Contacts of the helix formed by residues 223 - 239 (chain C) in PDB entry 5BOU


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 SER 223 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221C  ALA      3.8     1.6    +      -       -      -
    222C  LEU*     1.3    73.2    -      -       -      +
    224C  SER*     1.3    65.6    +      -       -      +
    225C  GLU*     3.8    13.0    +      -       -      +
    226C  GLU*     2.9    38.8    +      -       -      +
    227C  ILE*     3.2    28.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 224 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205C  ALA      5.4    10.0    -      -       -      +
    206C  LYS*     5.0    14.3    -      -       -      +
    223C  SER*     1.3    75.1    -      -       -      +
    225C  GLU*     1.3    61.8    +      -       -      +
    227C  ILE*     3.4     7.4    +      -       -      +
    228C  ASN*     2.8    35.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 225 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223C  SER*     3.8    11.1    +      -       -      +
    224C  SER*     1.3    86.1    +      -       -      +
    226C  GLU*     1.3    67.2    +      -       +      +
    228C  ASN*     3.2     9.5    +      -       -      +
    229C  GLN*     3.0    38.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 226 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221C  ALA      5.2     0.7    -      -       -      +
    222C  LEU*     3.6    28.2    -      -       +      +
    223C  SER*     2.9    35.7    +      -       -      +
    225C  GLU*     1.3    76.0    -      -       +      +
    227C  ILE*     1.3    62.9    +      -       -      +
    229C  GLN*     3.4    22.0    +      -       -      +
    230C  TYR*     3.2    23.8    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 227 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194C  VAL*     4.6     9.4    -      -       +      -
    204C  GLY      5.0     3.6    -      -       -      +
    205C  ALA      5.3     2.9    -      -       -      +
    208C  ILE*     3.5    44.6    -      -       +      +
    209C  GLU*     4.3     0.9    -      -       -      -
    210C  ILE*     3.9    25.1    -      -       +      +
    222C  LEU*     3.8    29.6    -      -       +      +
    223C  SER      3.2    19.6    +      -       -      +
    224C  SER*     3.8     6.3    -      -       -      +
    226C  GLU*     1.3    73.8    -      -       -      +
    228C  ASN*     1.3    67.0    +      -       -      +
    230C  TYR*     3.0    12.6    +      -       +      +
    231C  VAL*     3.0    30.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 228 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204C  GLY      4.4    10.0    +      -       -      +
    205C  ALA*     5.5     2.4    -      -       -      -
    224C  SER      2.8    19.6    +      -       -      +
    225C  GLU*     3.2    12.3    +      -       -      +
    227C  ILE*     1.3    76.9    -      -       -      +
    229C  GLN*     1.3    52.9    +      -       +      +
    231C  VAL*     3.4    15.3    +      -       -      +
    232C  THR*     2.7    43.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 229 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225C  GLU*     3.0    31.2    +      -       -      +
    226C  GLU*     3.6    16.5    -      -       -      +
    227C  ILE      3.2     0.2    -      -       -      -
    228C  ASN*     1.3    74.8    -      -       -      +
    230C  TYR*     1.3    64.3    +      -       +      +
    232C  THR*     3.6     7.0    +      -       -      -
    233C  GLN*     3.1    25.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 230 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186C  VAL*     4.8     1.6    -      -       -      +
    187C  GLU*     3.5    55.7    -      -       +      +
    190C  VAL*     3.6    27.2    -      -       +      +
    191C  LYS*     3.8    29.2    -      -       +      -
    194C  VAL*     4.3    15.9    -      -       +      -
    222C  LEU*     4.2    10.9    -      -       +      +
    226C  GLU*     3.2    25.1    -      -       +      -
    227C  ILE*     3.0    10.8    +      -       -      +
    229C  GLN*     1.3    77.6    -      -       +      +
    231C  VAL*     1.3    64.1    +      -       -      +
    233C  GLN*     3.4     7.8    +      -       -      +
    234C  ILE*     3.0    33.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 231 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194C  VAL*     4.1    17.0    -      -       +      -
    198C  LEU*     4.5    13.4    -      -       +      +
    204C  GLY*     3.6    39.5    -      -       -      +
    208C  ILE*     4.8     2.0    -      -       +      -
    227C  ILE*     3.0    25.3    +      -       +      +
    228C  ASN*     3.6    14.6    -      -       -      +
    229C  GLN      3.4     0.2    -      -       -      -
    230C  TYR*     1.3    76.6    -      -       -      +
    232C  THR*     1.3    62.9    +      -       -      +
    234C  ILE*     3.7     8.3    +      -       -      +
    235C  GLU*     3.2    35.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 232 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228C  ASN*     2.7    30.0    +      -       -      -
    229C  GLN*     3.7     7.9    -      -       -      -
    230C  TYR      3.2     0.2    -      -       -      -
    231C  VAL*     1.3    79.2    -      -       -      +
    233C  GLN*     1.3    61.8    +      -       -      +
    234C  ILE      3.4     0.2    +      -       -      -
    235C  GLU*     3.5     4.4    +      -       -      +
    236C  GLN*     3.3    48.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 233 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187C  GLU*     5.6     4.2    +      -       -      -
    191C  LYS*     3.9    17.7    +      -       -      +
    229C  GLN      3.1    17.1    +      -       -      +
    230C  TYR*     4.0     7.8    -      -       -      +
    232C  THR*     1.3    79.3    -      -       -      +
    234C  ILE*     1.3    62.9    +      -       +      +
    236C  GLN*     3.6     9.1    +      -       +      +
    237C  GLU*     3.3    44.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 234 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191C  LYS*     4.0    26.0    -      -       +      +
    194C  VAL*     3.7    28.7    -      -       +      -
    195C  ARG*     3.7    35.2    -      -       +      +
    198C  LEU*     3.9    18.6    -      -       +      -
    230C  TYR*     3.0    24.0    +      -       +      +
    231C  VAL      3.9     4.5    -      -       -      +
    232C  THR      3.3     0.2    -      -       -      -
    233C  GLN*     1.3    79.3    -      -       +      +
    235C  GLU*     1.3    61.5    +      -       +      +
    237C  GLU*     3.5     8.5    +      -       -      +
    238C  LYS*     3.1    28.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 235 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198C  LEU*     5.4     9.6    -      -       +      +
    231C  VAL*     3.2    32.1    +      -       -      +
    232C  THR*     3.5     6.1    +      -       -      +
    233C  GLN      3.4     0.2    -      -       -      -
    234C  ILE*     1.3    82.6    -      -       +      +
    236C  GLN*     1.3    61.1    +      -       +      +
    238C  LYS*     3.2    16.8    +      -       +      +
    239C  GLN*     3.0    40.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 236 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232C  THR*     3.3    40.0    +      -       +      +
    233C  GLN*     4.0     8.6    -      -       -      +
    234C  ILE      3.4     0.2    -      -       -      -
    235C  GLU*     1.3    77.0    -      -       +      +
    237C  GLU*     1.3    59.8    +      -       +      +
    238C  LYS      3.7     0.2    +      -       -      -
    239C  GLN*     3.8    23.4    +      -       -      +
    240C  GLU*     3.3    13.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 237 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191C  LYS*     3.3    25.8    +      -       -      -
    233C  GLN*     3.3    41.9    +      -       +      +
    234C  ILE*     3.7     8.1    -      -       -      +
    235C  GLU      3.3     0.4    -      -       -      -
    236C  GLN*     1.3    76.7    -      -       +      +
    238C  LYS*     1.3    62.0    +      -       -      +
    239C  GLN      3.3     0.2    -      -       -      -
    240C  GLU*     3.2    23.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 238 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199C  GLU*     5.9     2.6    +      -       -      -
    234C  ILE*     3.1    19.8    +      -       +      +
    235C  GLU*     3.2    23.3    +      -       +      +
    237C  GLU*     1.3    74.6    -      -       -      +
    239C  GLN*     1.3    50.7    +      -       +      +
    240C  GLU*     2.8    22.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 239 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  GLU*     3.0    28.2    +      -       -      +
    236C  GLN*     4.0    18.0    -      -       -      +
    237C  GLU      3.3     0.8    -      -       -      -
    238C  LYS*     1.3    72.2    -      -       +      +
    240C  GLU*     1.3    73.8    +      -       -      +
----------------------------------------------------------
 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