Contacts of the strand formed by residues 243 - 249 (chain P) in PDB entry 2D2C


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 243 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32P  ALA      3.6    21.1    +      -       -      +
     33P  GLU*     4.5     2.1    -      -       -      +
     34P  VAL*     3.5    30.3    +      -       +      +
     35P  GLU*     3.6    20.6    -      -       -      +
    150P  HIS*     3.9     0.7    -      -       -      -
    151P  LEU*     3.2    27.7    +      -       -      +
    242P  GLN*     1.3    75.9    -      -       -      +
    244P  ASP*     1.3    77.9    +      -       -      +
      2S  MET*     3.5    24.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 244 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73O  LEU*     2.9    36.4    -      -       -      +
     74O  GLU*     4.3    14.5    -      -       +      +
     14P  ARG*     4.5     1.8    +      -       -      -
    149P  ILE      3.3     5.6    -      -       -      -
    150P  HIS*     3.6    32.5    -      -       +      +
    242P  GLN*     3.9    16.5    -      -       -      +
    243P  ASP*     1.3    94.1    +      -       -      +
    245P  THR*     1.3    67.2    +      -       -      +
      2S  MET*     4.6    10.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 245 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1309O  BNT      5.3     0.9    -      -       -      +
     34P  VAL*     3.8    27.3    +      -       +      +
     35P  GLU*     4.6    11.3    +      -       -      +
     36P  VAL*     5.4     6.9    +      -       +      +
    148P  ALA*     3.5     5.5    -      -       -      +
    149P  ILE*     2.6    58.3    +      -       +      +
    150P  HIS*     4.6     1.2    +      -       -      -
    244P  ASP*     1.3    78.8    -      -       -      +
    246P  GLU*     1.3    96.8    +      -       -      +
      2S  MET*     6.1     2.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 246 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58O  ASP*     5.4     1.4    -      -       -      +
   1309O  BNT      3.8    16.8    -      -       +      -
     36P  VAL*     5.5     1.9    -      -       -      +
     37P  PRO      5.1     1.6    -      -       -      +
     38P  GLN*     4.8     2.6    -      -       -      +
    146P  LYS*     3.6    34.3    -      -       +      +
    147P  TYR      3.0    18.8    -      -       -      +
    149P  ILE*     4.0     5.6    -      -       -      -
    245P  THR*     1.3   108.5    +      -       -      +
    247P  ILE*     1.3    58.0    +      -       -      +
    248P  VAL*     5.6     0.3    -      -       -      +
      1R  MET*     5.3     7.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 247 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36P  VAL*     3.9    15.5    -      -       +      -
     37P  PRO*     3.0    28.7    -      -       +      +
     38P  GLN      3.1     6.7    -      -       -      +
     40P  VAL*     3.0    46.9    -      -       +      -
     46P  PHE*     4.3     6.1    -      -       +      -
     79P  PRO*     4.5    18.6    -      -       +      -
     82P  PHE*     4.7     7.9    -      -       +      -
    145P  GLY      3.8     1.7    -      -       -      +
    146P  LYS*     3.5     1.3    -      -       -      -
    147P  TYR*     3.2    26.4    +      -       +      +
    149P  ILE*     3.8    18.7    -      -       +      +
    246P  GLU*     1.3    73.3    -      -       -      +
    248P  VAL*     1.3    68.0    +      -       -      +
    249P  LEU*     4.6     1.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 248 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57O  LEU      4.7     0.2    -      -       -      +
     58O  ASP*     4.8     2.2    -      -       -      +
     59O  PRO*     3.3    33.2    -      -       +      -
     38P  GLN*     3.1    26.8    +      -       -      +
     39P  SER*     3.2     4.6    -      -       -      -
     40P  VAL*     2.9    29.8    +      -       -      +
    145P  GLY*     3.8     5.6    -      -       -      +
    146P  LYS*     3.3    33.2    -      -       +      -
    247P  ILE*     1.3    80.3    -      -       -      +
    249P  LEU*     1.3    77.4    -      -       -      +
    250P  GLN*     4.0    13.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 249 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40P  VAL*     3.3    10.1    -      -       -      +
     42P  PRO*     5.5     6.1    -      -       +      -
     82P  PHE*     3.5    37.5    -      -       +      -
    133P  SER*     4.6     6.7    -      -       -      +
    134P  PRO*     5.0     6.3    -      -       +      +
    136P  PRO*     5.3     6.7    -      -       +      -
    142P  ILE*     5.0     9.4    -      -       +      -
    143P  HIS      4.1    12.8    -      -       -      +
    144P  PHE*     3.4    42.7    -      -       +      +
    145P  GLY      2.8    29.3    +      -       -      +
    147P  TYR*     4.0    11.2    -      -       +      -
    247P  ILE*     4.6     3.4    -      -       +      +
    248P  VAL*     1.3    89.2    -      -       -      +
    250P  GLN*     1.3    63.3    +      -       -      +
----------------------------------------------------------
 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