Contacts of the helix formed by residues 169 - 182 (chain P) in PDB entry 5A31


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 GLY 169 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168P  ASP*     1.3    78.5    +      -       -      +
    170P  PHE*     1.3    67.4    +      -       -      -
    172P  LEU*     3.2    19.7    +      -       -      +
    173P  TYR*     3.2     9.6    +      -       -      +
    195P  ALA*     4.4     6.2    -      -       -      +
    198P  VAL*     3.9     9.9    -      -       -      +
    199P  LEU*     3.8    31.6    -      -       -      -
    202P  HIS*     6.0     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 170 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39P  ILE*     5.1     2.5    -      -       +      -
     42P  LEU*     4.0    28.7    -      -       +      -
     43P  THR*     3.9    22.9    -      -       +      -
     46P  ARG*     3.5    49.4    -      -       +      -
     48P  LEU*     4.1    15.5    -      -       +      -
    116P  PHE*     3.7    26.9    -      +       +      -
    168P  ASP      3.1     3.7    +      -       -      +
    169P  GLY*     1.3    71.2    -      -       -      -
    171P  GLY*     1.3    56.1    +      -       -      +
    173P  TYR*     2.6    30.4    +      -       -      +
    174P  LEU      2.7    10.9    +      -       -      -
    199P  LEU*     3.9    24.0    -      -       +      -
    202P  HIS*     4.2    17.0    -      +       +      -
----------------------------------------------------------
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Residues in contact with GLY 171 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115P  TYR*     6.3     0.2    -      -       -      -
    116P  PHE*     3.8    16.3    -      -       -      +
    158P  LEU*     4.8     1.8    -      -       -      +
    167P  LEU*     3.4    29.0    -      -       -      +
    168P  ASP      3.1     9.8    +      -       -      -
    170P  PHE*     1.3    78.4    -      -       -      +
    172P  LEU*     1.3    50.8    +      -       -      +
    174P  LEU*     3.0     5.0    +      -       -      +
    175P  TYR*     2.8    34.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 172 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162P  HIS*     4.2    22.2    -      -       +      +
    167P  LEU*     3.5    41.7    -      -       +      +
    168P  ASP*     4.0     7.6    -      -       -      -
    169P  GLY      3.2    13.0    +      -       -      +
    170P  PHE      3.1     0.2    -      -       -      -
    171P  GLY*     1.3    74.1    -      -       -      +
    173P  TYR*     1.3    58.1    +      -       -      +
    175P  TYR*     3.2     3.3    +      -       -      +
    176P  GLY*     2.8    25.3    +      -       -      -
    191P  VAL*     3.4    31.6    -      -       +      +
    192P  PHE*     4.9     0.2    -      -       -      -
    194P  GLU*     3.7    28.0    -      -       +      -
    195P  ALA*     3.8    19.2    -      -       +      +
    198P  VAL*     5.3     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 173 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1M  MET*     3.3    28.5    +      -       -      +
      2M  ASP      3.7     5.8    +      -       -      -
     48P  LEU*     4.3    20.4    -      -       +      -
    116P  PHE*     5.0     3.4    -      +       -      -
    120P  TYR*     5.3     7.0    -      +       -      -
    169P  GLY      3.2     4.4    +      -       -      +
    170P  PHE*     2.6    20.9    +      -       -      +
    172P  LEU*     1.3    75.5    -      -       -      +
    174P  LEU*     1.3    68.4    +      -       +      -
    176P  GLY*     3.1     1.9    +      -       -      -
    177P  VAL*     2.9    38.2    +      -       +      +
    192P  PHE*     3.7    11.9    -      +       -      -
    195P  ALA*     4.2     4.6    -      -       +      +
    202P  HIS*     3.6    31.4    -      +       +      +
    204P  GLY*     3.5    26.6    -      -       -      -
    205P  ALA*     3.6    18.2    -      -       +      -
    208P  GLU*     3.2    24.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 174 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116P  PHE*     3.6    25.6    -      -       +      -
    119P  MET*     4.0    25.1    -      -       +      +
    120P  TYR*     3.6    37.0    -      -       +      +
    123P  TYR*     4.4    14.8    -      -       +      -
    154P  LEU*     4.6     2.7    -      -       +      -
    158P  LEU*     3.3    32.1    -      -       +      -
    170P  PHE      2.7     8.5    +      -       -      -
    171P  GLY*     3.4     9.4    -      -       -      +
    173P  TYR*     1.3    77.5    -      -       +      +
    175P  TYR*     1.3    63.2    +      -       -      +
    177P  VAL*     3.3    13.8    +      -       +      +
    178P  VAL*     3.1    25.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 175 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155P  ARG*     4.1    29.6    +      -       +      -
    158P  LEU*     3.6    25.8    -      -       +      -
    159P  SER*     3.6    23.6    -      -       -      -
    162P  HIS*     3.6    39.6    +      +       +      -
    167P  LEU*     4.2     9.6    -      -       +      -
    171P  GLY      2.8    12.6    +      -       -      +
    172P  LEU*     3.4     8.5    -      -       +      +
    174P  LEU*     1.3    77.5    -      -       -      +
    176P  GLY*     1.3    62.1    +      -       -      +
    178P  VAL*     3.0     4.4    +      -       +      +
    179P  LEU*     3.0    45.7    +      -       +      +
    187P  GLU*     4.9     5.6    +      -       -      -
    191P  VAL*     3.8    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 176 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172P  LEU      2.8    14.1    +      -       -      -
    173P  TYR      3.5     3.6    -      -       -      -
    175P  TYR*     1.3    75.5    -      -       -      +
    177P  VAL*     1.3    64.1    +      -       -      +
    179P  LEU*     3.3     7.7    +      -       -      +
    180P  ARG*     2.9    24.1    +      -       -      +
    188P  ALA*     4.0     1.7    -      -       -      +
    191P  VAL*     3.8    15.2    -      -       -      +
    192P  PHE*     3.3    22.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 177 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2M  ASP*     3.3    44.0    -      -       +      +
    120P  TYR*     6.2     0.2    -      -       +      -
    123P  TYR*     3.6    23.3    -      -       +      +
    173P  TYR*     2.9    47.3    +      -       +      +
    174P  LEU*     3.3    15.7    -      -       +      +
    175P  TYR      3.3     0.2    -      -       -      -
    176P  GLY*     1.3    76.4    -      -       -      +
    178P  VAL*     1.3    59.4    +      -       +      +
    180P  ARG*     3.2     6.3    +      -       -      +
    181P  LYS*     2.9    28.6    +      -       -      +
    192P  PHE*     3.4     7.4    -      -       +      -
    208P  GLU*     4.4     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 178 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123P  TYR*     3.9    17.0    -      -       +      -
    151P  LEU*     3.6    46.4    -      -       +      +
    154P  LEU*     4.1    12.8    -      -       +      -
    155P  ARG*     4.1    24.0    -      -       +      +
    158P  LEU*     4.6     2.0    -      -       +      -
    174P  LEU*     3.1    19.7    +      -       +      +
    175P  TYR*     3.0    11.4    +      -       +      +
    177P  VAL*     1.3    73.8    -      -       +      +
    179P  LEU*     1.3    67.5    +      -       -      +
    181P  LYS*     3.2     5.1    +      -       -      +
    182P  LEU*     3.1    24.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 179 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    473J  VAL*     5.9     0.9    -      -       +      -
    155P  ARG*     4.0    14.6    -      -       +      +
    175P  TYR*     3.0    47.3    +      -       +      +
    176P  GLY*     3.6     4.5    -      -       -      +
    178P  VAL*     1.3    78.0    -      -       -      +
    180P  ARG*     1.3    62.1    +      -       -      +
    182P  LEU*     3.0    13.1    +      -       -      +
    184P  LEU*     2.9    51.2    +      -       +      +
    187P  GLU*     4.4    12.8    -      -       +      +
    188P  ALA*     3.9    16.6    -      -       +      +
    191P  VAL*     3.5    35.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 180 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2M  ASP*     2.7    30.9    +      -       -      -
      3M  SER*     2.9    19.9    +      -       -      -
    176P  GLY      2.9    18.2    +      -       -      +
    177P  VAL*     3.5     6.0    -      -       -      +
    178P  VAL      3.2     0.2    -      -       -      -
    179P  LEU*     1.3    76.9    -      -       -      +
    181P  LYS*     1.3    74.3    +      -       -      +
    183P  ASP*     2.8    23.4    +      -       -      +
    184P  LEU      4.6     2.9    -      -       -      +
    185P  VAL*     5.1     4.8    -      -       +      +
    188P  ALA*     4.3     9.9    -      -       +      -
    192P  PHE*     4.7     2.7    -      -       +      -
    208P  GLU*     2.9    33.3    +      -       -      +
    211P  ASN*     5.0     9.9    -      -       -      +
    212P  LEU*     3.6    40.2    -      -       +      -
    363P  ARG*     3.8    22.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 181 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477J  GLN*     4.1     5.0    -      -       -      +
      2M  ASP*     4.7     8.0    +      -       -      -
      3M  SER*     4.7     7.5    +      -       -      +
      5M  VAL*     6.0     1.0    -      -       -      +
    123P  TYR*     3.5    23.2    +      -       +      +
    127P  GLU*     3.6    26.4    +      -       -      +
    130P  LYS*     5.0     8.8    -      -       -      +
    148P  ASN*     5.1     0.3    -      -       -      +
    151P  LEU*     3.5    22.6    -      -       +      +
    177P  VAL*     2.9    17.9    +      -       +      +
    178P  VAL*     3.2     5.3    +      -       -      +
    180P  ARG*     1.3   100.1    -      -       -      +
    182P  LEU*     1.3    61.8    +      -       -      +
    183P  ASP*     3.0    12.1    -      -       -      +
    363P  ARG*     4.2    27.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 182 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    476J  PRO*     3.3    52.0    -      -       +      +
    477J  GLN*     3.8     3.7    +      -       -      -
    148P  ASN*     3.3    24.5    -      -       -      +
    151P  LEU*     3.4    32.1    -      -       +      -
    152P  ARG*     4.6     4.5    -      -       -      +
    155P  ARG*     4.0    34.1    -      -       +      -
    178P  VAL*     3.1    17.1    +      -       +      +
    179P  LEU*     3.0     9.2    +      -       -      +
    181P  LYS*     1.3    74.6    -      -       -      +
    183P  ASP*     1.3    74.2    +      -       -      +
    184P  LEU*     3.3    10.0    +      -       +      +
----------------------------------------------------------
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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