Contacts of the helix formed by residues 327 - 342 (chain D) in PDB entry 2DB3


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 327 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325D  SER*     2.7    22.1    +      -       -      -
    326D  PRO*     1.3    83.8    +      -       -      +
    328D  ARG*     1.3    63.3    +      -       -      +
    329D  GLU*     3.5    12.1    -      -       +      +
    330D  LEU*     3.1    34.3    -      -       +      +
    331D  ALA      3.1     7.6    +      -       -      -
    375D  THR*     3.6     8.9    -      -       -      +
    548D  VAL*     3.2    31.5    +      -       -      +
    551D  ARG*     5.3     4.0    -      -       -      +
    553D  LEU*     5.1     3.6    -      -       +      -
      4H    U      3.4    16.5    +      -       -      -
      5H    U      3.6     4.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 328 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327D  THR*     1.3    72.5    -      -       -      +
    329D  GLU*     1.3    59.3    +      -       -      +
    331D  ALA*     3.0     5.5    +      -       -      +
    332D  ILE*     3.0    32.2    +      -       -      +
    353D  TYR*     3.8    21.6    -      -       +      -
    354D  GLY*     3.4    31.3    +      -       -      -
    355D  GLY*     3.8     6.3    -      -       -      +
    375D  THR*     3.7    11.4    -      -       +      +
    525D  GLN*     2.7    51.9    +      -       -      +
    528D  ARG*     3.9    17.9    -      -       -      +
      5H    U      2.9    31.1    +      -       -      +
      6H    U      2.8    35.5    +      -       -      +
      7H    U      4.4     5.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 329 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327D  THR*     3.8     9.5    -      -       +      +
    328D  ARG*     1.3    72.7    -      -       -      +
    330D  LEU*     1.3    60.9    +      -       -      +
    331D  ALA      3.3     0.2    -      -       -      -
    332D  ILE*     3.5    14.5    +      -       +      +
    333D  GLN*     3.1    20.8    +      -       -      +
    519D  ILE*     3.8    12.0    -      -       +      +
    525D  GLN*     3.1    18.2    +      -       -      +
    528D  ARG*     2.5    56.0    +      -       -      +
    529D  GLU*     4.9     4.7    -      -       +      -
    532D  LEU*     3.7    32.3    -      -       +      +
    548D  VAL*     4.1     6.2    -      -       -      +
    553D  LEU*     4.1    11.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 330 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325D  SER*     3.6    13.7    -      -       -      +
    326D  PRO*     4.2     7.6    -      -       +      -
    327D  THR*     3.1    21.0    -      -       +      +
    329D  GLU*     1.3    74.8    -      -       -      +
    331D  ALA*     1.3    67.0    +      -       -      +
    333D  GLN*     3.2    26.8    +      -       -      +
    334D  ILE*     3.0    39.0    +      -       +      +
    399D  ASP*     4.1     8.1    -      -       -      +
    400D  GLU*     3.7    28.7    -      -       +      +
    551D  ARG      3.7    16.8    -      -       -      +
    552D  GLY*     3.9    15.9    -      -       -      +
    553D  LEU*     4.0     8.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 331 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325D  SER*     3.5    12.9    +      -       -      -
    327D  THR      3.1    13.1    +      -       -      +
    328D  ARG*     3.0    10.9    +      -       -      +
    330D  LEU*     1.3    78.9    -      -       -      +
    332D  ILE*     1.3    57.2    +      -       -      +
    334D  ILE*     3.3     0.7    +      -       -      -
    335D  PHE*     2.9    30.0    +      -       -      +
    351D  ILE*     3.7    13.5    -      -       +      -
    353D  TYR*     5.1     2.7    -      -       +      -
    373D  ILE*     3.4    23.8    -      -       +      +
    374D  ALA*     4.7     5.8    -      -       -      -
    375D  THR*     4.1    11.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 332 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328D  ARG      3.0    18.8    +      -       -      +
    329D  GLU*     3.7    15.5    -      -       +      +
    331D  ALA*     1.3    77.2    -      -       -      +
    333D  GLN*     1.3    61.3    +      -       -      +
    335D  PHE*     3.1     8.5    -      -       +      +
    336D  ASN*     3.0    34.3    +      -       -      +
    351D  ILE*     3.5     9.0    -      -       +      -
    353D  TYR*     3.4    45.1    -      -       +      +
    525D  GLN*     4.5     1.1    -      -       -      +
    529D  GLU*     3.7    24.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 333 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296D  THR*     5.2     5.6    +      -       +      +
    329D  GLU      3.1    14.1    +      -       -      +
    330D  LEU*     3.2    20.0    +      -       -      +
    332D  ILE*     1.3    75.5    -      -       -      +
    334D  ILE*     1.3    69.1    +      -       +      +
    336D  ASN*     3.1     7.8    +      -       -      +
    337D  GLU*     3.1    32.2    +      -       +      +
    536D  LYS*     5.8     3.8    +      -       -      +
    552D  GLY      2.8    26.2    +      -       -      -
    553D  LEU*     3.5     9.3    -      -       +      +
    554D  ASP*     2.8    39.7    +      -       -      +
    555D  ILE*     5.4     1.0    -      -       -      +
   2904D  ANP      4.4     6.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 334 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296D  THR*     4.3    22.7    -      -       +      +
    299D  PHE*     4.5     6.3    -      -       +      -
    300D  LEU*     4.2     8.9    -      -       +      +
    323D  ILE*     4.3    14.8    -      -       +      -
    325D  SER*     4.5     9.9    -      -       -      -
    330D  LEU*     3.0    32.5    +      -       +      +
    331D  ALA      3.8     2.9    -      -       -      +
    333D  GLN*     1.3    76.9    -      -       +      +
    335D  PHE*     1.3    63.6    +      -       -      +
    337D  GLU*     3.2     7.2    +      -       -      +
    338D  ALA*     3.0    23.3    +      -       -      +
    373D  ILE*     4.1    23.3    -      -       +      -
    399D  ASP*     3.2    36.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 335 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207D  PRO*     3.9    21.3    -      -       +      -
    331D  ALA      2.9    13.5    +      -       -      +
    332D  ILE*     3.1    15.0    -      -       +      +
    334D  ILE*     1.3    78.2    -      -       -      +
    336D  ASN*     1.3    67.9    +      -       -      +
    338D  ALA*     3.4     4.4    -      -       -      +
    339D  ARG*     3.1    58.5    +      -       -      +
    349D  ILE*     3.2    35.7    -      -       +      -
    350D  GLY*     3.5    23.1    -      -       -      -
    351D  ILE*     3.6    31.6    -      -       +      -
    373D  ILE*     3.9    10.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 336 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207D  PRO*     3.8    17.8    -      -       -      +
    214D  ILE*     4.8     3.5    -      -       -      +
    217D  SER*     5.1     6.1    +      -       -      +
    332D  ILE*     3.0    32.1    +      -       -      +
    333D  GLN*     3.1     8.6    +      -       -      +
    335D  PHE*     1.3    80.2    -      -       -      +
    337D  GLU*     1.3    69.7    +      -       -      +
    338D  ALA      3.1     1.6    -      -       -      -
    339D  ARG*     3.5    24.8    +      -       -      +
    340D  LYS*     3.1    21.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 337 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217D  SER*     2.8    31.9    +      -       -      -
    218D  GLY*     5.4     1.6    +      -       -      -
    265D  TYR*     4.1     2.9    +      -       -      -
    296D  THR*     4.4    14.6    -      -       +      -
    300D  LEU*     4.0    13.0    -      -       +      -
    333D  GLN*     3.1    27.8    +      -       +      +
    334D  ILE*     3.8     6.1    -      -       -      +
    336D  ASN*     1.3    78.3    -      -       -      +
    338D  ALA*     1.3    57.7    +      -       -      +
    340D  LYS*     2.8    31.5    +      -       -      +
    341D  PHE*     2.9    42.1    +      -       +      -
    554D  ASP*     6.1     0.4    -      -       -      -
   2904D  ANP      4.0    13.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 338 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300D  LEU*     3.8    21.7    -      -       +      +
    304D  LEU*     3.9     8.6    -      -       +      +
    334D  ILE      3.0    13.3    +      -       -      +
    335D  PHE*     3.4    11.9    -      -       -      +
    337D  GLU*     1.3    72.2    -      -       -      +
    339D  ARG*     1.3    51.4    +      -       -      +
    340D  LYS      2.9     4.0    -      -       -      -
    341D  PHE*     3.1     2.4    +      -       -      -
    342D  ALA*     2.8    39.8    +      -       -      +
    349D  ILE*     3.6    26.5    -      -       +      -
    371D  VAL*     5.6     1.6    -      -       +      -
    373D  ILE*     5.1     4.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 339 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207D  PRO*     3.4    23.1    +      -       -      +
    208D  SER      3.5    23.0    +      -       -      -
    209D  ASN*     3.0    25.7    +      -       -      +
    214D  ILE*     3.8    21.5    -      -       +      +
    335D  PHE*     3.1    49.7    +      -       +      +
    336D  ASN*     3.7    18.8    -      -       -      +
    337D  GLU      3.4     0.2    -      -       -      -
    338D  ALA*     1.3    76.0    -      -       -      +
    340D  LYS*     1.3    60.5    +      -       -      +
    342D  ALA*     3.8     2.8    -      -       -      +
    343D  PHE*     3.2    22.9    +      -       -      +
    349D  ILE*     4.3    17.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 340 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214D  ILE*     3.8    27.8    -      -       -      +
    215D  PHE*     3.8    20.7    -      -       +      -
    217D  SER*     4.2    18.0    +      -       -      +
    218D  GLY*     5.1     0.6    -      -       -      -
    259D  ASN*     3.4     8.9    -      -       -      +
    263D  SER*     3.2    31.6    +      -       -      +
    265D  TYR*     3.4    17.0    +      -       -      -
    336D  ASN      3.1    14.3    +      -       -      +
    337D  GLU*     2.8    39.7    +      -       -      +
    338D  ALA      2.9     0.4    -      -       -      -
    339D  ARG*     1.3    79.0    -      -       -      +
    341D  PHE*     1.3    78.9    +      -       -      +
    343D  PHE*     3.3    18.4    +      -       -      +
   2904D  ANP      4.0     5.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 341 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256D  ILE*     3.3    19.1    -      -       +      +
    259D  ASN*     3.0    20.0    +      -       +      +
    260D  VAL*     4.4    15.5    -      -       +      -
    263D  SER*     3.7    23.3    -      -       -      -
    265D  TYR*     3.3    39.5    -      +       -      -
    296D  THR*     5.7     0.7    -      -       +      -
    297D  ALA*     3.8    22.9    -      -       +      -
    300D  LEU*     4.0    17.9    -      -       +      -
    301D  LEU*     3.6    27.8    -      -       +      -
    304D  LEU*     3.7    17.5    -      -       +      -
    337D  GLU*     2.9    32.8    +      -       +      +
    338D  ALA      3.1     0.2    +      -       -      -
    340D  LYS*     1.3    83.4    -      -       -      +
    342D  ALA*     1.3    56.7    +      -       -      +
    343D  PHE      3.3     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 342 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256D  ILE*     4.8     2.0    -      -       -      -
    259D  ASN*     4.1     0.9    -      -       -      +
    304D  LEU*     3.9    13.2    -      -       +      -
    338D  ALA      2.8    16.4    +      -       -      +
    339D  ARG*     3.8     4.3    -      -       -      +
    341D  PHE*     1.3    77.8    -      -       -      +
    343D  PHE*     1.3    63.5    +      -       -      +
    344D  GLU      3.3     0.5    +      -       -      -
    345D  SER*     2.8    37.6    +      -       -      +
    347D  LEU*     4.4    12.6    -      -       +      +
    349D  ILE*     4.2    20.2    -      -       +      -
----------------------------------------------------------
 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