Contacts of the strand formed by residues 87 - 91 (chain A) in PDB entry 2YRY


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 THR 87 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  TRP*     4.5     2.0    -      -       +      -
     76A  VAL*     3.1    48.6    +      -       +      +
     82A  ILE*     3.6    14.6    -      -       +      +
     84A  ARG      3.3    20.0    +      -       -      -
     85A  LYS      3.6     0.5    +      -       -      -
     86A  HIS*     1.3    74.4    -      -       -      +
     88A  PHE*     1.3    74.2    +      -       -      +
     99A  PHE*     4.5     6.7    -      -       +      -
    100A  PHE      3.3    23.8    -      -       -      +
    101A  SER*     3.4    20.7    +      -       -      +
    108A  GLN*     2.6    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  LEU*     3.6    29.6    -      -       +      -
     73A  VAL*     4.5    15.3    -      -       +      -
     74A  ALA      3.9     9.2    -      -       -      +
     75A  ALA*     4.4     0.2    -      -       -      -
     76A  VAL*     4.0     2.7    -      -       -      +
     87A  THR*     1.3    80.3    -      -       -      +
     89A  LYS*     1.3    57.9    +      -       -      +
     99A  PHE      3.5     0.2    -      -       -      -
    100A  PHE*     2.6    90.2    +      +       +      +
    101A  SER      4.0     6.5    -      -       -      -
    102A  ALA*     4.0     8.1    -      -       +      -
    108A  GLN*     3.6    17.5    -      -       +      +
    111A  TRP*     4.1    13.5    -      -       +      -
    112A  ILE*     4.2    26.9    -      -       +      -
    115A  MET*     3.8    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72A  ARG*     4.3     6.5    +      -       -      +
     73A  VAL*     3.8     2.4    -      -       -      -
     74A  ALA*     3.2    50.1    +      -       -      +
     75A  ALA      4.4     7.6    -      -       -      -
     76A  VAL*     3.8    12.8    -      -       +      +
     77A  GLN*     5.0     9.8    -      -       -      +
     88A  PHE*     1.3    73.7    -      -       -      +
     90A  ALA*     1.3    58.4    +      -       -      +
     91A  GLU*     3.0    25.0    +      -       -      +
     97A  THR*     3.9    15.7    -      -       +      -
     98A  TYR      2.8    18.6    -      -       -      +
     99A  PHE*     3.3    40.4    -      -       +      +
    100A  PHE*     5.1     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68A  LEU*     4.4     9.2    -      -       +      -
     71A  PHE*     3.5    22.9    -      -       +      -
     73A  VAL*     3.8    30.1    -      -       +      +
     89A  LYS*     1.3    73.4    -      -       -      +
     91A  GLU*     1.3    59.5    +      -       -      +
     97A  THR*     3.1     3.7    -      -       -      -
     98A  TYR*     2.7    46.9    +      -       +      +
    100A  PHE*     5.0     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  PHE*     3.1     6.5    -      -       -      -
     72A  ARG*     2.9    67.9    +      -       +      +
     89A  LYS*     3.0    27.7    +      -       -      +
     90A  ALA*     1.3    74.2    -      -       -      +
     92A  HIS*     1.3    59.1    +      -       -      +
     93A  ALA*     4.1    17.1    -      -       +      +
     96A  ARG      3.7     4.0    -      -       -      -
     97A  THR*     3.3    25.0    -      -       +      +
----------------------------------------------------------
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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