Contacts of the helix formed by residues 196 - 206 (chain B) in PDB entry 2BM9


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 ALA 196 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192B  TRP      3.0    16.1    +      -       -      +
    195B  TYR*     1.3    80.2    -      -       +      +
    197B  PRO*     1.3    65.7    -      -       -      +
    198B  GLN      3.1     3.1    +      -       -      -
    199B  LEU*     4.1    11.4    -      -       +      -
    200B  PHE*     3.0    20.1    +      -       -      +
     12C  LEU*     4.1    14.1    -      -       +      -
     15C  PHE*     4.2    15.3    -      -       +      -
     20C  GLU*     3.2    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 197 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193B  TYR*     3.2    36.9    -      -       +      +
    194B  ARG      3.8     6.3    -      -       -      +
    195B  TYR      3.4     7.6    -      -       -      +
    196B  ALA*     1.3    89.9    -      -       -      +
    198B  GLN*     1.3    64.9    +      -       +      +
    201B  SER*     3.3    27.0    +      -       -      -
     20C  GLU*     4.1     5.6    -      -       +      +
     51C  SER*     6.0     6.3    -      -       -      -
     53C  PHE*     6.0     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 198 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197B  PRO*     1.3    81.7    -      -       +      +
    199B  LEU*     1.3    63.8    +      -       +      +
    201B  SER*     3.9     4.0    +      -       -      -
    202B  GLU*     3.5    22.0    +      -       -      +
     20C  GLU*     3.0    15.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 199 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196B  ALA*     3.3     6.9    +      -       +      -
    198B  GLN*     1.3    76.3    -      -       +      +
    200B  PHE*     1.3    61.8    +      -       -      +
    202B  GLU*     3.3    13.4    +      -       -      +
    203B  TYR*     2.9    70.5    +      -       +      +
      7C  GLN*     5.3     0.4    -      -       -      +
     10C  GLN*     4.2    16.6    -      -       -      +
     12C  LEU*     4.8     6.7    -      -       +      -
     15C  PHE*     3.9    29.2    -      -       +      -
     20C  GLU*     3.0    30.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 200 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  TRP*     3.5    35.9    -      +       -      -
    166B  PHE*     3.8    22.9    -      +       -      -
    189B  ILE*     3.5    35.7    -      -       +      -
    192B  TRP*     3.5    20.2    -      +       +      +
    193B  TYR*     3.6    26.7    -      +       +      -
    196B  ALA      3.0    14.8    +      -       -      +
    199B  LEU*     1.3    76.5    -      -       -      +
    201B  SER*     1.3    66.4    +      -       -      +
    203B  TYR*     3.3     2.3    +      -       -      -
    204B  LEU*     2.9    53.3    +      -       +      +
     12C  LEU*     3.7    13.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 201 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  LEU      5.0     2.6    -      -       -      +
     41A  TRP*     4.7    10.7    -      -       -      +
     42A  ALA*     5.1     4.5    -      -       -      +
    193B  TYR*     4.1    15.8    -      -       -      -
    197B  PRO      3.3    18.6    +      -       -      -
    198B  GLN*     4.2     5.6    -      -       -      -
    199B  LEU      3.4     0.2    -      -       -      -
    200B  PHE*     1.3    81.3    -      -       -      +
    202B  GLU*     1.3    57.2    +      -       -      +
    204B  LEU*     4.0     4.7    -      -       -      +
    205B  GLY*     3.1    23.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 202 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  GLN      3.5    13.5    +      -       -      +
    199B  LEU*     3.3    17.7    +      -       -      +
    200B  PHE      3.0     0.2    -      -       -      -
    201B  SER*     1.3    75.0    -      -       -      +
    203B  TYR*     1.3    70.2    +      -       +      +
    204B  LEU      2.9     4.9    +      -       -      -
    205B  GLY*     3.0    11.3    +      -       -      -
    206B  ALA*     3.1    14.0    +      -       -      +
      7C  GLN*     2.7    38.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 203 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166B  PHE*     3.4    28.5    -      +       +      -
    199B  LEU*     2.9    38.4    +      -       +      +
    200B  PHE*     3.9     2.9    -      -       -      +
    202B  GLU*     1.3    79.8    -      -       -      +
    204B  LEU*     1.3    56.5    +      -       -      +
    206B  ALA*     4.0     2.2    -      -       -      +
    207B  PHE*     3.0    30.7    -      -       -      -
      7C  GLN*     3.4    27.9    +      -       -      -
      8C  ASN      3.5     6.6    +      -       -      -
      9C  PHE*     3.4    45.5    -      +       +      -
     10C  GLN*     2.9    37.4    +      -       +      -
     12C  LEU*     3.3    34.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 204 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  LEU*     3.4    46.0    -      -       +      +
     41A  TRP*     3.6    43.5    -      -       +      +
    166B  PHE*     4.2     8.7    -      -       +      -
    169B  MET*     5.0     8.5    -      -       +      -
    185B  ILE*     5.9     1.1    -      -       +      -
    189B  ILE*     5.5     4.5    -      -       +      -
    200B  PHE*     2.9    41.5    +      -       +      +
    201B  SER*     4.1     4.3    -      -       -      +
    203B  TYR*     1.3    77.7    -      -       -      +
    205B  GLY*     1.3    59.1    +      -       -      +
    206B  ALA      3.1     6.1    +      -       -      -
    207B  PHE*     3.3    11.1    +      -       -      +
    229B  LEU*     4.6    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 205 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  LEU*     3.9    21.5    +      -       -      -
     39A  ASP*     4.4     6.7    -      -       -      +
    201B  SER      3.1    14.6    +      -       -      -
    202B  GLU*     3.0     6.0    +      -       -      -
    204B  LEU*     1.3    72.9    -      -       -      +
    206B  ALA*     1.3    62.4    +      -       -      +
    207B  PHE      3.1     2.6    +      -       -      -
    208B  ARG*     3.7    26.3    +      -       -      +
      3C  ASP      5.3     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 206 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202B  GLU      3.1    13.3    +      -       -      +
    203B  TYR*     4.0     4.7    -      -       -      +
    205B  GLY*     1.3    79.5    -      -       -      +
    207B  PHE*     1.3    65.7    +      -       +      +
    208B  ARG*     3.4     4.2    +      -       -      +
    209B  ASP*     4.7     4.2    +      -       -      +
      3C  ASP*     3.7    31.2    -      -       -      +
      4C  TYR*     3.4    39.3    -      -       +      -
      7C  GLN*     5.3     4.3    -      -       -      +
      9C  PHE*     5.1     3.8    -      -       +      -
----------------------------------------------------------
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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