Contacts of the strand formed by residues 291 - 300 (chain D) in PDB entry 2Y7Q


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 ALA 291 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258D  GLY      3.1     7.2    +      -       -      -
    259D  TYR*     2.8    51.3    +      -       +      +
    261D  PRO*     4.0    14.5    -      -       +      +
    290D  LEU*     1.3    75.9    -      -       -      +
    292D  SER*     1.3    65.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 292 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256D  VAL      3.2    13.5    -      -       -      -
    257D  SER*     3.6    17.9    -      -       -      -
    258D  GLY      4.1     1.3    -      -       -      -
    259D  TYR*     3.4     8.3    +      -       -      -
    291D  ALA*     1.3    80.4    -      -       -      +
    293D  THR*     1.3    63.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 293 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254D  CYS      3.8     0.2    -      -       -      +
    255D  LEU*     3.9     1.4    -      -       -      -
    256D  VAL*     2.6    57.6    +      -       +      +
    259D  TYR*     3.8    17.5    -      -       -      +
    264D  ILE*     4.0    17.7    -      -       +      -
    266D  ILE*     4.4     6.6    -      -       +      +
    280D  SER*     3.9    18.9    +      -       -      -
    292D  SER*     1.3    77.0    -      -       -      +
    294D  GLN*     1.3    69.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 294 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253D  LEU*     4.1    17.9    -      -       +      -
    254D  CYS      3.2    10.5    -      -       -      +
    255D  LEU*     4.6     9.0    -      -       +      -
    266D  ILE*     4.7     2.6    -      -       -      +
    293D  THR*     1.3    81.8    +      -       -      +
    295D  SER*     1.3    60.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 295 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253D  LEU*     3.8     2.7    -      -       -      +
    254D  CYS*     2.7    44.1    +      -       -      +
    266D  ILE*     3.4    33.7    -      -       -      +
    268D  TRP*     3.2    26.7    +      -       -      -
    276D  ASP*     5.5     1.7    +      -       -      -
    278D  ASP*     6.2     0.3    -      -       -      -
    294D  GLN*     1.3    73.2    -      -       -      +
    296D  GLU*     1.3    60.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 296 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252D  GLN*     3.1    36.5    -      -       +      +
    253D  LEU*     3.2    25.8    -      -       +      +
    268D  TRP*     4.4     4.3    +      -       -      -
    276D  ASP*     5.0     7.8    -      -       -      +
    295D  SER*     1.3    80.2    +      -       -      +
    297D  LEU*     1.3    69.4    +      -       -      +
    298D  THR*     4.3     9.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 297 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251D  ILE      3.8     0.7    -      -       -      +
    252D  GLN*     3.5     0.9    -      -       -      -
    253D  LEU*     2.6    46.7    +      -       +      +
    268D  TRP*     3.4    57.1    -      -       +      +
    275D  MET*     5.8     3.6    -      -       -      -
    276D  ASP*     5.0    12.3    -      -       +      +
    296D  GLU*     1.3    76.7    -      -       -      +
    298D  THR*     1.3    72.0    +      -       -      +
    299D  LEU*     4.6     5.2    -      -       +      -
    310D  TYR*     3.8    28.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 298 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437B  SER*     3.3    32.4    +      -       -      +
    250D  THR*     4.0    20.0    -      -       -      -
    251D  ILE      3.7     3.4    -      -       -      +
    252D  GLN*     4.3    18.8    -      -       +      -
    296D  GLU*     4.3    13.9    +      -       -      +
    297D  LEU*     1.3    83.8    -      -       -      +
    299D  LEU*     1.3    70.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 299 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250D  THR*     3.2     8.0    -      -       -      -
    251D  ILE      2.8    40.0    +      -       -      +
    253D  LEU*     4.1    17.3    -      -       +      -
    297D  LEU*     4.6     8.1    -      -       +      -
    298D  THR*     1.3    83.4    -      -       -      +
    300D  SER*     1.3    67.3    +      -       -      +
    303D  HIS*     3.9    17.7    -      -       +      +
    304D  TRP*     3.7    25.8    -      -       +      -
    310D  TYR*     3.1    62.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 300 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342B  ARG*     4.3    23.6    -      -       -      -
    436B  THR*     6.0     6.1    -      -       -      +
    249D  PRO      4.2     2.2    -      -       -      -
    250D  THR*     4.8     1.3    -      -       -      +
    299D  LEU*     1.3    73.7    -      -       -      +
    301D  GLN*     1.3    61.2    +      -       -      +
    302D  LYS*     3.9     7.2    -      -       -      -
    303D  HIS*     3.1    30.7    +      -       -      +
    304D  TRP*     2.8    28.4    +      -       -      +
----------------------------------------------------------
 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