TenA

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  • Description: thiaminase II

Gene name tenA
Synonyms
Essential no
Product thiaminase II
Function thiamine salvage
Metabolic function and regulation of this protein in SubtiPathways:
Thiamin
MW, pI 27 kDa, 4.99
Gene length, protein length 708 bp, 236 aa
Immediate neighbours yjbQ, tenI
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
TenA context.gif
This image was kindly provided by SubtiList







Categories containing this gene/protein

biosynthesis of cofactors

This gene is a member of the following regulons

Thi-box

The gene

Basic information

  • Locus tag: BSU11650

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Thiamine + H2O = 4-amino-5-hydroxymethyl-2-methylpyrimidine + 5-(2-hydroxyethyl)-4-methylthiazole (according to Swiss-Prot)
  • Protein family: thiaminase-2 family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • Structure: 1YAF, 2QCX (complex with formyl aminommethyl pyrimidine)
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Sigma factor:
  • Additional information:

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References

Reviews

T P Begley, D M Downs, S E Ealick, F W McLafferty, A P Van Loon, S Taylor, N Campobasso, H J Chiu, C Kinsland, J J Reddick, J Xi
Thiamin biosynthesis in prokaryotes.
Arch Microbiol: 1999, 171(5);293-300
[PubMed:10382260] [WorldCat.org] [DOI] (P p)

Original publications

Amy L Jenkins, Yang Zhang, Steven E Ealick, Tadhg P Begley
Mutagenesis studies on TenA: a thiamin salvage enzyme from Bacillus subtilis.
Bioorg Chem: 2008, 36(1);29-32
[PubMed:18054064] [WorldCat.org] [DOI] (I p)

Amy Haas Jenkins, Ghislain Schyns, Sébastien Potot, Guangxing Sun, Tadhg P Begley
A new thiamin salvage pathway.
Nat Chem Biol: 2007, 3(8);492-7
[PubMed:17618314] [WorldCat.org] [DOI] (P p)

Narasimhan Sudarsan, Smadar Cohen-Chalamish, Shingo Nakamura, Gail Mitchell Emilsson, Ronald R Breaker
Thiamine pyrophosphate riboswitches are targets for the antimicrobial compound pyrithiamine.
Chem Biol: 2005, 12(12);1325-35
[PubMed:16356850] [WorldCat.org] [DOI] (P p)

Angela V Toms, Amy L Haas, Joo-Heon Park, Tadhg P Begley, Steven E Ealick
Structural characterization of the regulatory proteins TenA and TenI from Bacillus subtilis and identification of TenA as a thiaminase II.
Biochemistry: 2005, 44(7);2319-29
[PubMed:15709744] [WorldCat.org] [DOI] (P p)