Family :

Protease and Enzyme

Catalog No. :


Protein :


UniProt :


Organism :

Mycobacterium tuberculosis

Expression system :

E. coli

Tag :

No tag

Sequence :


Assay :

Structure :

Inquiry :

Symbol/Gene Name:  otsA

Alias:  Trehalose-6-phosphate synthase,TPS,Alpha,alpha-trehalose-phosphate synthase [UDP-forming],Osmoregulatory trehalose synthesis protein A,OtsA

Uniprot: P9WN11

Background: Involved in the production of glycogen and alpha-glucan via the TreS-Pep2 branch involved in the biosynthesis of maltose-1-phosphate (M1P), and probably in the osmoprotection via the biosynthesis of trehalose (PubMed:12473104, PubMed:27513637). Catalyzes the transfer of glucose from UDP-glucose (UDP-Glc) to D-glucose 6-phosphate (Glc-6-P) to form trehalose-6-phosphate (PubMed:12473104). Is specific for the glucosyl acceptor (Glc-6-P cannot be replaced by either mannose-6-P, fructose-6-P or glucosamine-6-P), but any of the glucose sugar nucleotides can be used as glucosyl donors (PubMed:12473104). It is more active with the purine sugar nucleotides than with the pyrimidine sugar nucleotides (PubMed:12473104).

Construct: GG-otsA(M1-G500 end) (TB enzyme)

Expression Host: E. coli

Purity:  90%

Formulation: 50 mM Tris-HCl (pH7.5), 200 mM NaCl, 20% glycerol 

Supplied as sterile

Please contact us for any concerns or special requirements.

Please refer to the specific buffer information in the hard copy of CoA.


< 0.01 EU per μg of the protein


Liquid. It is shipped out with blue ice.

Stability & Storage:

Samples are stable for up to twelve months from date of receipt at -20 to -80

Store it under sterile conditions at -20 to -80. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.