Contacts of the strand formed by residues 236 - 238 (chain D) in PDB entry 5D0A


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 ARG 236 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95D  ILE*     3.6    17.9    -      -       +      +
    199D  PRO*     4.0    12.5    -      -       -      +
    215D  ILE*     3.7    19.6    -      -       -      +
    219D  THR*     4.6     2.9    -      -       +      -
    232D  LYS      3.2    19.6    +      -       -      -
    233D  ILE*     3.2    55.3    +      -       +      +
    234D  GLY*     3.4     3.1    -      -       -      +
    235D  ASN*     1.3    80.0    -      -       -      +
    237D  LEU*     1.3    62.8    +      -       -      +
    239D  GLY      3.6    26.0    -      -       -      +
    240D  CYS*     3.5    21.4    -      -       -      +
    241D  ASP      4.9     1.2    -      -       -      +
    242D  THR*     2.9    26.5    +      -       -      +
    303D  ASN*     3.8     7.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 237 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94D  GLY*     3.8    15.7    -      -       -      -
     95D  ILE      2.9    18.2    +      -       -      +
     96D  PHE*     3.8    19.5    -      -       +      -
    219D  THR*     4.1     1.2    -      -       -      +
    235D  ASN      4.5     0.9    -      -       -      +
    236D  ARG*     1.3    75.3    -      -       -      +
    238D  TYR*     1.3    62.9    +      -       -      +
    270D  PRO*     3.5    33.0    -      -       +      -
    272D  LEU*     4.0     9.0    -      -       +      -
    275D  LEU*     3.7    13.5    -      -       +      -
    300D  ILE*     3.5    20.5    -      -       +      +
    303D  ASN*     2.8    30.5    +      -       -      +
    304D  ALA*     3.6    38.1    -      -       +      +
    307D  ALA*     5.0     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 238 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95D  ILE      3.7     2.1    +      -       -      +
     96D  PHE*     3.5    21.5    -      -       +      -
     97D  CYS*     2.9    38.4    +      -       -      +
     99D  ALA*     5.6     0.7    -      -       +      -
    100D  SER*     3.8    20.9    -      -       -      -
    219D  THR*     3.7     6.5    -      -       -      -
    220D  GLN*     3.4    39.3    +      -       +      -
    236D  ARG      3.6     0.8    -      -       -      -
    237D  LEU*     1.3    82.8    -      -       -      +
    239D  GLY*     1.3    67.3    +      -       -      +
    291D  SER*     3.7     8.2    +      -       -      -
    292D  GLY*     3.4    39.9    -      -       -      -
    294D  TRP*     3.3    27.2    +      +       -      -
    295D  ARG*     5.6     2.7    -      -       +      -
    299D  PRO*     6.5     0.4    -      -       +      -
    300D  ILE*     4.0     6.7    -      -       +      -
    503D  B12      6.4     0.7    -      -       +      -
    504D  GOL      3.6     6.6    +      -       -      -
----------------------------------------------------------
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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