Contacts of the helix formed by residues 846 - 860 (chain A) in PDB entry 1PD0


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 SER 846 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    822A  PHE*     6.4     1.8    -      -       -      -
    823A  ASP*     3.0    36.7    +      -       -      -
    843A  VAL*     3.3    29.2    +      -       -      +
    844A  GLU      3.2     1.2    -      -       -      -
    845A  ASN*     1.3    78.2    -      -       -      +
    847A  GLU*     1.3    63.2    +      -       -      +
    848A  PHE      3.7     1.6    +      -       -      -
    849A  ASN*     3.1    22.0    +      -       -      +
    850A  GLN*     3.2    11.6    +      -       -      +
    853A  ARG*     5.4     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 847 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    768A  LEU*     5.5     7.1    -      -       +      +
    845A  ASN      3.8     3.0    +      -       -      -
    846A  SER*     1.3    73.1    -      -       -      +
    848A  PHE*     1.3    71.0    +      -       -      +
    850A  GLN*     3.2    10.0    +      -       -      +
    851A  ARG*     2.9    65.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 848 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    759A  LEU      3.7    25.6    -      -       -      -
    760A  HIS*     4.6     5.4    -      -       -      -
    762A  MET*     4.2    12.1    -      -       +      -
    799A  LEU*     4.1     6.7    -      -       +      -
    820A  LEU*     3.6    29.2    -      -       +      -
    823A  ASP*     3.5    36.3    -      -       +      +
    824A  VAL*     3.6    17.7    -      -       +      -
    846A  SER*     3.0     1.7    -      -       -      +
    847A  GLU*     1.3    88.4    -      -       +      +
    849A  ASN*     1.3    59.2    +      -       -      +
    851A  ARG*     3.1    25.1    +      -       -      +
    852A  VAL*     2.9    43.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 849 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    823A  ASP      3.0    18.3    +      -       -      +
    824A  VAL*     3.1    23.5    +      -       -      +
    840A  ILE*     4.0     5.3    -      -       -      +
    841A  PRO      2.7    22.4    +      -       -      -
    843A  VAL*     3.2    23.1    +      -       +      +
    846A  SER*     3.1    20.9    +      -       -      +
    848A  PHE*     1.3    77.7    -      -       -      +
    850A  GLN*     1.3    58.3    +      -       -      +
    852A  VAL*     3.4     7.0    +      -       -      +
    853A  ARG*     2.5    60.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 850 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    768A  LEU*     5.9     2.9    -      -       +      -
    846A  SER      3.2     8.9    +      -       -      +
    847A  GLU*     3.4    11.9    -      -       -      +
    848A  PHE      3.2     0.4    -      -       -      -
    849A  ASN*     1.3    78.3    +      -       -      +
    851A  ARG*     1.3    60.9    +      -       +      +
    853A  ARG*     2.6    46.1    +      -       -      +
    854A  ASN*     2.8    56.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 851 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    762A  MET*     4.1    20.0    +      -       -      +
    763A  ALA      2.7    31.1    +      -       -      -
    764A  ASP*     3.3    22.3    +      -       -      +
    766A  ALA      2.9    18.9    +      -       -      -
    767A  GLY*     3.4    26.4    -      -       -      +
    768A  LEU*     4.1    15.2    -      -       +      +
    847A  GLU*     2.9    51.5    +      -       +      +
    848A  PHE*     3.1    24.4    +      -       +      +
    850A  GLN*     1.3    78.3    -      -       +      +
    852A  VAL*     1.3    61.3    +      -       -      +
    854A  ASN*     3.2     2.6    +      -       -      +
    855A  ILE*     3.0    30.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 852 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    759A  LEU*     4.2    25.1    -      -       +      -
    762A  MET*     4.6     3.8    -      -       +      -
    799A  LEU*     4.5     3.6    -      -       +      -
    810A  LEU*     4.9     4.3    -      -       +      -
    824A  VAL*     4.9     7.2    -      -       +      -
    840A  ILE*     3.4    34.8    -      -       +      -
    848A  PHE*     2.9    49.6    +      -       +      +
    849A  ASN*     3.8     6.7    -      -       -      +
    851A  ARG*     1.3    74.2    -      -       -      +
    853A  ARG*     1.3    63.4    +      -       -      +
    855A  ILE*     3.4     8.5    +      -       -      +
    856A  ILE*     3.1    25.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 853 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    840A  ILE*     4.1    26.9    -      -       +      +
    841A  PRO      3.9    12.6    -      -       -      -
    842A  VAL*     4.0    32.9    -      -       -      +
    843A  VAL      5.2     2.0    +      -       -      +
    846A  SER      5.4     0.4    +      -       -      -
    849A  ASN*     2.5    35.2    +      -       -      +
    850A  GLN*     2.6    49.3    +      -       -      +
    852A  VAL*     1.3    78.1    -      -       -      +
    854A  ASN*     1.3    61.4    +      -       -      +
    856A  ILE*     3.4     6.8    +      -       -      +
    857A  ASN*     2.8    42.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 854 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    767A  GLY      2.6    29.5    +      -       -      +
    768A  LEU*     4.6     6.1    -      -       -      +
    769A  PRO*     5.1     4.7    -      -       -      +
    781A  ILE*     3.6    26.1    -      -       +      +
    850A  GLN*     2.8    55.6    +      -       -      +
    851A  ARG*     3.2     2.8    +      -       -      +
    853A  ARG*     1.3    73.1    -      -       -      +
    855A  ILE*     1.3    58.2    +      -       -      +
    857A  ASN*     3.1     9.8    +      -       -      +
    858A  GLN*     2.8    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 855 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    757A  TYR*     5.2     2.0    -      -       +      -
    759A  LEU*     4.0     6.5    -      -       +      -
    762A  MET*     3.5    40.8    -      -       +      -
    767A  GLY*     3.8    14.8    -      -       -      +
    781A  ILE*     4.3     1.5    -      -       -      +
    782A  VAL      4.4     5.4    -      -       -      +
    783A  LEU*     3.7    17.5    -      -       +      -
    784A  PRO*     3.8    21.1    -      -       +      -
    801A  LEU*     3.6    24.9    -      -       +      -
    851A  ARG      3.0    17.2    +      -       -      +
    852A  VAL*     3.7     7.4    -      -       -      +
    853A  ARG      3.4     0.2    -      -       -      -
    854A  ASN*     1.3    73.9    -      -       -      +
    856A  ILE*     1.3    64.9    +      -       -      +
    858A  GLN*     3.1     8.1    +      -       -      +
    859A  LEU*     2.9    26.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 856 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    801A  LEU*     4.3    23.3    -      -       +      -
    808A  LEU*     4.1    10.9    -      -       +      +
    810A  LEU*     5.4     0.2    -      -       +      -
    839A  GLU*     5.2     0.9    -      -       -      +
    840A  ILE*     3.2    37.9    -      -       +      +
    852A  VAL*     3.1    19.1    +      -       +      +
    853A  ARG*     3.7     6.3    -      -       -      +
    855A  ILE*     1.3    77.0    -      -       -      +
    857A  ASN*     1.3    67.7    +      -       -      +
    859A  LEU*     3.3     9.9    +      -       -      +
    860A  ARG*     3.2    50.9    +      -       -      +
    871A  LEU*     4.0    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 857 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    781A  ILE*     5.7     3.4    -      -       +      -
    853A  ARG*     2.8    38.4    +      -       -      +
    854A  ASN*     3.7     9.6    +      -       -      +
    856A  ILE*     1.3    82.8    -      -       -      +
    858A  GLN*     1.3    62.3    +      -       -      +
    860A  ARG*     3.1    28.9    +      -       -      +
    861A  ASN*     3.5    10.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 858 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    779A  GLY      4.2     0.9    -      -       -      +
    780A  THR*     3.5    16.5    -      -       -      +
    781A  ILE*     2.8    58.4    +      -       +      +
    783A  LEU*     4.0    19.1    -      -       +      -
    854A  ASN      2.8    13.7    +      -       -      +
    855A  ILE      3.4     9.0    -      -       -      +
    857A  ASN*     1.3    73.6    -      -       -      +
    859A  LEU*     1.3    62.4    +      -       -      +
    860A  ARG      2.9     4.7    +      -       -      -
    861A  ASN*     3.0    42.1    +      -       -      +
    862A  HIS*     5.0     1.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 859 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    750A  LYS*     5.3     0.2    +      -       -      -
    757A  TYR*     3.5    37.7    -      -       +      +
    783A  LEU*     3.9    19.5    -      -       +      -
    801A  LEU*     3.5    32.8    -      -       +      -
    803A  ASP*     3.8    17.5    -      -       +      +
    808A  LEU*     4.1    23.6    -      -       +      -
    855A  ILE*     2.9    20.1    +      -       +      +
    856A  ILE*     3.8     5.8    -      -       -      +
    858A  GLN*     1.3    75.8    -      -       -      +
    860A  ARG*     1.3    53.8    +      -       -      +
    861A  ASN      3.5     0.2    -      -       -      -
    862A  HIS*     2.7    30.3    +      -       -      -
    869A  GLN*     3.4    10.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 860 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    546A  LYS*     4.5     7.6    +      -       -      -
    808A  LEU*     4.3     7.3    -      -       +      +
    839A  GLU*     2.7    43.4    +      -       -      -
    856A  ILE*     3.2    33.4    +      -       -      +
    857A  ASN*     3.4    21.1    +      -       -      +
    858A  GLN      2.9     1.8    -      -       -      -
    859A  LEU*     1.3    79.9    -      -       -      +
    861A  ASN*     1.3    59.6    +      -       -      +
    862A  HIS*     3.8     9.8    +      -       -      -
    867A  THR      4.4     8.3    -      -       -      +
    868A  TYR*     3.2    38.5    +      -       +      -
    869A  GLN*     3.0    41.3    +      -       +      +
    870A  SER*     3.9     1.4    -      -       -      +
    871A  LEU*     3.6    15.4    -      -       -      +
----------------------------------------------------------
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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