Contacts of the strand formed by residues 245 - 249 (chain B) in PDB entry 1II7


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 245 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  TYR*     3.7    26.0    -      -       +      -
    239B  GLU      3.5     3.8    -      -       -      -
    240B  TRP*     3.4    48.0    -      +       +      -
    244B  LYS*     1.3    97.2    +      -       -      +
    246B  LYS*     1.3    67.4    +      -       -      +
    247B  GLU*     4.3     4.9    -      -       -      +
    276B  VAL*     3.7    24.2    -      -       +      -
    278B  ILE*     4.3     4.7    -      -       +      -
    288B  ALA*     3.2    35.4    -      -       +      -
    291B  ARG*     4.2     4.3    -      -       +      -
    292B  LEU*     3.7    26.2    -      -       +      -
    295B  LEU*     4.0    19.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 246 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237B  ARG      3.7     0.4    -      -       -      +
    238B  TYR*     3.3     6.9    -      -       -      -
    239B  GLU*     2.8    57.2    +      -       +      +
    241B  ASP*     3.6    35.5    -      -       +      +
    244B  LYS*     3.7     4.2    +      -       -      +
    245B  PHE*     1.3    75.8    -      -       -      +
    247B  GLU*     1.3    61.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 247 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236B  VAL*     4.5     1.3    -      -       +      -
    237B  ARG      3.6     2.2    -      -       -      -
    238B  TYR*     3.3    38.0    +      -       +      -
    244B  LYS*     5.4     6.0    +      -       -      +
    245B  PHE      4.3     5.7    -      -       -      +
    246B  LYS*     1.3    77.6    -      -       -      +
    248B  ARG*     1.3    64.0    +      -       -      +
    249B  TYR*     3.6    33.2    +      -       +      -
    295B  LEU*     5.3     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234B  TYR*     2.8    28.9    +      -       -      +
    236B  VAL*     3.4     3.2    -      -       -      +
    237B  ARG*     2.7    86.4    +      -       +      +
    247B  GLU*     1.3    78.3    -      -       -      +
    249B  TYR*     1.3    68.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234B  TYR*     3.8     4.5    +      -       -      -
    235B  GLU*     3.7     8.1    -      -       +      -
    236B  VAL*     3.2    30.1    -      -       +      +
    238B  TYR*     5.1     2.8    +      -       -      -
    247B  GLU*     3.6    33.1    +      -       +      -
    248B  ARG*     1.3    83.7    -      -       -      +
    250B  GLY*     1.3    68.3    +      -       -      +
----------------------------------------------------------
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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