Contacts of the strand formed by residues 243 - 250 (chain A) in PDB entry 6M85


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 TYR 243 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  PRO*     3.6    30.4    -      -       +      +
    236A  ARG*     3.7     8.7    -      -       -      -
    237A  ILE*     4.0    19.7    -      -       +      +
    241A  GLY      3.9     2.2    +      -       -      +
    242A  GLU*     1.3    77.8    -      -       -      +
    244A  ILE*     1.3    64.4    +      -       -      +
    245A  PRO*     3.5    39.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  PRO*     3.2    20.3    -      -       -      +
    236A  ARG*     2.9    49.4    +      -       +      +
    238A  THR*     4.0    17.3    -      -       +      -
    242A  GLU*     4.6    13.0    -      -       +      +
    243A  TYR*     1.3    77.8    -      -       -      +
    245A  PRO*     1.4    67.8    -      -       +      +
    246A  LEU      3.2     4.5    +      -       -      +
    247A  ASP*     3.6    37.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235A  PRO*     3.0    19.6    -      -       -      +
    243A  TYR*     3.5    38.5    +      -       +      +
    244A  ILE*     1.4    84.3    -      -       +      +
    246A  LEU*     1.3    71.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  ARG*     4.7     8.7    -      -       -      +
     43A  ASN      6.0     2.5    -      -       -      +
     45A  PHE*     3.2    50.7    -      -       +      -
    233A  ILE*     3.6    22.4    -      -       +      -
    234A  LYS*     4.0     3.6    -      -       -      -
    235A  PRO*     4.3    14.8    -      -       +      -
    244A  ILE*     3.3     5.2    -      -       -      +
    245A  PRO*     1.3    92.0    -      -       +      +
    247A  ASP*     1.3    63.0    +      -       -      +
    248A  GLN*     3.7    15.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  LEU      3.3     5.5    -      -       -      +
    233A  ILE*     3.6     2.4    -      -       -      -
    234A  LYS      3.0    35.0    +      -       -      +
    236A  ARG*     2.9    39.0    +      -       +      +
    244A  ILE*     3.6    30.0    +      -       +      +
    246A  LEU*     1.3    75.2    -      -       -      +
    248A  GLN*     1.3    68.2    +      -       -      +
    249A  ILE*     3.8    22.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  PHE*     4.7    18.3    -      -       -      -
    231A  GLN*     2.7    44.5    +      -       -      +
    232A  LEU      3.7     4.0    -      -       -      -
    233A  ILE*     3.7    15.2    -      -       +      +
    246A  LEU*     3.8    12.4    +      -       +      +
    247A  ASP*     1.3    83.6    +      -       -      +
    249A  ILE*     1.3    62.6    +      -       -      +
    250A  ASP      4.2     1.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231A  GLN*     3.4     3.6    -      -       -      +
    232A  LEU*     2.8    57.9    +      -       +      +
    234A  LYS*     5.6     8.1    -      -       +      -
    236A  ARG*     4.8    11.0    -      -       -      +
    247A  ASP*     3.8    26.5    -      -       +      +
    248A  GLN*     1.3    77.4    -      -       -      +
    250A  ASP*     1.3    69.4    +      -       -      +
    279A  PRO*     3.6    30.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229A  ARG*     5.5     7.1    +      -       -      +
    230A  ALA      3.7    13.3    +      -       -      +
    231A  GLN*     4.6     6.4    +      -       +      +
    248A  GLN      4.2     1.6    +      -       -      -
    249A  ILE*     1.3    86.2    -      -       -      +
    251A  ILE*     1.3    78.0    +      -       -      +
    252A  ASP*     3.4    12.5    +      -       -      +
    255A  PHE*     6.2     0.2    -      -       -      +
    279A  PRO*     3.8     8.7    -      -       -      +
----------------------------------------------------------
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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