Contacts of the helix formed by residues 211 - 221 (chain 1) in PDB entry 1BHQ


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 THR 211 (chain 1).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1381  LEU*     4.5     1.4    -      -       +      +
    1761  TYR*     2.5    38.4    +      -       +      +
    2091  THR*     3.5    14.8    +      -       -      +
    2101  HIS*     1.3    70.8    -      -       -      +
    2121  ALA*     1.3    60.8    +      -       -      +
    2141  GLY*     3.4     1.5    +      -       -      +
    2151  ILE*     3.0    34.8    +      -       +      +
    2391  VAL*     4.5     8.7    -      -       +      -
    2411  THR*     4.7     1.8    -      -       +      +
    2431  GLY      4.6     3.1    +      -       -      -
    2451  LYS*     4.2     2.8    -      -       -      +
    2481  ASP*     3.8     1.0    +      -       -      -
    2521  TYR*     3.4    30.5    +      -       +      +
    2871  ILE*     4.2    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 212 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2111  THR*     1.3    73.6    -      -       -      +
    2131  THR*     1.3    65.9    +      -       -      +
    2141  GLY      2.9     5.1    +      -       -      -
    2151  ILE*     2.9    10.6    +      -       -      -
    2161  ARG      3.0     9.0    +      -       -      -
    2451  LYS*     3.6    16.3    -      -       +      +
    2481  ASP*     3.2    13.3    +      -       -      +
    2501  LEU*     3.9     7.6    -      -       +      +
    2511  GLY      3.7    24.7    -      -       -      +
    2521  TYR*     4.2     7.4    -      -       +      -
    2551  VAL*     3.3    25.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 213 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1801  PHE*     3.7    20.6    -      -       +      -
    2101  HIS*     4.0     5.2    -      -       +      +
    2121  ALA*     1.3    78.4    -      -       -      +
    2141  GLY*     1.3    57.2    +      -       -      +
    2161  ARG*     3.1    25.7    -      -       +      +
    2171  LYS*     3.2    37.0    -      -       +      +
    2481  ASP*     2.6    26.7    +      -       -      -
    2491  PRO*     4.3     2.3    -      -       -      +
    2501  LEU*     3.8    18.0    -      -       +      +
    5492  PRO*     4.2    21.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 214 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1381  LEU*     4.0    18.2    -      -       -      -
    1741  MET*     4.3     1.1    -      -       -      +
    1761  TYR*     4.8     0.7    -      -       -      -
    1801  PHE*     3.9    21.5    -      -       -      -
    2101  HIS      3.3     8.6    +      -       -      -
    2111  THR*     3.4     5.4    +      -       -      -
    2121  ALA      2.9     1.0    -      -       -      -
    2131  THR*     1.3    75.1    -      -       -      +
    2151  ILE*     1.3    64.9    +      -       -      +
    2161  ARG      3.0     1.3    +      -       -      -
    2171  LYS*     3.2     5.7    +      -       -      +
    2181  VAL*     3.0    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 215 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1381  LEU*     4.3    10.1    -      -       +      -
    2111  THR*     3.0    31.9    +      -       +      +
    2121  ALA      2.9     6.1    +      -       -      +
    2141  GLY*     1.3    76.5    -      -       -      +
    2161  ARG*     1.3    57.2    +      -       -      +
    2181  VAL*     3.5     6.4    +      -       -      +
    2191  VAL*     2.9    42.3    +      -       +      +
    2371  LEU*     5.0    10.5    -      -       +      -
    2391  VAL*     4.3     9.9    -      -       +      -
    2521  TYR*     4.6     5.8    -      -       +      -
    2551  VAL*     3.9    21.8    -      -       +      -
    2561  ILE*     4.5    15.5    -      -       +      -
    2591  ALA*     4.7     9.6    -      -       +      -
    2661  ARG*     5.1     4.5    -      -       -      -
    2871  ILE*     3.5    31.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 216 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2121  ALA      3.0    10.5    +      -       -      +
    2131  THR*     3.1    20.0    -      -       +      +
    2151  ILE*     1.3    76.8    -      -       -      +
    2171  LYS*     1.3    56.8    +      -       +      +
    2191  VAL*     3.5     5.8    +      -       -      +
    2201  ARG*     2.7    76.6    +      -       -      +
    2501  LEU*     3.1    28.3    -      -       +      +
    2541  ASP      3.4    16.7    +      -       -      -
    2551  VAL*     4.3     9.3    -      -       +      +
    2581  GLU*     3.1    25.5    +      -       -      +
    5492  PRO      3.4    21.7    +      -       -      +
    5502  LEU*     4.0     1.0    -      -       -      +
    5512  GLY      4.7     0.2    -      -       -      +
    5542  ASP*     2.7    37.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 217 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1741  MET*     4.0    17.9    -      -       +      +
    1801  PHE*     3.6    38.8    -      -       +      -
    2131  THR*     3.2    38.1    -      -       -      +
    2141  GLY      3.2     4.6    +      -       -      +
    2161  ARG*     1.3    76.2    -      -       +      +
    2181  VAL*     1.3    64.0    +      -       -      +
    2191  VAL      3.1     1.6    -      -       -      -
    2201  ARG*     4.0     3.8    -      -       -      +
    2211  GLU*     2.7    51.3    +      -       +      +
    2221  LEU*     3.4     1.7    +      -       -      +
    5492  PRO*     6.1     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 218 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1361  ALA*     4.4     0.2    -      -       +      -
    1371  PHE      5.2     0.7    -      -       -      +
    1381  LEU*     3.8    34.3    -      -       +      -
    1741  MET*     4.1     8.1    -      -       +      -
    2141  GLY      3.0    20.5    +      -       -      +
    2151  ILE*     3.8     7.4    -      -       -      +
    2171  LYS*     1.3    75.7    -      -       -      +
    2191  VAL*     1.3    57.7    +      -       +      +
    2221  LEU*     3.1    45.3    +      -       +      +
    2231  PHE*     3.2    29.2    +      -       +      -
    2371  LEU*     3.2    35.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 219 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2151  ILE*     2.9    26.9    -      -       +      +
    2161  ARG*     3.5     5.8    -      -       -      +
    2171  LYS      3.1     0.2    -      -       -      -
    2181  VAL*     1.3    81.7    -      -       +      +
    2201  ARG*     1.3    61.3    +      -       +      +
    2231  PHE*     4.3    22.9    +      -       +      +
    2371  LEU*     5.8     0.9    -      -       +      -
    2551  VAL*     5.4     1.3    -      -       +      +
    2581  GLU*     4.2    35.7    -      -       +      +
    2591  ALA*     4.1    27.8    -      -       +      +
    2611  ARG*     4.5     6.7    -      -       -      +
    2621  GLU*     4.6    14.3    -      -       +      +
    2641  VAL*     4.7    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 220 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    2161  ARG*     2.7    65.1    +      -       -      +
    2171  LYS*     4.6     2.7    -      -       -      -
    2191  VAL*     1.3    76.2    -      -       +      +
    2211  GLU*     1.3    64.6    +      -       +      +
    2241  ASN*     3.4    23.2    +      -       -      +
    2581  GLU*     3.2    34.4    +      -       -      +
    5532  GLU*     4.6    14.5    +      -       -      -
    5542  ASP*     4.4     6.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 221 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1741  MET*     4.5     7.1    -      -       -      +
    1821  ILE*     3.5    26.8    -      -       +      +
    2171  LYS*     2.7    33.4    +      -       +      +
    2201  ARG*     1.3    79.2    -      -       +      +
    2221  LEU*     1.3    59.3    +      -       +      +
    2231  PHE      3.6     0.4    -      -       -      -
    2241  ASN*     3.0    18.3    -      -       -      +
    2271  ASN*     2.6    35.4    +      -       -      +
----------------------------------------------------------
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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