Contacts of the strand formed by residues 87 - 90 (chain H) in PDB entry 1YIT


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 LYS 87 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35H  LYS*     6.0     2.8    -      -       -      +
     36H  MET      3.5    11.7    +      -       -      +
     38H  ARG      3.1    22.5    +      -       -      +
     39H  LYS*     3.5    16.6    -      -       -      +
     41H  LYS      3.4    20.6    +      -       -      +
     42H  ASP*     3.8    16.2    -      -       -      +
     43H  ALA*     4.3     5.2    -      -       -      +
     46H  TYR*     3.5    30.1    -      -       +      +
     86H  TYR*     1.3    80.2    -      -       -      +
     88H  MET*     1.3    61.9    +      -       -      +
     89H  THR*     5.1     5.1    +      -       -      -
    139H  ALA*     4.3     0.7    -      -       -      -
    140H  TYR*     2.8    49.7    +      -       +      -
----------------------------------------------------------
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Residues in contact with MET 88 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35H  LYS*     3.9     0.3    -      -       -      -
     36H  MET*     2.9    62.5    +      -       +      +
     69H  ARG      4.4     1.8    -      -       -      +
     72H  ALA*     4.1     9.4    -      -       +      -
     73H  ASN*     3.6    39.9    -      -       +      +
     76H  LEU*     4.3    15.9    -      -       +      -
     86H  TYR*     4.1     2.3    -      -       +      -
     87H  LYS*     1.3    74.3    +      -       -      +
     89H  THR*     1.3    74.1    +      -       -      +
    137H  PHE*     4.4    10.5    -      -       +      -
    138H  THR      3.5     7.4    -      -       -      +
    139H  ALA*     3.8    15.9    -      -       +      +
    152H  ALA*     5.5     0.9    -      -       -      -
    153H  PHE*     3.5    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 89 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   10020    G      4.8    15.9    -      -       -      +
     34H  HIS*     3.4     9.2    -      -       +      +
     35H  LYS*     4.4    20.9    -      -       +      +
     36H  MET*     4.5     0.2    -      -       -      -
     87H  LYS*     5.0     5.2    +      -       -      -
     88H  MET*     1.3    80.4    +      -       -      +
     90H  LEU*     1.3    74.9    +      -       -      +
     91H  ARG*     3.6    12.6    +      -       +      +
    137H  PHE*     3.3    11.0    -      -       -      -
    138H  THR*     2.8    40.1    +      -       -      -
    140H  TYR*     4.4    13.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 90 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   10020    G      4.3     1.6    +      -       -      -
     31H  ILE*     4.0    37.2    -      -       +      -
     34H  HIS*     2.9    50.8    +      -       +      +
     36H  MET*     4.3     0.4    -      -       -      +
     65H  LEU*     4.2    14.4    -      -       +      -
     69H  ARG*     4.1    19.1    -      -       +      -
     89H  THR*     1.3    72.0    -      -       -      +
     91H  ARG*     1.3    58.4    +      -       -      +
     92H  LYS      3.8    13.7    -      -       -      +
    136H  LEU*     3.6    35.9    -      -       +      +
    137H  PHE*     3.6    24.0    -      -       +      -
----------------------------------------------------------
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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