*     4.2    17.0    -      -       +      -
    279D  LEU*     6.3     1.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 254 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250C  GLU*     2.8    36.6    +      -       -      -
    253C  ASN*     1.3    74.2    -      -       -      +
    255C  VAL*     1.3    69.0    +      -       -      +
    256C  MET*     5.0     1.3    -      -       -      +
    242D  GLU*     4.4    14.8    -      -       -      -
    243D  LYS*     5.0    11.9    -      -       -      -
    246D  PHE*     4.3    11.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 255 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250C  GLU      5.6     0.2    -      -       -      -
    251C  LEU*     3.1    34.0    +      -       +      +
    254C  THR*     1.3    83.0    -      -       -      +
    256C  MET*     1.3    70.3    +      -       -      +
    257C  LEU*     4.2    18.4    -      -       +      +
    328C  GLY      3.7    15.6    -      -       -      +
    329C  LYS*     4.1    14.7    -      -       +      +
    330C  PRO*     3.8    33.4    -      -       +      -
    332C  ILE*     4.7     7.6    -      -       +      -
    360C  MET*     4.9     5.2    -      -       -      -
    243D  LYS*     5.5     7.6    -      -       -      +
----------------------------------------------------------
 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