Contacts of the helix formed by residues 140 - 154 (chain D) in PDB entry 4BUR


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 140 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138D  GLY      3.4     6.1    +      -       -      -
    139D  GLY*     1.3    80.6    -      -       -      +
    141D  THR*     1.3    66.1    +      -       -      -
    142D  ALA      3.4     2.5    -      -       -      -
    143D  ALA*     3.4     2.1    +      -       -      +
    144D  PHE*     3.2    22.3    +      -       -      +
    169D  PRO*     4.4     0.7    -      -       -      +
    170D  TYR      5.0     4.7    -      -       -      -
    172D  ARG*     4.8     4.0    -      -       -      -
    205D  PHE*     4.7     5.2    -      -       -      -
    259D  ALA      5.1     0.2    +      -       -      -
   1612D  FAD      3.5    27.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 141 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140D  GLY*     1.3    71.4    -      -       -      -
    142D  ALA*     1.3    63.6    +      -       -      +
    144D  PHE*     3.3     1.4    +      -       -      +
    145D  ALA*     2.9    24.6    +      -       +      +
    170D  TYR      4.0     7.4    +      -       -      -
    171D  MET*     4.6     1.0    -      -       -      -
    172D  ARG*     5.1     1.2    +      -       -      +
    205D  PHE*     3.8    26.1    -      -       +      -
    455D  HIS*     3.7    24.4    -      -       +      +
    458D  ALA*     3.8    18.8    -      -       +      -
    459D  VAL*     3.7    31.6    -      -       +      +
   1612D  FAD      3.1    17.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 142 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141D  THR*     1.3    72.8    -      -       -      +
    143D  ALA*     1.3    57.2    -      -       -      +
    146D  ALA*     2.9    32.1    +      -       -      +
    257D  LEU*     4.8     0.9    -      -       -      -
    259D  ALA*     3.7    19.1    -      -       +      -
    436D  ALA*     4.1     6.5    -      -       +      -
    437D  GLY*     4.0    15.9    -      -       -      +
    458D  ALA*     3.4    21.5    +      -       +      +
    462D  GLY*     3.6     5.0    -      -       -      -
   1612D  FAD      2.8    28.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 143 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136D  LEU*     3.2    21.3    -      -       +      +
    137D  ILE      5.2     0.2    -      -       -      +
    138D  GLY      2.7    31.6    -      -       -      +
    139D  GLY*     4.2     3.1    -      -       -      -
    140D  GLY      3.4    10.6    +      -       -      +
    141D  THR      3.3     0.2    -      -       -      -
    142D  ALA*     1.3    77.8    -      -       -      +
    144D  PHE*     1.3    58.3    +      -       -      +
    146D  ALA      3.1     1.7    +      -       -      -
    147D  ALA*     2.9    24.9    +      -       -      +
    161D  ILE*     4.3    13.0    -      -       +      -
    169D  PRO*     5.9     0.2    -      -       +      -
    257D  LEU*     4.4     7.2    -      -       -      -
    259D  ALA*     4.0     6.8    -      -       +      +
   1612D  FAD      4.5     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 144 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140D  GLY      3.2    10.9    +      -       -      +
    141D  THR      3.3     4.9    +      -       -      +
    143D  ALA*     1.3    77.5    -      -       -      +
    145D  ALA*     1.3    65.8    +      -       +      +
    147D  ALA*     3.0    11.6    +      -       +      +
    148D  ARG*     2.8    63.5    +      -       +      -
    161D  ILE*     4.5     6.4    -      -       +      +
    169D  PRO*     4.3     6.9    -      -       +      +
    205D  PHE*     3.5    52.3    -      +       +      -
    206D  GLN*     4.2    29.2    -      -       +      -
    211D  TYR*     3.7    26.5    -      +       -      -
    225D  VAL*     6.5     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 145 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141D  THR*     2.9    18.4    +      -       +      +
    142D  ALA      4.0     2.5    -      -       -      +
    144D  PHE*     1.3    86.5    -      -       +      +
    146D  ALA*     1.3    60.9    +      -       -      +
    148D  ARG*     4.1     4.6    -      -       -      +
    149D  SER*     3.3    22.0    +      -       -      -
    458D  ALA      4.4     0.4    -      -       -      +
    459D  VAL*     3.9    42.8    -      -       +      +
    463D  ARG*     3.8    15.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 146 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136D  LEU*     4.3     2.7    -      -       +      -
    142D  ALA      2.9    17.9    +      -       -      +
    143D  ALA      3.5     4.0    -      -       -      +
    144D  PHE      3.1     0.2    -      -       -      -
    145D  ALA*     1.3    74.8    -      -       -      +
    147D  ALA*     1.3    59.9    +      -       -      +
    149D  SER*     3.1     4.3    +      -       -      -
    150D  ILE*     2.9    36.1    +      -       +      +
    257D  LEU*     3.7    24.0    -      -       +      -
    462D  GLY      3.2    24.9    -      -       -      +
    463D  ARG      4.2     0.2    -      -       -      +
    466D  GLY*     3.8     7.0    -      -       -      +
    469D  MET*     5.5     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 147 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136D  LEU*     3.8     5.5    -      -       +      +
    143D  ALA      2.9    12.9    +      -       -      +
    144D  PHE*     3.0    11.6    +      -       +      +
    146D  ALA*     1.3    74.6    -      -       -      +
    148D  ARG*     1.3    59.5    +      -       -      +
    150D  ILE*     2.8    31.4    +      -       -      +
    151D  ARG*     3.1    17.6    +      -       -      +
    159D  VAL*     4.3     6.0    -      -       +      +
    161D  ILE*     3.9    21.5    -      -       +      -
    225D  VAL*     4.1    18.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 148 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144D  PHE*     2.8    50.5    +      -       +      +
    145D  ALA*     4.1     5.6    -      -       -      +
    147D  ALA*     1.3    72.1    -      -       -      +
    149D  SER*     1.3    59.8    +      -       -      +
    151D  ARG*     4.2     6.2    -      -       -      +
    152D  ALA*     3.3    23.9    +      -       -      +
    206D  GLN*     6.1     2.2    -      -       -      +
    225D  VAL*     6.2     0.4    -      -       -      -
    463D  ARG*     5.0    19.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 149 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145D  ALA      3.3    18.3    +      -       -      -
    146D  ALA      3.1     5.8    +      -       -      -
    147D  ALA      3.0     0.8    -      -       -      -
    148D  ARG*     1.3    78.4    -      -       -      +
    150D  ILE*     1.3    65.5    +      -       -      +
    152D  ALA*     3.5     7.0    +      -       -      +
    153D  ARG*     3.4    23.7    +      -       -      +
    463D  ARG*     2.9    41.6    +      -       -      +
    466D  GLY*     4.2     3.1    -      -       -      -
    467D  GLU*     3.5    16.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 150 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134D  PHE*     4.0    18.4    -      -       +      -
    136D  LEU*     3.9    26.2    -      -       +      -
    146D  ALA*     2.9    27.2    +      -       +      +
    147D  ALA*     2.8     9.7    +      -       -      +
    149D  SER*     1.3    77.4    -      -       -      +
    151D  ARG*     1.3    56.2    +      -       -      +
    153D  ARG*     3.2     3.8    +      -       -      +
    154D  ASP*     3.0    27.4    +      -       -      +
    157D  ALA*     3.9    21.5    -      -       +      -
    159D  VAL*     4.0    11.0    -      -       +      -
    466D  GLY*     3.8    22.0    -      -       -      +
    469D  MET*     4.5    12.3    -      -       +      -
    470D  THR*     3.7    21.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 151 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147D  ALA      3.1    14.1    +      -       -      +
    148D  ARG*     4.2     5.6    -      -       -      +
    150D  ILE*     1.3    72.0    -      -       -      +
    152D  ALA*     1.3    62.3    +      -       -      +
    153D  ARG      2.9     6.2    +      -       -      -
    154D  ASP      3.2    21.5    +      -       -      -
    155D  PRO*     2.6    40.3    +      -       +      +
    157D  ALA*     3.3    27.0    +      -       -      -
    159D  VAL*     4.5     6.5    -      -       +      -
    222D  ASN*     2.9    22.0    +      -       -      +
    223D  GLY      4.4     0.4    -      -       -      -
    224D  GLY*     3.5    21.5    -      -       -      -
    225D  VAL*     4.0    23.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 152 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148D  ARG      3.3    17.6    +      -       -      +
    149D  SER*     3.8     7.4    -      -       -      +
    150D  ILE      3.4     0.4    -      -       -      -
    151D  ARG*     1.3    77.8    -      -       -      +
    153D  ARG*     1.3    61.0    +      -       +      +
    155D  PRO*     5.1     5.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 153 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149D  SER      3.4    11.4    +      -       -      +
    150D  ILE      3.2     2.6    +      -       -      +
    151D  ARG      3.0     0.6    -      -       -      -
    152D  ALA*     1.3    82.7    -      -       +      +
    154D  ASP*     1.3    60.0    +      -       -      +
    155D  PRO*     4.1     5.6    -      -       -      +
    467D  GLU*     3.7    32.8    +      -       +      +
    470D  THR*     2.9    48.9    +      -       -      +
    471D  GLY      4.0     1.6    -      -       -      -
    472D  ALA*     3.5    30.9    -      -       -      +
    474D  LYS*     6.3     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 154 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134D  PHE*     4.0    15.2    -      -       -      -
    150D  ILE      3.0    11.0    +      -       -      +
    151D  ARG*     3.3     6.3    -      -       -      +
    153D  ARG*     1.3    79.3    -      -       -      +
    155D  PRO*     1.4    62.7    -      -       -      +
    156D  GLY*     3.4     7.3    +      -       -      -
    157D  ALA*     3.0    43.8    +      -       +      +
    470D  THR*     4.5    13.3    -      -       +      +
----------------------------------------------------------
 Back to top of page


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