Contacts of the helix formed by residues 129 - 142 (chain D) in PDB entry 6BCH


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 THR 129 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44D  THR*     3.5     5.9    -      -       -      +
    125D  LYS      4.7     1.6    +      -       -      -
    126D  GLU*     3.5    17.7    +      -       -      -
    127D  HIS      3.1     1.0    -      -       -      -
    128D  LEU*     1.3    82.8    -      -       -      +
    130D  GLU*     1.3    69.8    +      -       +      +
    131D  GLU*     3.7    18.2    -      -       +      +
    132D  GLY      4.1     2.7    -      -       -      -
    133D  LEU*     3.0    25.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 130 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44D  THR*     3.8    12.3    -      -       +      +
    129D  THR*     1.3    77.7    -      -       +      +
    131D  GLU*     1.3    56.9    +      -       -      +
    133D  LEU*     3.6     4.9    -      -       -      +
    134D  ASN*     2.8    42.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 131 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129D  THR*     3.2    12.4    -      -       +      +
    130D  GLU*     1.3    77.1    -      -       -      +
    132D  GLY*     1.3    61.0    +      -       -      +
    134D  ASN*     3.3     7.8    +      -       -      +
    135D  GLN*     3.0    32.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 132 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121D  LEU*     4.5     4.5    -      -       -      +
    126D  GLU*     3.2    31.3    +      -       -      -
    127D  HIS*     4.3     2.0    -      -       -      -
    129D  THR*     3.5     4.9    +      -       -      -
    130D  GLU      3.4     0.2    -      -       -      -
    131D  GLU*     1.3    76.8    -      -       -      +
    133D  LEU*     1.3    60.5    +      -       -      +
    135D  GLN*     3.2    10.5    +      -       -      +
    136D  ILE*     2.9    35.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 133 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36D  VAL*     4.6     1.6    -      -       +      -
     44D  THR*     3.7    31.0    -      -       +      +
     46D  TRP*     3.9    27.1    -      -       +      +
     48D  VAL*     3.5    28.3    -      -       +      -
    126D  GLU      4.1     1.2    +      -       -      -
    127D  HIS*     4.0    12.2    +      -       -      +
    129D  THR      3.0    18.4    +      -       -      +
    130D  GLU*     3.6     6.3    -      -       -      +
    132D  GLY*     1.3    76.5    -      -       -      +
    134D  ASN*     1.3    64.3    +      -       -      +
    136D  ILE*     3.1     7.5    +      -       +      +
    137D  LEU*     2.9    46.9    +      -       +      +
    155D  PHE*     4.1    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 134 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  GLU*     2.8    30.7    +      -       -      +
    131D  GLU*     3.3     7.8    +      -       -      +
    133D  LEU*     1.3    76.3    -      -       -      +
    135D  GLN*     1.3    62.5    +      -       -      +
    137D  LEU*     3.2     9.9    +      -       -      +
    138D  THR*     3.0    26.0    +      -       +      +
    155D  PHE*     3.8    29.4    -      -       -      +
    158D  THR*     5.0     4.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 135 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121D  LEU*     4.0    29.8    -      -       +      +
    126D  GLU*     5.3     1.0    -      -       -      +
    131D  GLU*     3.0    21.1    +      -       +      +
    132D  GLY*     3.6     8.2    -      -       -      +
    133D  LEU      3.2     0.2    -      -       -      -
    134D  ASN*     1.3    73.4    -      -       -      +
    136D  ILE*     1.3    66.6    +      -       -      +
    138D  THR*     2.3    36.8    +      -       +      +
    139D  LEU*     3.0    13.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 136 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  LEU*     4.5    17.0    -      -       +      +
     36D  VAL*     4.9     5.8    -      -       +      -
     48D  VAL*     3.7    33.7    -      -       +      -
    118D  ALA*     4.6     5.4    -      -       +      +
    121D  LEU*     3.9    20.9    -      -       +      -
    122D  ILE*     3.9    13.2    -      -       +      -
    127D  HIS*     3.5    32.8    -      -       +      -
    132D  GLY      2.9    17.6    +      -       -      +
    133D  LEU*     3.1     9.8    +      -       +      +
    135D  GLN*     1.3    75.5    -      -       -      +
    137D  LEU*     1.3    61.2    +      -       +      +
    139D  LEU*     2.9    12.2    +      -       -      +
    140D  LYS*     2.8    26.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 137 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36D  VAL*     4.3    22.2    -      -       +      -
    133D  LEU*     2.9    50.5    +      -       +      +
    134D  ASN*     3.2    11.9    +      -       -      +
    136D  ILE*     1.3    75.3    -      -       +      +
    138D  THR*     1.3    59.9    +      -       -      +
    140D  LYS*     4.2     4.9    -      -       -      -
    141D  ALA*     2.9    31.2    +      -       -      +
    147D  LEU*     3.8    20.6    -      -       +      +
    151D  LEU*     5.0     7.4    -      -       +      +
    155D  PHE*     3.3    50.5    -      -       +      -
    158D  THR*     4.3    11.9    -      -       +      +
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Residues in contact with THR 138 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134D  ASN*     3.0    18.2    +      -       +      +
    135D  GLN*     2.3    36.2    +      -       +      +
    137D  LEU*     1.3    76.1    -      -       -      +
    139D  LEU*     1.3    62.4    +      -       -      +
    141D  ALA*     3.7     3.3    +      -       -      +
    142D  SER      3.9     1.0    +      -       -      -
    158D  THR*     4.4    11.0    -      -       +      -
    159D  ILE      3.4    26.7    -      -       -      +
    160D  PRO*     3.6     5.5    -      -       -      +
    161D  ALA*     2.7    34.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 139 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  LEU*     4.7     6.5    -      -       +      -
    114D  LEU*     3.7    36.9    -      -       +      +
    117D  LYS*     3.8    18.4    -      -       +      -
    118D  ALA*     3.4    38.6    -      -       +      +
    121D  LEU*     3.9    18.2    -      -       +      -
    135D  GLN*     3.0    16.1    +      -       +      +
    136D  ILE*     2.9     9.2    +      -       -      +
    138D  THR*     1.3    81.2    +      -       -      +
    140D  LYS*     1.3    64.5    +      -       -      +
    142D  SER*     3.2    10.9    +      -       -      -
    143D  LEU*     3.2    12.7    +      -       -      +
    161D  ALA*     3.9    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 140 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  LEU*     2.5    47.8    +      -       +      +
     36D  VAL*     3.9    23.6    -      -       +      +
    136D  ILE*     2.8    20.0    +      -       +      +
    137D  LEU*     3.4     4.0    +      -       +      +
    139D  LEU*     1.3    70.4    -      -       -      +
    141D  ALA*     1.3    64.8    +      -       -      +
    143D  LEU*     3.0    30.8    +      -       +      +
    146D  GLY*     3.3    16.2    +      -       -      +
    147D  LEU*     3.6    17.3    -      -       +      +
    148D  SER      5.6     0.7    -      -       -      +
    151D  LEU*     3.7    25.1    -      -       +      -
     19G    G      4.8    12.1    +      -       -      -
     20G    A      3.7    19.2    +      -       -      -
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Residues in contact with ALA 141 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137D  LEU      2.9    17.8    +      -       -      +
    138D  THR*     3.7     4.3    -      -       -      +
    139D  LEU      3.2     0.4    -      -       -      -
    140D  LYS*     1.3    77.2    -      -       -      +
    142D  SER*     1.3    58.2    +      -       -      +
    146D  GLY*     3.2    15.2    -      -       -      -
    147D  LEU*     3.5    26.8    +      -       +      +
    158D  THR*     4.8     2.7    -      -       +      -
    160D  PRO*     3.7    32.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 142 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114D  LEU*     3.5    17.9    -      -       -      -
    138D  THR      4.4     1.8    -      -       -      -
    139D  LEU      3.2     5.1    +      -       -      -
    140D  LYS      3.1     0.4    -      -       -      -
    141D  ALA*     1.3    76.2    -      -       -      +
    143D  LEU*     1.3    60.4    +      -       -      +
    144D  ASN      3.7     4.0    +      -       -      +
    160D  PRO*     3.4    15.8    -      -       -      +
    161D  ALA      2.6    31.1    +      -       -      -
    163D  ARG*     2.9    40.0    +      -       -      +
----------------------------------------------------------
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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