Contacts of the helix formed by residues 462 - 474 (chain H) in PDB entry 1B6C


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 GLU 462 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    460H  SER      3.4     5.5    +      -       -      -
    461H  CYS*     1.3    71.8    -      -       -      +
    463H  ALA*     1.3    63.0    +      -       -      +
    465H  ARG*     3.1    36.3    +      -       -      +
    466H  VAL*     3.0    33.2    +      -       +      +
    495H  LEU*     4.0    11.0    -      -       +      +
    498H  GLN*     3.7    25.4    +      -       -      +
    499H  GLU*     4.7     6.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 463 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299H  VAL*     3.5    32.3    -      -       +      -
    302H  MET*     4.0    11.0    -      -       +      -
    303H  ILE*     4.5     0.7    -      -       +      -
    461H  CYS*     3.2    10.0    +      -       -      -
    462H  GLU*     1.3    78.2    -      -       -      +
    464H  LEU*     1.3    62.2    +      -       -      +
    466H  VAL*     3.4     3.3    +      -       -      +
    467H  MET*     3.2    25.5    +      -       -      +
    495H  LEU*     4.1    13.0    -      -       +      +
    499H  GLU*     3.6    20.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 464 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299H  VAL*     4.8     0.2    -      -       +      -
    302H  MET*     3.6    29.4    -      -       +      -
    412H  ALA*     4.0    20.2    -      -       +      +
    415H  CYS*     4.1    17.3    -      -       +      -
    417H  ILE*     3.9    15.9    -      -       +      -
    457H  ARG*     5.5     4.0    -      -       -      +
    458H  TRP*     3.5    41.4    -      -       +      +
    461H  CYS*     3.2    30.0    +      -       +      +
    463H  ALA*     1.3    77.0    -      -       +      +
    465H  ARG*     1.3    56.4    +      -       -      +
    467H  MET*     3.5     3.4    -      -       +      +
    468H  ALA*     2.7    36.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 465 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    458H  TRP      3.2    14.5    +      -       -      +
    459H  GLN*     3.2    43.8    +      -       -      +
    460H  SER      3.4    15.4    +      -       -      -
    461H  CYS      3.1     9.7    +      -       -      +
    462H  GLU*     3.1    50.6    +      -       -      +
    464H  LEU*     1.3    78.3    -      -       -      +
    466H  VAL*     1.3    59.4    +      -       -      +
    468H  ALA*     3.8     5.4    -      -       -      +
    469H  LYS*     3.0    29.3    +      -       +      +
    472H  ARG*     4.7     1.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 466 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    462H  GLU*     3.0    24.9    +      -       +      +
    463H  ALA      3.8     4.7    -      -       -      +
    465H  ARG*     1.3    77.0    -      -       +      +
    467H  MET*     1.3    62.5    +      -       -      +
    469H  LYS*     3.2     8.1    +      -       +      +
    470H  ILE*     2.9    42.4    +      -       +      +
    491H  THR*     3.9    22.7    -      -       -      +
    492H  LEU*     4.5     2.2    -      -       +      -
    495H  LEU*     3.9    33.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 467 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302H  MET*     3.8    37.5    -      -       +      -
    303H  ILE*     5.7     2.7    -      -       -      -
    306H  ALA*     3.8    23.8    -      -       +      -
    408H  PHE*     3.7    48.9    -      -       +      +
    411H  ILE*     5.1     1.8    -      -       +      -
    412H  ALA*     4.8     9.4    -      -       +      +
    463H  ALA      3.2    14.5    +      -       -      +
    464H  LEU*     3.5     9.6    -      -       -      +
    466H  VAL*     1.3    78.3    -      -       -      +
    468H  ALA*     1.3    51.3    +      -       -      +
    470H  ILE*     3.0     7.9    +      -       -      +
    471H  MET*     2.8    40.1    +      -       -      +
    492H  LEU*     4.2    18.6    -      -       -      -
    495H  LEU*     5.3     3.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 468 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454H  ILE*     3.8    23.6    -      -       +      +
    458H  TRP*     4.2     7.0    -      -       +      -
    459H  GLN*     4.1     5.8    -      -       -      +
    464H  LEU      2.7    21.7    +      -       -      +
    465H  ARG*     3.8     4.5    -      -       -      +
    467H  MET*     1.3    72.0    -      -       -      +
    469H  LYS*     1.3    64.2    +      -       -      +
    471H  MET*     3.3    14.8    +      -       -      +
    472H  ARG*     3.1    44.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 469 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    465H  ARG*     3.0    19.9    +      -       +      +
    466H  VAL*     3.6     7.0    -      -       -      +
    468H  ALA*     1.3    77.8    -      -       -      +
    470H  ILE*     1.3    57.6    +      -       +      +
    472H  ARG*     3.5    24.4    +      -       -      +
    473H  GLU*     2.6    66.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 470 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    408H  PHE*     3.8    23.8    -      -       +      -
    466H  VAL*     2.9    23.2    +      -       +      +
    467H  MET*     3.0    10.1    +      -       -      +
    469H  LYS*     1.3    74.8    -      -       +      +
    471H  MET*     1.3    66.8    +      -       -      +
    473H  GLU*     3.1     9.6    +      -       -      +
    474H  CYS*     3.0    24.6    +      -       -      -
    483H  LEU*     4.2     9.6    -      -       +      -
    488H  ILE*     3.9    35.2    -      -       +      -
    491H  THR*     3.9    19.3    -      -       +      +
    492H  LEU*     3.4    33.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 471 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405H  GLY*     4.0    14.6    -      -       -      +
    408H  PHE*     4.2    13.0    -      -       +      +
    409H  TRP*     3.0    50.9    -      -       +      -
    412H  ALA*     4.8     2.5    -      -       -      -
    454H  ILE*     4.1     6.1    -      -       +      -
    458H  TRP*     3.7    23.1    -      -       +      -
    467H  MET*     2.8    25.3    +      -       -      +
    468H  ALA*     3.5    11.7    -      -       -      +
    470H  ILE*     1.3    72.5    -      -       -      +
    472H  ARG*     1.3    58.2    +      -       -      +
    474H  CYS*     2.9    22.5    +      -       -      +
    475H  TRP*     3.0    46.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 472 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454H  ILE*     3.7    24.6    -      -       +      +
    459H  GLN*     3.1    32.5    +      -       -      +
    465H  ARG*     4.7     1.0    +      -       -      +
    468H  ALA*     3.1    30.5    +      -       -      +
    469H  LYS*     3.5    32.7    -      -       -      +
    470H  ILE      3.3     0.2    -      -       -      -
    471H  MET*     1.3    79.0    -      -       -      +
    473H  GLU*     1.3    58.3    +      -       +      +
    475H  TRP*     3.1    24.1    +      -       +      +
    476H  TYR*     3.7    23.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 473 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469H  LYS*     2.6    58.0    +      -       +      +
    470H  ILE      3.1     1.5    +      -       -      +
    472H  ARG*     1.3    76.0    -      -       -      +
    474H  CYS*     1.3    58.3    +      -       -      +
    476H  TYR*     2.8    38.8    +      -       +      -
    481H  ALA      5.4     0.2    -      -       -      +
    482H  ARG*     3.1    29.1    -      -       -      +
    483H  LEU*     3.1    46.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 474 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401H  ILE*     3.4    41.3    -      -       -      +
    402H  TYR*     3.4    11.3    -      -       -      +
    405H  GLY*     3.8    21.5    -      -       -      -
    408H  PHE*     5.8     0.4    -      -       -      -
    470H  ILE*     3.0    21.3    +      -       -      -
    471H  MET      2.9    11.2    +      -       -      +
    473H  GLU*     1.3    81.0    -      -       -      +
    475H  TRP*     1.3    61.1    +      -       +      +
    476H  TYR      3.6     0.9    -      -       -      -
    482H  ARG*     3.2    23.6    +      -       -      -
    483H  LEU*     5.0     1.3    -      -       -      -
    488H  ILE*     3.6    22.4    -      -       -      -
----------------------------------------------------------
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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