Contacts of the strand formed by residues 236 - 244 (chain A) in PDB entry 2V9R


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 GLY 236 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  LYS*     4.2     0.7    -      -       -      -
    207A  ASP*     3.5    13.5    -      -       -      -
    234A  ASP      3.3     2.4    +      -       -      -
    235A  ALA*     1.3    74.8    -      -       -      +
    237A  LYS*     1.3    60.8    +      -       -      -
    238A  TYR*     3.3    10.6    -      -       -      -
    254A  ALA      3.3     2.4    -      -       -      +
    255A  GLU*     3.6    14.4    +      -       -      +
    256A  LEU      3.0    32.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 237 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205A  LYS      3.4     1.6    -      -       -      +
    206A  LYS*     3.2     5.2    -      -       -      +
    207A  ASP*     2.9    47.2    +      -       -      +
    236A  GLY*     1.3    70.5    -      -       -      -
    238A  TYR*     1.3    61.8    +      -       -      +
    239A  VAL*     4.1     2.6    +      -       +      +
    253A  VAL*     3.4    27.6    -      -       +      -
    254A  ALA      3.3     4.9    -      -       -      -
    255A  GLU*     3.1    31.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 238 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176A  PRO*     4.7     2.2    -      -       -      +
    189A  MET*     3.6    26.9    -      -       +      -
    204A  TRP*     4.9     6.1    -      +       +      -
    205A  LYS      3.3     3.1    -      -       -      -
    206A  LYS*     3.6    25.6    -      -       +      +
    211A  LEU*     4.2    20.9    -      -       +      -
    225A  LEU*     4.0    25.4    -      -       +      -
    227A  ILE*     4.0    10.5    -      -       +      +
    234A  ASP*     2.5    38.5    +      -       -      +
    236A  GLY      3.3    22.2    -      -       -      -
    237A  LYS*     1.3    71.5    -      -       -      +
    239A  VAL*     1.3    64.4    +      -       -      +
    252A  GLU      4.0     0.9    -      -       -      +
    253A  VAL*     3.3     1.6    -      -       -      -
    254A  ALA*     2.5    46.8    +      -       -      +
    256A  LEU*     3.6    25.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 239 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176A  PRO*     4.8     0.7    -      -       -      -
    204A  TRP*     3.5     8.5    -      -       -      -
    205A  LYS*     2.9    53.3    +      -       +      +
    237A  LYS*     5.0     2.5    -      -       +      +
    238A  TYR*     1.3    79.9    -      -       -      +
    240A  CYS*     1.3    60.3    +      -       -      +
    241A  VAL*     3.9    16.2    -      -       +      -
    250A  GLU*     4.2    20.9    -      -       +      +
    251A  SER*     3.5    21.5    -      -       -      +
    253A  VAL*     3.6    28.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 240 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  PHE*     3.3    12.3    -      -       +      -
    176A  PRO*     3.9     9.1    -      -       +      +
    191A  CYS*     2.0    53.6    -      -       +      -
    202A  ILE*     3.5    23.3    -      -       -      -
    203A  SER      3.6     3.8    -      -       -      -
    204A  TRP*     3.9    13.7    -      -       +      -
    239A  VAL*     1.3    72.4    -      -       -      +
    241A  VAL*     1.3    62.6    +      -       -      +
    251A  SER*     2.9    32.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 241 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  PHE*     3.7     3.3    -      -       -      -
    201A  THR      3.7     0.3    -      -       -      +
    202A  ILE*     3.5    10.9    -      -       -      +
    203A  SER*     2.7    55.4    +      -       -      +
    204A  TRP      5.0     0.4    -      -       -      -
    205A  LYS*     4.5    18.4    -      -       +      -
    239A  VAL*     3.9    14.1    -      -       +      +
    240A  CYS*     1.3    77.3    -      -       -      +
    242A  GLY*     1.3    63.5    +      -       -      +
    243A  THR*     3.8    13.4    +      -       -      +
    248A  GLU*     4.0    22.4    -      -       +      +
    249A  ARG      3.5     8.7    -      -       -      +
    250A  GLU*     3.9    23.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168A  LEU*     4.4     4.2    -      -       -      +
    172A  PHE*     3.3    15.5    -      -       -      -
    193A  PRO*     4.5    10.8    -      -       -      -
    194A  PRO*     5.4     0.9    -      -       -      -
    200A  PRO*     4.6     3.6    -      -       -      -
    201A  THR      3.7     4.5    -      -       -      -
    241A  VAL*     1.3    73.0    -      -       -      +
    243A  THR*     1.3    64.6    +      -       -      -
    247A  GLY      3.6     1.4    -      -       -      +
    248A  GLU*     3.4     2.9    -      -       -      -
    249A  ARG*     2.8    44.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199A  GLU      4.2     0.3    -      -       -      +
    200A  PRO*     3.3     7.6    -      -       -      +
    201A  THR*     3.0    48.7    +      -       -      +
    202A  ILE      6.3     0.2    -      -       -      -
    203A  SER*     4.7     4.4    +      -       -      -
    241A  VAL*     3.8    14.9    -      -       -      +
    242A  GLY*     1.3    79.2    +      -       -      -
    244A  ASN*     1.3    69.7    +      -       -      +
    247A  GLY      3.5     7.4    -      -       -      +
    248A  GLU*     4.3     9.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  ILE      3.1    26.1    +      -       -      -
    168A  LEU*     3.1    24.2    -      -       -      +
    196A  GLY*     4.2     2.4    -      -       -      -
    197A  HIS      3.6     9.9    +      -       -      +
    198A  PRO*     2.9    36.4    +      -       +      +
    199A  GLU      4.4     1.8    -      -       -      +
    200A  PRO*     4.3     4.8    -      -       +      +
    243A  THR*     1.3    83.4    -      -       -      +
    245A  MET*     1.3    61.8    +      -       -      +
    246A  VAL*     2.8    22.8    +      -       -      +
    247A  GLY*     3.1    15.5    +      -       -      +
----------------------------------------------------------
 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