3PXX

Crystal structure of carveol dehydrogenase from Mycobacterium avium bound to nicotinamide adenine dinucleotide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.173 

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This is version 1.3 of the entry. See complete history


Literature

Mycofactocin-associated mycobacterial dehydrogenases with non-exchangeable NAD cofactors.

Haft, D.H.Pierce, P.G.Mayclin, S.J.Sullivan, A.Gardberg, A.S.Abendroth, J.Begley, D.W.Phan, I.Q.Staker, B.L.Myler, P.J.Marathias, V.M.Lorimer, D.D.Edwards, T.E.

(2017) Sci Rep 7: 41074-41074

  • DOI: 10.1038/srep41074
  • Primary Citation of Related Structures:  
    3OEC, 3S55, 3T7C, 3SX2, 3PXX, 3PGX, 5EJ2, 4RGB, 3TSC

  • PubMed Abstract: 
  • During human infection, Mycobacterium tuberculosis (Mtb) survives the normally bacteriocidal phagosome of macrophages. Mtb and related species may be able to combat this harsh acidic environment which contains reactive oxygen species due to the mycobacterial genomes encoding a large number of dehydrogenases ...

    During human infection, Mycobacterium tuberculosis (Mtb) survives the normally bacteriocidal phagosome of macrophages. Mtb and related species may be able to combat this harsh acidic environment which contains reactive oxygen species due to the mycobacterial genomes encoding a large number of dehydrogenases. Typically, dehydrogenase cofactor binding sites are open to solvent, which allows NAD/NADH exchange to support multiple turnover. Interestingly, mycobacterial short chain dehydrogenases/reductases (SDRs) within family TIGR03971 contain an insertion at the NAD binding site. Here we present crystal structures of 9 mycobacterial SDRs in which the insertion buries the NAD cofactor except for a small portion of the nicotinamide ring. Line broadening and STD-NMR experiments did not show NAD or NADH exchange on the NMR timescale. STD-NMR demonstrated binding of the potential substrate carveol, the potential product carvone, the inhibitor tricyclazol, and an external redox partner 2,6-dichloroindophenol (DCIP). Therefore, these SDRs appear to contain a non-exchangeable NAD cofactor and may rely on an external redox partner, rather than cofactor exchange, for multiple turnover. Incidentally, these genes always appear in conjunction with the mftA gene, which encodes the short peptide MftA, and with other genes proposed to convert MftA into the external redox partner mycofactocin.


    Related Citations: 
    • Increasing the structural coverage of tuberculosis drug targets.
      Baugh, L., Phan, I., Begley, D.W., Clifton, M.C., Armour, B., Dranow, D.M., Taylor, B.M., Muruthi, M.M., Abendroth, J., Fairman, J.W., Fox, D., Dieterich, S.H., Staker, B.L., Gardberg, A.S., Choi, R., Hewitt, S.N., Napuli, A.J., Myers, J., Barrett, L.K., Zhang, Y., Ferrell, M., Mundt, E., Thompkins, K., Tran, N., Lyons-Abbott, S., Abramov, A., Sekar, A., Serbzhinskiy, D., Lorimer, D., Buchko, G.W., Stacy, R., Stewart, L.J., Edwards, T.E., Van Voorhis, W.C., Myler, P.J.
      (2015) Tuberculosis (Edinb) 95: 142

    Organizational Affiliation

    Beryllium Discovery Corp., 7869 NE Day Road West, Bainbridge Island, WA 98110, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Carveol dehydrogenaseA, B, C, D, E, F287Mycobacterium avium 104Mutation(s): 0 
Gene Names: MAV_2598
EC: 1.1.1.275
UniProt
Find proteins for A0A0H2ZV91 (Mycobacterium avium (strain 104))
Explore A0A0H2ZV91 
Go to UniProtKB:  A0A0H2ZV91
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 156.47α = 90
b = 147.51β = 102.49
c = 83.24γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-12-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2015-04-22
    Changes: Database references
  • Version 1.3: 2017-02-08
    Changes: Database references