Contacts of the strand formed by residues 244 - 248 (chain F) in PDB entry 3STJ


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 ILE 244 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242F  LEU*     3.9    22.6    -      -       +      +
    243F  GLY*     1.3    79.5    -      -       -      +
    245F  LYS*     1.3    73.3    +      -       -      +
    246F  GLY*     4.6     0.4    -      -       -      +
    265F  ALA*     5.8     0.7    -      -       +      -
    267F  VAL*     3.7    24.7    -      -       +      -
    269F  GLU      3.6     0.7    -      -       -      -
    270F  VAL*     3.7    30.1    -      -       +      -
    271F  LEU*     4.5     4.1    -      -       -      +
    276F  SER*     3.7    26.5    -      -       -      +
    281F  VAL*     3.8     9.9    -      -       +      -
    287F  ILE*     4.5    12.3    -      -       +      -
    298F  PHE*     4.5    21.0    -      -       +      -
    301F  LEU*     5.2     1.3    -      -       +      -
    316F  LEU*     5.7     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 245 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244F  ILE*     1.3    76.9    -      -       -      +
    246F  GLY*     1.3    59.5    +      -       -      +
    267F  VAL*     3.8     2.9    -      -       -      +
    268F  SER*     2.8    30.7    +      -       -      +
    269F  GLU*     2.8    59.2    +      -       +      +
    271F  LEU*     4.0    17.7    -      -       +      +
    298F  PHE*     5.5     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 246 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244F  ILE*     5.2     0.4    -      -       -      -
    245F  LYS*     1.3    74.9    -      -       -      +
    247F  THR*     1.3    66.9    +      -       -      +
    266F  PHE      3.1    14.4    -      -       -      -
    267F  VAL*     4.4     0.7    -      -       -      -
    268F  SER*     3.9     7.6    +      -       -      -
    298F  PHE*     3.7    34.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 247 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246F  GLY*     1.3    77.4    -      -       -      +
    248F  GLU*     1.3    65.8    +      -       -      +
    265F  ALA*     3.7     5.0    -      -       -      -
    266F  PHE*     2.9    47.4    +      -       -      -
    268F  SER*     5.5     4.7    -      -       -      +
    298F  PHE*     3.8     9.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 248 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247F  THR*     1.3    82.3    +      -       -      +
    249F  MET*     1.3    69.1    +      -       -      +
    250F  SER*     3.6     5.9    +      -       -      -
    253F  ILE*     5.0     3.3    -      -       -      +
    264F  GLY      3.5     5.2    +      -       -      +
    266F  PHE*     4.5     3.0    -      -       -      +
    296F  ASN      4.8     0.3    -      -       -      +
    297F  SER*     3.3    19.2    -      -       -      -
    298F  PHE*     2.9    37.8    +      -       +      +
    299F  ALA*     3.1    20.3    +      -       -      +
----------------------------------------------------------
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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