TenI

• Description: thiazole tautomerase
  
  

Gene name	tenI
Synonyms
Essential	no
Product	thiazole tautomerase
Function	biosynthesis of thiamine
Gene expression levels in SubtiExpress: tenI
Metabolic function and regulation of this protein in SubtiPathways: Thiamin
MW, pI	22 kDa, 8.132
Gene length, protein length	615 bp, 205 aa
Immediate neighbours	tenA, thiO
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

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: BSU11660

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: TMP-PPase family (according to Swiss-Prot)

• Paralogous protein(s): ThiE

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure: 1YAD

• UniProt: P25053

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: tenA-tenI-thiO-thiS-thiG-thiF-thiD PubMed

• Expression browser: tenI PubMed

• Sigma factor:

• Regulation:
  • repressed by thiamine (Thi-box) PubMed

• Regulatory mechanism:
  • Thi-box: RNA switch PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Reviews

Tadhg P Begley, Steven E Ealick, Fred W McLafferty
Thiamin biosynthesis: still yielding fascinating biological chemistry.
Biochem Soc Trans: 2012, 40(3);555-60
[PubMed:22616866] [WorldCat.org] [DOI] (I p)

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

Amrita B Hazra, Ying Han, Abhishek Chatterjee, Yang Zhang, Rung-Yi Lai, Steven E Ealick, Tadhg P Begley
A missing enzyme in thiamin thiazole biosynthesis: identification of TenI as a thiazole tautomerase.
J Am Chem Soc: 2011, 133(24);9311-9
[PubMed:21534620] [WorldCat.org] [DOI] (I 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)

A S Pang, S Nathoo, S L Wong
Cloning and characterization of a pair of novel genes that regulate production of extracellular enzymes in Bacillus subtilis.
J Bacteriol: 1991, 173(1);46-54
[PubMed:1898926] [WorldCat.org] [DOI] (P p)