Contacts of the helix formed by residues 63 - 77 (chain C) in PDB entry 2HR3


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 ARG 63 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62C  MSE      1.3    74.4    -      -       -      +
     64C  SER*     1.3    69.7    +      -       -      +
     65C  SER*     2.7    10.5    +      -       -      +
     66C  ASN*     2.9    21.5    +      -       +      +
     67C  LEU*     3.2     9.5    +      -       -      +
     31D  ASP*     4.8     0.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 64 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57C  ALA*     5.0     6.8    -      -       -      +
     62C  MSE      3.6     2.2    +      -       -      -
     63C  ARG*     1.3    70.4    -      -       -      +
     65C  SER*     1.3    65.8    +      -       -      +
     67C  LEU*     3.7     5.6    +      -       -      +
     68C  ALA*     3.1    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 65 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63C  ARG*     2.7    10.9    +      -       -      +
     64C  SER*     1.3    78.7    +      -       -      +
     66C  ASN*     1.3    66.1    +      -       -      -
     67C  LEU      3.1     1.8    -      -       -      -
     68C  ALA*     3.1    17.9    +      -       -      +
     69C  ALA*     3.2    13.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 66 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62C  MSE      3.3    15.3    -      -       +      +
     63C  ARG*     2.9    22.9    +      -       +      +
     65C  SER*     1.3    73.9    -      -       -      +
     67C  LEU*     1.3    58.9    +      -       -      +
     69C  ALA*     3.7    16.4    -      -       -      +
     70C  LEU*     3.7     9.4    -      -       -      +
     31D  ASP*     4.0    10.5    -      -       -      +
     33D  VAL*     3.5    30.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 67 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40C  VAL*     4.2    21.1    -      -       +      -
     53C  PRO*     3.0    38.6    -      -       +      +
     56C  LEU*     3.4    19.5    -      -       +      -
     57C  ALA*     3.7    10.1    -      -       +      +
     60C  GLU*     6.3     0.4    -      -       +      -
     62C  MSE      3.4    25.1    -      -       +      +
     63C  ARG      3.2     8.6    +      -       -      +
     64C  SER*     4.0     7.9    -      -       -      +
     65C  SER      3.1     0.6    -      -       -      -
     66C  ASN*     1.3    74.2    -      -       -      +
     68C  ALA*     1.3    62.0    +      -       -      +
     69C  ALA      3.2     2.0    -      -       -      -
     70C  LEU*     3.3     3.6    +      -       +      +
     71C  LEU*     2.9    53.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 68 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  SER      3.1    15.2    +      -       -      +
     65C  SER*     3.1    14.0    +      -       -      +
     67C  LEU*     1.3    76.9    -      -       -      +
     69C  ALA*     1.3    56.4    +      -       -      +
     71C  LEU*     4.0     8.2    -      -       -      +
     72C  ARG*     3.0    30.7    +      -       -      +
     82C  ARG*     6.1     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 69 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65C  SER      3.2     7.9    +      -       -      +
     66C  ASN*     3.7    13.0    -      -       -      +
     68C  ALA*     1.3    78.1    -      -       -      +
     70C  LEU*     1.3    60.3    +      -       +      +
     72C  ARG*     3.2     7.9    -      -       -      +
     73C  GLU*     3.0    29.5    +      -       -      +
     33D  VAL*     6.3     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 70 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33C  VAL*     4.9     2.7    -      -       +      +
     36C  SER*     3.2    30.7    -      -       -      +
     37C  GLN*     3.8    32.8    -      -       +      +
     40C  VAL*     4.3    19.7    -      -       +      -
     62C  MSE      3.8    18.4    -      -       +      -
     66C  ASN      3.7    16.6    +      -       -      +
     67C  LEU*     3.3     6.5    +      -       +      +
     69C  ALA*     1.3    76.8    -      -       +      +
     71C  LEU*     1.3    59.9    +      -       -      +
     72C  ARG      3.2     0.2    -      -       -      -
     73C  GLU*     3.5     6.5    -      -       -      +
     74C  LEU*     2.7    43.1    +      -       +      +
     33D  VAL*     4.2     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 71 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40C  VAL*     4.0    17.5    -      -       +      -
     53C  PRO*     3.7    32.1    -      -       +      -
     56C  LEU*     4.2     9.2    -      -       +      -
     67C  LEU*     2.9    51.1    +      -       +      +
     68C  ALA*     4.0     7.2    -      -       -      +
     70C  LEU*     1.3    75.0    -      -       -      +
     72C  ARG*     1.3    62.5    +      -       -      +
     74C  LEU*     4.7     0.9    -      -       +      -
     75C  GLU*     3.0    26.4    +      -       -      +
     80C  ILE*     3.6    25.8    -      -       +      +
     82C  ARG*     3.5    23.7    +      -       -      +
     94C  VAL*     4.4     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 72 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  ALA      3.0    20.9    +      -       -      +
     69C  ALA*     3.2     8.3    -      -       -      +
     71C  LEU*     1.3    76.5    -      -       -      +
     73C  GLU*     1.3    62.7    +      -       -      +
     75C  GLU*     3.3     6.3    +      -       -      +
     76C  ARG*     3.2    20.7    +      -       -      +
     82C  ARG*     4.7     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 73 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33C  VAL*     4.7     9.4    -      -       -      +
     37C  GLN*     2.5    36.8    +      -       -      +
     69C  ALA      3.0    14.3    +      -       -      +
     70C  LEU*     3.2    13.6    +      -       -      +
     72C  ARG*     1.3    78.9    -      -       -      +
     74C  LEU*     1.3    58.4    +      -       -      +
     76C  ARG*     3.1    21.4    +      -       +      +
     77C  GLY*     3.2    10.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 74 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37C  GLN*     3.8    39.9    -      -       +      +
     40C  VAL*     3.8    29.8    -      -       +      -
     41C  LEU*     3.8    22.4    -      -       +      -
     70C  LEU*     2.7    25.3    +      -       +      +
     71C  LEU*     4.0     0.9    -      -       +      +
     73C  GLU*     1.3    72.1    -      -       -      +
     75C  GLU*     1.3    56.1    +      -       -      +
     77C  GLY      3.7     1.6    +      -       -      +
     78C  GLY      3.2     4.7    +      -       -      -
     79C  LEU*     2.8    60.5    +      -       +      +
     80C  ILE*     3.5    25.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 75 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  LEU      3.0    18.3    +      -       -      +
     72C  ARG*     3.6     6.3    -      -       -      +
     73C  GLU      3.3     0.2    -      -       -      -
     74C  LEU*     1.3    74.1    -      -       -      +
     76C  ARG*     1.3    65.1    +      -       -      +
     78C  GLY*     3.2    10.7    +      -       -      -
     80C  ILE*     3.8    22.2    -      -       +      +
     82C  ARG*     5.2    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 76 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  ARG      3.2    10.9    +      -       -      +
     73C  GLU*     3.1    14.6    +      -       +      +
     75C  GLU*     1.3    80.0    -      -       -      +
     77C  GLY*     1.3    59.8    +      -       -      +
     78C  GLY*     3.0     1.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 77 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73C  GLU      3.2     9.7    +      -       -      -
     74C  LEU      3.7     3.3    +      -       -      -
     75C  GLU      3.4     0.2    -      -       -      -
     76C  ARG*     1.3    77.7    -      -       -      +
     78C  GLY*     1.3    60.3    +      -       -      +
     79C  LEU*     3.4    20.5    +      -       -      +
     99C  GLU*     5.6     1.4    -      -       -      +
----------------------------------------------------------
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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