Contacts of the helix formed by residues 909 - 920 (chain B) in PDB entry 2HRC


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 PRO 909 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    708B  ARG*     6.0     1.6    -      -       -      +
    907B  VAL      3.5     9.8    -      -       -      +
    908B  ASN*     1.3    87.8    -      -       -      +
    910B  VAL*     1.3    62.3    +      -       +      +
    911B  CYS      3.4     0.3    +      -       -      -
    912B  ARG*     3.6    12.9    +      -       +      +
    913B  GLU*     3.4    22.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 910 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    597B  ASP*     3.6     7.9    -      -       -      +
    704B  ASN*     3.8    22.0    -      -       +      +
    707B  TYR*     3.8    17.9    -      -       +      -
    708B  ARG*     3.2    39.0    -      -       -      +
    908B  ASN*     3.0    34.3    +      -       -      +
    909B  PRO*     1.3    78.8    -      -       -      +
    911B  CYS*     1.3    63.0    +      -       -      +
    913B  GLU*     3.2     9.3    +      -       -      +
    914B  THR*     2.9    43.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 911 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    696B  CYS*     5.5     3.8    -      -       -      -
    704B  ASN*     4.4    11.9    -      -       -      -
    902B  SER*     4.5     5.5    +      -       -      +
    906B  CYS*     3.6     9.4    -      -       -      -
    908B  ASN*     3.2    26.4    +      -       -      +
    910B  VAL*     1.3    85.3    -      -       -      +
    912B  ARG*     1.3    57.1    +      -       -      +
    914B  THR*     3.4     2.7    +      -       -      -
    915B  LYS*     2.9    29.7    +      -       -      +
   1502B  FES      2.4    48.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 912 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325A  ARG*     4.6    13.8    +      -       -      +
    902B  SER*     4.6     6.8    +      -       -      +
    908B  ASN      4.4     0.8    +      -       -      +
    909B  PRO*     3.6    11.2    +      -       +      +
    910B  VAL      3.3     0.2    -      -       -      -
    911B  CYS*     1.3    78.0    -      -       -      +
    913B  GLU*     1.3    59.5    +      -       +      +
    915B  LYS*     3.5    19.9    +      -       -      +
    916B  SER*     3.0    37.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 913 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    707B  TYR*     3.0    48.3    +      -       +      -
    708B  ARG*     5.1     3.3    +      -       -      -
    909B  PRO*     3.4    15.7    -      -       -      +
    910B  VAL*     3.2    21.3    +      -       -      +
    912B  ARG*     1.3    75.0    -      -       +      +
    914B  THR*     1.3    60.0    +      -       -      +
    916B  SER*     3.4     6.1    +      -       -      -
    917B  PHE*     2.9    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 914 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    703B  LEU*     3.5    44.2    -      -       +      +
    704B  ASN*     2.7    31.9    +      -       -      +
    707B  TYR*     3.8    13.7    -      -       +      +
    899B  LEU*     6.1     1.3    -      -       +      -
    910B  VAL*     2.9    20.2    +      -       -      +
    911B  CYS      3.6     4.0    -      -       -      -
    913B  GLU*     1.3    74.1    -      -       -      +
    915B  LYS*     1.3    67.3    +      -       -      +
    917B  PHE*     3.1    15.6    +      -       -      +
    918B  PHE*     3.3    15.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 915 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327A  ARG*     5.2     2.6    -      -       -      +
    899B  LEU*     3.2    37.4    -      -       +      +
    900B  THR*     3.4    28.0    +      -       -      +
    902B  SER*     3.7    21.5    +      -       -      +
    911B  CYS      2.9    17.8    +      -       -      +
    912B  ARG*     3.7    24.0    -      -       -      +
    913B  GLU      3.3     0.2    -      -       -      -
    914B  THR*     1.3    77.4    -      -       -      +
    916B  SER*     1.3    65.0    +      -       -      +
    918B  PHE*     3.2     5.2    +      -       -      +
    919B  THR*     2.9    47.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 916 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    912B  ARG*     3.0    23.8    +      -       -      +
    913B  GLU*     3.7     6.7    -      -       -      -
    915B  LYS*     1.3    82.5    -      -       -      +
    917B  PHE*     1.3    66.0    +      -       -      +
    919B  THR*     3.5     9.5    +      -       -      -
    920B  SER*     2.8    36.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 917 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    706B  ILE*     3.9    20.0    -      -       +      -
    707B  TYR*     4.2    25.8    -      +       +      -
    710B  TYR*     3.9    28.9    -      +       +      -
    711B  ASN*     6.0     0.2    -      -       -      -
    717B  PRO*     3.8    23.3    -      -       +      -
    721B  TRP*     3.9    11.9    -      +       -      -
    913B  GLU      2.9    14.5    +      -       -      +
    914B  THR*     3.1    11.6    +      -       -      +
    916B  SER*     1.3    77.1    -      -       -      +
    918B  PHE*     1.3    87.7    +      +       -      +
    920B  SER*     4.3     1.7    -      -       -      -
    921B  GLN*     2.9    47.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 918 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    687B  ALA*     4.2     3.1    -      -       +      -
    703B  LEU*     4.0    29.6    -      -       +      -
    706B  ILE*     4.1    14.6    -      -       +      -
    721B  TRP*     4.4     9.9    -      +       +      -
    722B  SER*     3.9    22.7    -      -       -      -
    723B  THR*     3.7    34.8    -      -       +      -
    894B  LEU*     3.5    21.1    -      -       -      +
    895B  CYS*     4.6     5.8    -      -       +      -
    899B  LEU*     4.7     9.0    -      -       +      -
    914B  THR*     3.3    37.8    +      -       +      -
    915B  LYS      3.2     6.0    +      -       -      +
    916B  SER      3.2     0.4    -      -       -      -
    917B  PHE*     1.3   103.3    -      +       -      +
    919B  THR*     1.3    65.1    +      -       -      +
    920B  SER      3.1     2.1    +      -       -      -
    921B  GLN*     3.3    16.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 919 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    894B  LEU*     3.6    18.2    -      -       -      +
    895B  CYS*     3.9    21.1    -      -       -      -
    900B  THR*     4.1    12.8    -      -       +      -
    915B  LYS*     2.9    37.1    +      -       +      +
    916B  SER*     3.5    11.3    +      -       -      -
    918B  PHE*     1.3    77.0    -      -       -      +
    920B  SER*     1.3    63.5    +      -       -      +
    921B  GLN      3.4     0.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 920 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    916B  SER*     2.8    28.6    +      -       -      -
    917B  PHE*     4.3     2.7    -      -       -      -
    919B  THR*     1.3    81.0    +      -       -      +
    921B  GLN*     1.3    66.4    +      -       -      +
    922B  GLN*     3.5     1.7    +      -       -      -
----------------------------------------------------------
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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