Contacts of the strand formed by residues 224 - 229 (chain C) in PDB entry 4BUR


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 GLY 224 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    151C  ARG*     3.1    19.0    -      -       -      +
    157C  ALA      2.9    10.7    +      -       -      +
    158C  ARG*     4.3     1.0    -      -       -      +
    159C  VAL*     3.0    27.0    +      -       -      +
    212C  VAL*     4.1    11.2    -      -       -      -
    217C  LEU*     3.5     9.9    -      -       -      +
    223C  GLY*     1.3    73.7    -      -       -      -
    225C  VAL*     1.3    64.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 225 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144C  PHE*     6.0     2.2    -      -       +      -
    147C  ALA*     4.0    19.5    -      -       +      -
    148C  ARG*     5.4     0.9    -      -       +      +
    151C  ARG*     3.9    26.7    -      -       +      +
    159C  VAL*     3.5    11.9    -      -       +      +
    161C  ILE*     4.1    23.3    -      -       +      -
    206C  GLN*     5.3    12.1    -      -       -      +
    210C  PHE      5.7     1.9    +      -       -      +
    211C  TYR*     3.5    34.2    -      -       +      -
    212C  VAL*     3.2    23.6    +      -       -      +
    224C  GLY*     1.3    75.5    -      -       -      +
    226C  ALA*     1.3    63.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 226 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159C  VAL      2.9     7.5    +      -       -      +
    160C  LEU*     3.5     5.8    -      -       +      +
    161C  ILE*     3.0    27.7    +      -       -      +
    212C  VAL*     3.2    23.3    -      -       +      +
    213C  SER      3.4    19.3    -      -       -      +
    214C  ALA*     3.9    10.3    -      -       -      -
    217C  LEU*     4.0    16.4    -      -       +      -
    224C  GLY      4.1     0.4    -      -       -      -
    225C  VAL*     1.3    75.1    -      -       -      +
    227C  VAL*     1.3    63.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 227 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160C  LEU*     4.9     0.2    -      -       -      -
    161C  ILE*     3.6    27.6    -      -       +      +
    163C  SER*     4.5     7.2    -      -       -      -
    167C  GLU      5.2     0.2    -      -       -      +
    168C  LEU*     3.8    19.3    -      -       +      +
    169C  PRO*     4.3    15.0    -      -       +      -
    211C  TYR*     3.5    37.8    -      -       +      +
    212C  VAL      4.3     2.8    +      -       -      -
    214C  ALA*     5.5     3.9    +      -       -      +
    225C  VAL*     4.3     0.4    +      -       +      -
    226C  ALA*     1.3    77.4    -      -       -      +
    228C  LEU*     1.3    61.2    +      -       -      +
    229C  THR*     3.3    30.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 228 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127C  LYS*     4.3    25.1    -      -       +      -
    128C  ALA*     3.8    24.9    -      -       +      -
    160C  LEU*     4.2    13.5    -      -       +      +
    161C  ILE      2.9    14.1    +      -       -      +
    162C  VAL*     3.8    14.0    -      -       +      -
    163C  SER      3.0    24.0    +      -       -      +
    214C  ALA*     4.5    14.1    -      -       +      -
    226C  ALA      4.1     1.8    -      -       -      -
    227C  VAL*     1.3    69.7    -      -       -      +
    229C  THR*     1.3    66.8    +      -       -      +
    231C  LYS*     3.7    36.0    -      -       +      +
    245C  LEU*     4.0    14.6    -      -       +      -
    251C  ILE*     4.8     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 229 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163C  SER*     3.6     5.4    -      -       -      +
    165C  ASP      3.5     8.7    -      -       -      +
    166C  PRO*     3.8    20.7    +      -       -      +
    167C  GLU      4.1    11.2    -      -       -      +
    168C  LEU*     4.2    12.3    -      -       +      -
    227C  VAL*     3.3    28.7    +      -       +      +
    228C  LEU*     1.3    74.7    -      -       -      +
    230C  GLY*     1.3    66.0    +      -       -      +
    231C  LYS*     3.1    14.6    +      -       -      +
----------------------------------------------------------
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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