Contacts of the helix formed by residues 166 - 180 (chain A) in PDB entry 5L9Y


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 166 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165A  TYR*     1.3    76.4    -      -       -      +
    167A  ARG*     1.3    64.6    +      -       -      +
    168A  SER*     3.4    11.3    -      -       -      -
    169A  SER*     3.1    35.7    +      -       -      -
    170A  VAL*     3.2    15.4    +      -       -      +
    104B  PHE*     4.1     3.4    -      -       -      -
    105B  ASP      4.1     6.7    -      -       -      -
    108B  LYS*     3.9    35.1    -      -       -      +
    109B  GLU*     4.0     9.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  SER*     1.3    72.8    -      -       -      +
    168A  SER*     1.3    62.5    +      -       -      +
    170A  VAL*     3.3     4.5    +      -       -      +
    171A  ASP*     3.0    29.5    +      -       -      +
    210A  TYR*     3.5    45.8    +      -       +      +
    214A  LYS*     5.8     1.8    -      -       -      +
    104B  PHE*     3.6    28.2    -      -       +      -
    105B  ASP      4.5     2.0    +      -       -      -
    106B  PRO*     3.1    31.1    +      -       +      +
    107B  LYS      5.2     1.8    +      -       -      -
    108B  LYS      4.5    12.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  SER*     3.4    10.7    -      -       -      -
    167A  ARG*     1.3    77.5    -      -       -      +
    169A  SER*     1.3    55.8    +      -       -      +
    171A  ASP*     3.1    13.8    +      -       -      +
    172A  VAL*     3.0    31.2    +      -       -      +
     72B  LEU*     4.4    17.8    -      -       -      +
    109B  GLU*     4.0    15.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165A  TYR*     4.3    14.6    -      -       -      +
    166A  SER*     3.1    27.1    +      -       -      -
    168A  SER*     1.3    75.0    +      -       -      +
    170A  VAL*     1.3    65.1    +      -       -      +
    172A  VAL*     3.4     3.1    +      -       -      -
    173A  LEU*     3.1    20.7    +      -       -      +
     66B  ALA*     4.6    11.7    +      -       -      -
     71B  PHE*     3.5    33.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165A  TYR*     4.0    16.6    -      -       +      -
    166A  SER      3.2    13.3    +      -       -      +
    167A  ARG      3.4     7.9    -      -       -      +
    169A  SER*     1.3    76.2    -      -       -      +
    171A  ASP*     1.3    59.2    +      -       -      +
    173A  LEU*     3.3    10.2    +      -       +      +
    174A  TYR*     2.9    28.7    +      -       +      +
    184A  LEU*     5.7     0.3    -      -       -      +
    186A  PHE*     5.0     9.9    -      -       +      -
    207A  LEU*     3.8    23.3    -      -       +      -
    210A  TYR*     4.1    13.2    -      -       +      -
    211A  CYS*     4.3    13.9    -      -       -      -
    216A  TYR*     4.0    21.5    -      -       +      -
    218A  ILE*     5.5     3.1    -      -       +      -
    104B  PHE*     4.3     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  ARG*     3.0    19.7    +      -       -      +
    168A  SER*     3.1    10.6    +      -       -      +
    170A  VAL*     1.3    73.5    -      -       -      +
    172A  VAL*     1.3    58.5    +      -       +      +
    174A  TYR*     4.1     0.3    -      -       -      +
    175A  THR*     2.5    39.7    +      -       -      +
    210A  TYR*     2.6    26.5    +      -       -      -
    214A  LYS*     4.2     8.0    +      -       -      -
    216A  TYR*     2.5    32.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168A  SER*     3.0    19.1    +      -       -      +
    169A  SER*     3.7     7.9    -      -       -      +
    170A  VAL      3.3     0.2    -      -       -      -
    171A  ASP*     1.3    76.2    -      -       +      +
    173A  LEU*     1.3    60.0    +      -       -      +
    175A  THR*     3.6     4.5    -      -       -      -
    176A  PHE*     2.9    30.0    +      -       -      +
     71B  PHE*     3.9    27.4    -      -       +      +
     72B  LEU*     3.8    38.4    -      -       +      +
     75B  LEU*     3.6    27.3    -      -       +      +
     81B  ARG*     4.8     2.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169A  SER      3.1    11.3    +      -       -      +
    170A  VAL*     3.5    11.4    -      -       +      +
    172A  VAL*     1.3    81.2    -      -       -      +
    174A  TYR*     1.3    61.5    +      -       -      +
    176A  PHE*     3.4     2.9    +      -       -      +
    177A  ALA*     3.1    22.3    +      -       -      +
    184A  LEU*     4.0    22.7    -      -       +      -
    186A  PHE*     3.9    16.8    -      -       +      -
     61B  ILE*     5.4     4.9    -      -       +      -
     71B  PHE*     4.4     5.6    -      -       +      -
     75B  LEU*     4.1    20.2    -      -       +      -
     92B  LEU*     4.6     9.9    -      -       +      -
     94B  PHE*     3.4    59.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 174 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  VAL*     2.9    20.2    +      -       +      +
    171A  ASP      4.1     2.7    -      -       -      +
    173A  LEU*     1.3    73.2    -      -       -      +
    175A  THR*     1.3    57.2    +      -       -      +
    177A  ALA*     3.3     3.8    +      -       +      +
    178A  ASN*     2.8    63.2    +      -       +      +
    184A  LEU*     4.2    16.1    -      -       +      +
    215A  GLY      4.3     3.1    +      -       -      -
    216A  TYR*     3.4    67.7    -      +       +      -
    217A  ASN*     3.2    36.5    +      -       -      +
    218A  ILE*     4.0    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 175 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171A  ASP*     2.5    27.2    +      -       -      +
    172A  VAL*     3.6     4.9    -      -       -      -
    174A  TYR*     1.3    78.0    -      -       -      +
    176A  PHE*     1.3    60.7    +      -       -      +
    178A  ASN*     4.5     3.1    -      -       -      +
    179A  CYS*     2.9    45.2    +      -       -      +
    216A  TYR*     5.3     1.4    +      -       -      -
     81B  ARG*     3.6    20.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 176 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  VAL      2.9    17.1    +      -       -      +
    173A  LEU      3.6     3.8    -      -       -      +
    175A  THR*     1.3    77.5    -      -       -      +
    177A  ALA*     1.3    63.8    +      -       -      +
    179A  CYS*     3.9     0.9    -      -       -      +
    180A  SER*     2.9    33.5    +      -       -      -
    182A  LEU*     4.4    10.1    -      -       +      -
    385A  PHE*     3.9    19.7    -      +       -      -
     61B  ILE*     5.0     3.4    -      -       +      -
     75B  LEU*     3.3    47.3    -      -       +      +
     80B  LEU*     4.1    23.6    -      -       +      -
     81B  ARG*     3.9    28.0    -      -       +      +
     84B  ALA*     3.8    19.7    -      -       +      -
     92B  LEU*     3.8    30.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 177 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173A  LEU      3.1    10.8    +      -       -      +
    174A  TYR*     3.7     7.6    -      -       +      +
    176A  PHE*     1.3    83.8    -      -       -      +
    178A  ASN*     1.3    62.3    +      -       -      +
    180A  SER*     3.2     7.2    +      -       -      -
    182A  LEU*     3.0    46.2    +      -       +      +
    184A  LEU*     4.1    20.4    -      -       +      +
     92B  LEU*     3.9    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  TYR*     2.8    51.9    +      -       +      +
    175A  THR*     4.1     3.4    -      -       -      +
    177A  ALA*     1.3    74.9    -      -       -      +
    179A  CYS*     1.3    67.2    +      -       -      +
    180A  SER      3.3     0.9    +      -       -      -
    181A  GLY*     3.4     9.9    +      -       -      -
    182A  LEU      4.3     3.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175A  THR*     2.9    34.9    +      -       -      +
    176A  PHE      4.2     1.8    -      -       -      +
    178A  ASN*     1.3    78.9    -      -       -      +
    180A  SER*     1.3    59.0    +      -       -      +
    181A  GLY      3.5     0.4    +      -       -      -
     81B  ARG*     3.7    26.9    -      -       -      +
     85B  ARG*     3.1    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176A  PHE*     2.9    21.7    +      -       -      -
    177A  ALA      3.2     3.5    +      -       -      -
    179A  CYS*     1.3    78.4    -      -       -      +
    181A  GLY*     1.3    60.0    +      -       -      +
    182A  LEU*     3.3    13.2    +      -       -      +
     81B  ARG*     3.7    20.1    +      -       -      +
     84B  ALA*     3.4    31.3    -      -       -      +
     85B  ARG*     3.4    29.7    -      -       -      +
     88B  SER*     3.7     6.6    -      -       -      -
----------------------------------------------------------
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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