Contacts of the helix formed by residues 341 - 355 (chain D) in PDB entry 4QGC


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 341 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303A  ALA*     3.7     4.5    -      -       -      +
    333D  SER*     4.2    15.9    -      -       -      +
    337D  LYS*     5.9     6.5    -      -       +      +
    339D  ARG      5.7     0.2    -      -       -      +
    340D  PRO*     1.3    78.0    -      -       -      +
    342D  ARG*     1.3    64.6    +      -       -      +
    343D  ALA*     3.6     9.5    +      -       -      +
    344D  GLU*     3.2    30.1    +      -       -      +
    345D  GLY      3.2    15.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 342 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294A  ARG*     2.9    57.3    -      -       -      +
    298A  GLY*     4.6     9.6    -      -       -      -
    303A  ALA*     3.8    17.6    -      -       +      +
    306A  VAL*     4.0    40.6    -      -       +      +
    307A  PHE      5.9     0.3    +      -       -      -
    310A  GLN*     5.0     1.8    +      -       -      -
    329A  GLN*     2.6    40.0    +      -       -      +
    347A  ASP*     3.1    26.1    +      -       -      -
    340D  PRO      4.0     0.6    +      -       -      -
    341D  THR*     1.3    71.1    -      -       -      +
    343D  ALA*     1.3    75.8    +      -       -      +
    345D  GLY      3.4     0.9    +      -       -      -
    346D  SER*     2.8    52.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 343 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  GLN*     4.9     4.3    -      -       +      +
    347A  ASP*     4.9     7.9    -      -       +      +
    341D  THR*     3.1     9.7    +      -       -      +
    342D  ARG*     1.3   108.8    -      -       -      +
    344D  GLU*     1.3    57.4    +      -       +      +
    346D  SER*     3.4     2.3    +      -       -      -
    347D  ASP*     2.9    29.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 344 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329D  GLN      5.6     1.7    -      -       -      +
    330D  MET      3.4    16.8    -      -       -      +
    331D  LEU*     4.0    14.8    -      -       +      -
    332D  GLU*     3.4     8.7    +      -       -      +
    333D  SER*     2.4    51.7    +      -       -      -
    340D  PRO*     3.5     6.4    -      -       -      +
    341D  THR*     3.2    27.2    +      -       -      +
    343D  ALA*     1.3    75.6    -      -       +      +
    345D  GLY*     1.3    58.7    -      -       -      +
    347D  ASP*     3.2     5.7    +      -       -      +
    348D  VAL*     2.9    36.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 345 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303A  ALA*     4.0    18.2    -      -       -      -
    307A  PHE*     4.3     1.8    -      -       -      -
    331D  LEU*     4.7     0.6    -      -       -      +
    340D  PRO*     5.1     0.4    -      -       -      +
    341D  THR      3.2    10.5    +      -       -      -
    342D  ARG      3.4     3.1    +      -       -      -
    343D  ALA      3.3     0.2    -      -       -      -
    344D  GLU*     1.3    78.9    -      -       -      +
    346D  SER*     1.3    56.8    +      -       -      +
    349D  ALA*     3.0    29.1    +      -       -      +
    381D  ILE*     3.6    29.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 346 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303A  ALA      4.7     0.4    +      -       -      -
    307A  PHE*     4.1    25.1    -      -       -      +
    310A  GLN*     5.8     2.4    +      -       -      -
    347A  ASP*     3.6    12.9    +      -       -      -
    342D  ARG*     2.8    36.0    +      -       -      -
    343D  ALA      3.6     3.1    -      -       -      -
    345D  GLY*     1.3    76.8    -      -       -      +
    347D  ASP*     1.3    56.5    +      -       -      +
    349D  ALA*     3.7     1.1    -      -       -      +
    350D  ASN*     3.0    48.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 347 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342A  ARG*     3.2    29.0    +      -       -      -
    343A  ALA*     5.1     6.6    -      -       +      +
    346A  SER*     3.7    13.3    +      -       -      -
    294D  ARG*     2.5    35.5    +      -       -      -
    310D  GLN*     5.5     1.0    +      -       -      -
    329D  GLN      3.7     4.8    -      -       -      +
    330D  MET*     4.4     3.2    -      -       -      +
    343D  ALA      2.9    18.2    +      -       -      +
    344D  GLU*     3.2     7.2    +      -       -      +
    346D  SER*     1.3    76.0    +      -       -      +
    348D  VAL*     1.3    63.4    +      -       -      +
    350D  ASN*     3.6     6.3    +      -       -      +
    351D  ALA*     3.3    20.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 348 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330D  MET*     3.6    45.5    -      -       +      +
    331D  LEU*     3.9    13.7    -      -       +      -
    344D  GLU      2.9    20.8    +      -       -      +
    345D  GLY      3.9     4.0    -      -       -      +
    347D  ASP*     1.3    75.0    -      -       -      +
    349D  ALA*     1.3    65.2    +      -       -      +
    351D  ALA*     3.2    12.1    +      -       -      +
    352D  VAL*     3.3    16.0    +      -       +      +
    359D  ILE*     4.5     2.9    -      -       +      +
    378D  GLN*     3.3    35.2    -      -       -      +
    381D  ILE*     3.7    17.7    -      -       +      -
    382D  ALA      5.3     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 349 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  PHE*     3.5    44.6    -      -       +      -
    345D  GLY      3.0    19.3    +      -       -      +
    346D  SER      3.7     3.8    -      -       -      +
    347D  ASP      3.3     0.2    -      -       -      -
    348D  VAL*     1.3    77.7    -      -       -      +
    350D  ASN*     1.3    58.4    +      -       -      +
    352D  VAL*     3.1     6.7    +      -       -      +
    353D  LEU*     3.0    32.3    +      -       +      +
    381D  ILE*     4.1     8.1    -      -       +      -
    385D  ALA*     4.0     7.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 350 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  PHE*     5.8     1.4    -      -       -      +
    311A  LYS*     3.2    32.1    +      -       -      +
    347A  ASP*     5.6     1.2    +      -       -      +
    350A  ASN*     3.5    45.4    -      -       -      +
    354A  ASP*     5.6     0.8    +      -       -      -
    310D  GLN*     5.1     0.9    -      -       -      +
    346D  SER*     3.0    36.1    +      -       -      +
    347D  ASP*     4.0     6.2    -      -       -      +
    349D  ALA*     1.3    73.8    -      -       -      +
    351D  ALA*     1.3    60.5    +      -       -      +
    353D  LEU*     3.7     8.4    -      -       -      +
    354D  ASP*     2.8    37.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 351 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310D  GLN*     4.1     7.6    -      -       -      +
    314D  ILE*     4.2     0.4    -      -       -      +
    326D  CYS*     3.7    31.2    -      -       +      -
    330D  MET*     4.7     1.3    -      -       +      -
    347D  ASP      3.3    11.8    +      -       -      +
    348D  VAL*     3.2    12.5    +      -       -      +
    349D  ALA      3.2     0.4    -      -       -      -
    350D  ASN*     1.3    75.6    -      -       -      +
    352D  VAL*     1.3    64.0    +      -       -      +
    354D  ASP*     3.3    16.2    +      -       -      +
    355D  GLY      3.4     0.9    +      -       -      -
    356D  ALA*     3.2    25.7    +      -       +      +
    359D  ILE*     4.0    11.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 352 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  THR*     4.0    29.8    -      -       +      +
    348D  VAL*     3.5    15.7    -      -       +      +
    349D  ALA*     3.1     8.0    +      -       -      +
    351D  ALA*     1.3    77.2    -      -       -      +
    353D  LEU*     1.3    57.1    +      -       -      +
    355D  GLY*     3.0    20.6    +      -       -      -
    356D  ALA*     3.8     8.8    +      -       -      +
    359D  ILE*     4.3    19.7    -      -       +      -
    382D  ALA*     4.5    20.2    -      -       +      +
    385D  ALA*     4.0    19.1    -      -       +      -
    386D  GLU*     5.0     0.9    -      -       -      +
    389D  ILE*     4.4    21.1    -      -       +      +
    467D  ARG*     4.4     2.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 353 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  PHE*     4.8     7.4    -      -       +      -
    311A  LYS*     3.6    33.2    -      -       +      +
     30D  MET*     6.0     1.1    -      -       +      -
    349D  ALA      3.0    22.4    +      -       -      +
    350D  ASN*     3.9    11.2    -      -       -      +
    351D  ALA      3.3     0.2    -      -       -      -
    352D  VAL*     1.3    71.9    -      -       -      +
    354D  ASP*     1.3    66.2    +      -       -      +
    355D  GLY*     3.4     0.7    +      -       -      -
    385D  ALA*     3.2    28.5    -      -       +      +
    388D  ALA*     3.7    23.6    -      -       +      +
    389D  ILE*     3.7    19.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 354 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  PHE*     6.1     1.2    -      -       -      -
     30A  MET*     6.0     0.3    -      -       -      +
    350A  ASN*     5.8     0.2    +      -       -      -
    310D  GLN*     3.1    26.0    +      -       -      +
    311D  LYS*     2.6    47.7    +      -       -      +
    314D  ILE*     3.4    26.7    -      -       +      +
    315D  GLY*     5.4     1.6    +      -       -      -
    318D  ASN*     3.9     3.8    -      -       -      +
    350D  ASN*     2.8    24.4    +      -       -      +
    351D  ALA      3.4     8.1    -      -       -      +
    352D  VAL      3.2     0.2    -      -       -      -
    353D  LEU*     1.3    77.7    -      -       -      +
    355D  GLY*     1.3    58.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 355 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314D  ILE*     3.5     6.8    -      -       -      +
    318D  ASN*     3.1    19.1    +      -       -      -
    324D  VAL*     4.0     0.5    -      -       -      +
    352D  VAL      3.0    10.5    +      -       -      -
    353D  LEU      4.3     1.1    -      -       -      -
    354D  ASP*     1.3    79.6    -      -       -      +
    356D  ALA*     1.3    66.0    +      -       -      +
    357D  ASP      3.5     1.4    +      -       -      -
    394D  LEU*     5.9     2.9    -      -       -      -
    445D  ARG*     2.6    32.6    +      -       -      -
----------------------------------------------------------
 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