Contacts of the strand formed by residues 157 - 159 (chain R) in PDB entry 3SDI


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 PHE 157 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110R  GLU*     4.0    26.9    -      -       +      -
    113R  THR*     3.7    17.7    -      -       +      -
    114R  GLN*     3.4    45.3    -      -       +      -
    117R  CYS*     3.6    27.4    -      -       +      -
    149R  PHE*     3.7    24.7    -      +       +      -
    150R  HIS      3.1    13.2    -      -       -      +
    151R  ALA*     4.3     0.2    -      -       -      -
    155R  GLY      4.5     2.7    -      -       -      -
    156R  THR*     1.3    76.7    -      -       -      +
    158R  TYR*     1.3    70.0    +      -       -      +
    159R  ARG      5.3     0.2    -      -       -      -
     64S  GLN*     4.0    13.9    -      -       -      +
     65S  LYS*     4.6    11.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 158 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149R  PHE*     3.2     7.5    -      -       -      -
    150R  HIS*     2.7    37.3    +      -       +      +
    152R  GLU*     6.0     6.3    -      -       +      -
    156R  THR*     4.2    11.9    -      -       +      -
    157R  PHE*     1.3    80.6    -      -       -      +
    159R  ARG*     1.3    59.9    +      -       -      +
    160R  TYR*     3.5    24.3    -      +       +      -
     53S  ARG*     4.0    15.6    +      -       -      +
     54S  ASN      4.9     0.2    -      -       -      -
     55S  ALA*     4.0    28.0    +      -       +      +
     59S  SER*     4.2     8.5    -      -       -      -
     60S  SER*     3.6    32.1    -      -       -      -
     64S  GLN*     3.6    32.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 159 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144R  ASP*     3.9    20.6    +      -       -      +
    146R  TYR      3.5    22.0    +      -       -      -
    147R  GLN*     3.8    22.4    -      -       -      +
    148R  LEU      3.2    19.0    -      -       -      +
    149R  PHE*     3.6    28.1    -      -       +      -
    157R  PHE*     5.3     0.2    -      -       -      -
    158R  TYR*     1.3    73.5    -      -       -      +
    160R  TYR*     1.3    63.4    +      -       -      +
    161R  ASN*     5.8     6.0    -      -       -      +
     59S  SER*     3.3     3.6    -      -       -      -
     60S  SER*     2.7    50.4    +      -       -      -
----------------------------------------------------------
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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