Contacts of the helix formed by residues 772 - 786 (chain B) in PDB entry 1S11


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 TRP 772 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    403A  ASP*     2.6    43.6    +      -       +      -
    406A  LEU*     5.4     6.4    -      -       +      +
    439A  ARG*     4.2     1.3    -      -       -      -
    472A  VAL*     3.4    43.7    -      -       +      -
    473A  LYS*     5.3     5.4    -      -       +      -
    474A  PHE*     5.1    12.3    -      +       +      -
    507A  TYR*     3.2    28.7    +      +       +      +
    508A  MET*     6.2     0.4    -      -       +      -
    766B  ILE*     5.9     2.2    -      -       +      -
    770B  SER*     2.5    11.8    +      -       -      +
    771B  GLY*     1.4    87.8    +      -       -      +
    773B  LYS*     1.4    68.4    +      -       -      +
    774B  ARG*     2.7     3.1    +      -       -      +
    775B  GLN*     2.7    60.6    +      -       +      +
    776B  VAL*     4.3    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 773 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    524A  ASP*     2.4    47.7    +      -       +      +
    525A  PHE      5.1     9.4    -      -       -      +
    526A  SER*     5.2     2.3    -      -       -      -
    766B  ILE*     3.9    28.4    -      -       +      +
    768B  LYS*     4.9     0.4    -      -       -      +
    769B  ASP*     2.2    42.1    +      -       -      +
    770B  SER      3.8    13.1    +      -       -      +
    772B  TRP*     1.4    71.4    -      -       -      +
    774B  ARG*     1.4    69.3    +      -       +      +
    776B  VAL*     2.9     6.7    +      -       -      +
    777B  ASP*     2.7    23.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 774 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    527A  VAL*     5.9     0.2    -      -       -      +
    772B  TRP      2.7     5.8    +      -       -      +
    773B  LYS*     1.4    79.4    -      -       +      +
    775B  GLN*     1.3    50.4    +      -       +      +
    777B  ASP*     2.4    38.0    +      -       -      -
    778B  LEU*     2.6    64.8    +      -       +      +
    781B  LEU*     3.5    15.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 775 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    472A  VAL*     4.0    11.6    -      -       +      +
    473A  LYS*     5.7     4.0    +      -       -      +
    771B  GLY      4.8     2.6    +      -       -      -
    772B  TRP*     2.7    67.0    +      -       +      +
    774B  ARG*     1.3    71.7    -      -       +      +
    776B  VAL*     1.4    56.5    +      -       -      +
    778B  LEU*     3.2    15.4    +      -       +      +
    779B  ALA*     2.7    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 776 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468A  ILE*     4.4    14.1    -      -       +      -
    472A  VAL*     3.9    21.5    -      -       +      -
    474A  PHE*     5.1     2.2    -      -       +      -
    508A  MET*     3.7    29.8    -      -       +      -
    526A  SER*     4.5     9.2    -      -       -      +
    764B  ILE*     4.4    14.8    -      -       +      -
    766B  ILE*     4.0    21.8    -      -       +      -
    772B  TRP*     3.7    10.5    +      -       +      -
    773B  LYS      2.9    15.9    +      -       -      +
    775B  GLN*     1.4    74.4    -      -       -      +
    777B  ASP*     1.3    52.9    +      -       -      +
    779B  ALA*     3.1     2.3    +      -       -      +
    780B  ILE*     2.6    36.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 777 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    526A  SER*     3.3    17.7    -      -       -      -
    527A  VAL*     2.6    45.2    +      -       -      +
    773B  LYS*     2.7    17.6    +      -       +      +
    774B  ARG*     2.4    47.0    +      -       -      +
    776B  VAL*     1.3    72.3    -      -       -      +
    778B  LEU*     1.4    52.4    +      -       -      +
    780B  ILE*     3.1     2.5    +      -       -      +
    781B  LEU*     2.6    43.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 778 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    774B  ARG*     2.6    61.5    +      -       +      +
    775B  GLN*     3.6    17.0    -      -       +      +
    777B  ASP*     1.4    70.1    -      -       -      +
    779B  ALA*     1.3    51.2    +      -       -      +
    781B  LEU*     3.1    10.8    +      -       +      +
    782B  GLN*     2.6    35.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 779 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468A  ILE*     4.0    12.3    -      -       +      +
    471A  SER*     4.0    21.1    -      -       -      -
    472A  VAL*     3.4    33.9    -      -       +      +
    775B  GLN      2.7    11.4    +      -       -      +
    776B  VAL      3.6     2.9    -      -       -      +
    778B  LEU*     1.3    71.9    -      -       -      +
    780B  ILE*     1.3    53.0    +      -       -      +
    782B  GLN*     3.0     9.8    +      -       -      +
    783B  LEU*     2.7    36.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 780 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464A  ILE*     6.1     0.4    -      -       +      -
    468A  ILE*     3.7    16.9    -      -       +      +
    526A  SER*     3.5    20.4    -      -       -      +
    527A  VAL*     3.4    40.2    -      -       +      +
    528A  PRO      4.6     2.0    -      -       -      +
    529A  PHE*     3.9    27.4    -      -       +      +
    764B  ILE*     3.8    33.0    -      -       +      +
    776B  VAL*     2.6    20.3    +      -       +      +
    777B  ASP*     3.5    13.0    -      -       -      +
    779B  ALA*     1.3    70.7    -      -       -      +
    781B  LEU*     1.4    65.7    +      -       -      +
    783B  LEU*     3.2     3.7    +      -       -      +
    784B  PHE*     3.0    22.7    +      -       -      +
    789B  MET*     5.0     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 781 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    527A  VAL*     3.8    29.4    -      -       +      -
    774B  ARG*     3.5    18.4    -      -       -      +
    777B  ASP*     2.6    44.8    +      -       -      +
    778B  LEU*     3.5    12.1    -      -       +      +
    780B  ILE*     1.4    73.1    -      -       -      +
    782B  GLN*     1.4    51.5    +      -       -      +
    784B  PHE*     3.1     8.4    +      -       +      +
    785B  GLY*     2.6    35.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 782 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    471A  SER*     2.6    34.0    +      -       -      -
    778B  LEU      2.6    17.1    +      -       -      +
    779B  ALA*     3.3     7.8    -      -       -      +
    781B  LEU*     1.4    70.8    -      -       -      +
    783B  LEU*     1.4    67.8    +      -       -      +
    785B  GLY*     2.9     2.6    +      -       -      +
    786B  ASP*     2.5    66.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 783 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464A  ILE*     4.2    10.3    -      -       +      +
    467A  LYS*     3.7    33.0    -      -       +      -
    468A  ILE*     3.5    30.7    -      -       +      +
    471A  SER*     4.1    10.1    -      -       -      +
    779B  ALA      2.7    24.2    +      -       -      +
    780B  ILE*     3.2     4.9    +      -       +      +
    782B  GLN*     1.4    92.5    -      -       -      +
    784B  PHE*     1.4    58.9    +      -       -      +
    786B  ASP*     4.9     0.4    -      -       +      -
    788B  GLU*     3.2    25.3    -      -       +      +
    789B  MET*     2.7    49.1    +      -       -      -
    792B  LEU*     4.9     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 784 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    527A  VAL*     6.4     1.3    -      -       +      -
    528A  PRO      5.9     2.0    -      -       -      +
    529A  PHE*     4.7     8.1    -      -       -      +
    530A  ILE*     6.0     2.7    -      -       +      -
    780B  ILE      3.0    13.2    +      -       -      +
    781B  LEU*     3.7     8.5    -      -       +      +
    783B  LEU*     1.4    74.5    -      -       -      +
    785B  GLY*     1.4    58.9    +      -       -      +
    787B  GLY*     2.6    29.9    +      -       -      -
    789B  MET*     3.7    13.8    -      -       +      +
    790B  GLU*     3.4    35.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 785 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    781B  LEU      2.6    19.2    +      -       -      -
    782B  GLN*     2.9     4.0    +      -       -      -
    784B  PHE*     1.4    77.0    -      -       -      +
    786B  ASP*     1.3    59.2    +      -       -      -
    787B  GLY      3.1     5.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 786 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    782B  GLN*     2.5    63.7    +      -       +      +
    785B  GLY*     1.3    71.3    -      -       -      -
    787B  GLY*     1.4    48.4    +      -       -      +
    788B  GLU*     2.5    32.7    +      -       +      +
----------------------------------------------------------
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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