Contacts of the helix formed by residues 807 - 819 (chain D) in PDB entry 1SO2


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 807 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    784D  ILE*     3.5    38.6    -      -       +      -
    785D  ALA      3.8     8.3    -      -       -      +
    786D  TYR*     4.2    11.0    -      -       +      +
    805D  ASN      4.4     0.4    -      -       -      +
    806D  ILE*     1.3    83.9    -      -       -      +
    808D  ALA*     1.3    66.2    -      -       -      +
    809D  LEU*     4.5     7.4    -      -       +      +
    810D  GLU*     2.9    52.0    +      -       +      +
    811D  LEU      3.0    11.3    +      -       -      -
    925D  ARG*     4.0    10.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 808 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    709D  LEU*     4.0     1.3    -      -       +      +
    712D  ILE*     4.2     4.0    -      -       +      -
    713D  PHE*     3.6    22.2    -      -       +      -
    785D  ALA      2.8    25.2    +      -       -      +
    786D  TYR*     4.0     2.2    -      -       -      +
    787D  ILE*     3.5    33.2    -      -       +      +
    806D  ILE      3.6     2.1    +      -       -      -
    807D  PRO*     1.3    70.0    -      -       -      +
    809D  LEU*     1.3    54.1    +      -       -      +
    811D  LEU*     4.0     2.8    -      -       -      +
    812D  MET*     2.5    40.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 809 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    713D  PHE*     3.6    25.1    -      -       +      -
    785D  ALA      4.6     0.4    +      -       -      -
    807D  PRO*     3.2     6.2    -      -       +      +
    808D  ALA*     1.3    78.7    -      -       -      +
    810D  GLU*     1.3    58.0    +      -       +      +
    812D  MET*     3.7     6.8    -      -       +      +
    813D  ALA*     2.9    26.7    +      -       -      +
    874D  LEU*     3.9    23.3    -      -       +      -
    878D  GLU*     4.2    29.6    -      -       +      +
    881D  ARG*     3.8    33.7    -      -       +      +
    882D  PHE*     3.7    26.4    -      -       +      +
    885D  LEU*     4.7     3.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 810 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    806D  ILE*     3.3    12.9    -      -       +      +
    807D  PRO*     2.9    29.3    +      -       +      +
    809D  LEU*     1.3    77.3    -      -       +      +
    811D  LEU*     1.3    64.1    +      -       -      +
    813D  ALA*     2.9    18.2    +      -       -      +
    814D  LEU*     3.2     7.4    +      -       -      +
    881D  ARG*     3.0    30.1    +      -       -      +
    885D  LEU*     3.9    16.6    -      -       +      -
    922D  GLU*     5.4     0.4    -      -       -      -
    925D  ARG*     2.7    58.1    +      -       -      +
    926D  LEU      6.0     0.2    -      -       -      -
    929D  CYS*     5.1     9.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 811 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    753D  THR*     4.1    28.5    -      -       +      -
    754D  THR*     5.4     0.2    -      -       +      -
    787D  ILE*     5.2    11.0    -      -       +      -
    803D  SER*     3.6    36.8    -      -       -      +
    806D  ILE*     3.2    50.7    -      -       +      +
    807D  PRO      3.0     8.4    +      -       -      +
    808D  ALA*     4.0     4.7    -      -       -      +
    810D  GLU*     1.3    75.7    -      -       -      +
    812D  MET*     1.3    64.2    +      -       -      +
    814D  LEU*     3.2    12.5    +      -       +      +
    815D  TYR*     3.1    44.0    +      -       +      +
    929D  CYS*     4.7     2.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 812 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    704D  PHE*     4.2    17.9    -      -       +      -
    709D  LEU*     3.7    27.7    -      -       +      +
    713D  PHE*     3.6    45.3    -      -       +      -
    715D  ILE*     4.4    10.8    -      -       -      -
    808D  ALA      2.5    24.2    +      -       -      +
    809D  LEU*     3.7    10.1    -      -       +      +
    811D  LEU*     1.3    73.8    -      -       -      +
    813D  ALA*     1.3    61.8    +      -       -      +
    815D  TYR*     3.9     2.7    -      -       -      +
    816D  VAL*     2.9    26.5    +      -       +      +
    870D  PHE*     6.0     0.9    -      -       -      -
    871D  LEU*     4.3    15.0    -      -       +      -
    874D  LEU*     5.1     0.4    -      -       +      -
    882D  PHE*     3.7    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 813 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    809D  LEU      2.9    13.8    +      -       -      +
    810D  GLU      2.9    10.9    +      -       -      +
    812D  MET*     1.3    76.3    -      -       -      +
    814D  LEU*     1.3    64.6    +      -       -      +
    816D  VAL*     2.8    15.2    +      -       -      +
    817D  ALA*     2.9    15.3    +      -       -      +
    882D  PHE*     3.4    18.4    -      -       +      -
    885D  LEU*     3.6    35.2    -      -       +      +
    886D  VAL*     3.9     8.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 814 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    749D  VAL*     4.0    20.0    -      -       +      -
    753D  THR*     3.8    28.5    -      -       +      -
    810D  GLU      3.2     6.3    +      -       -      +
    811D  LEU*     3.2    17.4    +      -       +      +
    813D  ALA*     1.3    77.9    -      -       -      +
    815D  TYR*     1.3    60.3    +      -       +      +
    817D  ALA*     3.2     6.5    +      -       -      +
    818D  ALA*     3.0    30.0    +      -       -      +
    889D  ALA*     4.8     8.3    -      -       +      -
    929D  CYS*     3.6    39.5    -      -       +      +
    932D  CYS*     4.2     9.2    -      -       +      -
    933D  ILE*     3.8    24.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 815 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700D  MET*     3.6     7.6    -      -       -      +
    703D  LEU*     5.5     2.2    -      -       +      -
    704D  PHE*     3.9    22.2    -      +       +      -
    707D  THR*     4.4     9.8    -      -       +      +
    709D  LEU*     3.9    24.9    -      -       +      -
    746D  LEU*     4.1    15.4    -      -       +      +
    749D  VAL*     3.9    14.6    -      -       +      -
    750D  TRP*     3.8    32.3    -      +       -      -
    753D  THR*     2.4    33.0    +      -       -      -
    754D  THR*     3.5    13.0    -      -       -      +
    787D  ILE*     5.9     2.3    -      -       +      +
    811D  LEU*     3.1    31.9    +      -       +      +
    812D  MET      3.9     3.1    -      -       -      +
    814D  LEU*     1.3    84.4    -      -       +      +
    816D  VAL*     1.3    63.2    +      -       -      +
    818D  ALA*     3.7     3.8    +      -       -      +
    819D  ALA*     3.2    21.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 816 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700D  MET*     5.1     1.8    -      -       -      -
    704D  PHE*     4.2    12.8    -      -       +      -
    724D  PHE*     4.7    16.4    -      -       +      -
    812D  MET*     2.9    24.4    +      -       +      +
    813D  ALA      2.8     7.2    +      -       -      +
    815D  TYR*     1.3    78.9    -      -       -      +
    817D  ALA*     1.3    52.9    +      -       -      +
    819D  ALA*     3.3     8.9    +      -       -      +
    820D  MET*     2.8    57.2    +      -       +      +
    859D  TRP*     5.5     2.0    -      -       +      -
    870D  PHE*     5.4     9.4    -      -       +      -
    882D  PHE*     3.5    23.6    -      -       +      -
    886D  VAL*     4.1     9.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 817 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    813D  ALA      2.9    10.6    +      -       -      +
    814D  LEU      3.2     7.6    +      -       -      +
    816D  VAL*     1.3    72.7    -      -       -      +
    818D  ALA*     1.3    55.3    +      -       -      +
    819D  ALA      3.0     1.1    -      -       -      -
    820D  MET*     2.6    30.1    +      -       -      -
    821D  HIS*     2.6    22.7    +      -       -      +
    886D  VAL*     3.9     9.4    -      -       -      +
    889D  ALA*     3.5    31.2    -      -       +      -
    890D  ILE*     3.9    14.8    -      -       +      -
    933D  ILE*     4.2     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 818 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    742D  ALA*     4.1    10.0    -      -       -      +
    745D  VAL*     4.2     9.9    -      -       +      -
    746D  LEU*     3.8    30.1    -      -       -      +
    749D  VAL*     4.1    11.0    -      -       +      -
    814D  LEU      3.0    16.1    +      -       -      +
    815D  TYR      3.8     4.3    -      -       -      +
    817D  ALA*     1.3    75.8    -      -       -      +
    819D  ALA*     1.3    63.5    +      -       -      +
    820D  MET      3.0     1.7    +      -       -      -
    821D  HIS*     3.1    25.0    +      -       -      -
    933D  ILE*     3.9    14.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 819 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    696D  LEU*     3.8    23.9    -      -       +      +
    700D  MET*     3.5    28.9    -      -       +      -
    724D  PHE*     4.2    12.6    -      -       +      -
    727D  LEU*     3.1    16.9    -      -       -      +
    731D  TYR*     3.6     9.7    +      -       -      -
    742D  ALA*     4.8     0.2    -      -       -      -
    746D  LEU*     4.9     1.1    -      -       +      -
    815D  TYR      3.2    11.7    +      -       -      +
    816D  VAL      3.4    10.8    -      -       -      +
    817D  ALA      3.0     1.0    -      -       -      -
    818D  ALA*     1.3    81.3    -      -       -      +
    820D  MET*     1.3    57.3    +      -       -      +
----------------------------------------------------------
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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