Alternative Name(s):

Species: (Organism)

Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)

Gene Names:

pks13

Tag info:

N-terminal 6xHis-MBP-tagged

Target Protein AA Sequence:

QIDGFVRTLRARPEAGGKVPVFVFHPAGGSTVVYEPLLGRLPADTPMYGFERVEGSIEERAQQYVPKLIEMQGDGPYVLVGWSLGGVLAYACAIGLRRLGKDVRFVGLIDAVRAGEEIPQTKEEIRKRWDRYAAFAEKTFNVTIPAIPYEQLEELDDEGQVRFVLDAVSQSGVQIPAGIIEHQRTSYLDNRAIDTAQIQPYDGHVTLYMADRYHDDAIMFEPRYAVRQPDGGWGEYVSDLEVVPIGGEHIQAIDEPIIAKVGEHMSRALGQIEADRTSEVGKQ

Expression Region:

1451-1733aa

Subcellular Location:

Tissue Specificity:

Protein Length:

Partial

Pathway:

Mol. Weight:

75.2 kDa

Purity:

Greater than 90% as determined by SDS-PAGE.

Form:

Liquid or Lyophilized powder

Buffer:

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.

Research Areas:

Others

Function:

Involvement in disease:

Relevance:

Involved in the biosynthesis of mycolic acids. Forms, with FadD32, the initiation module of the mycolic condensation system. Synthesizes, in coupled reaction with FadD32, the biosynthetic precursors of mycolic acids, alpha-alkyl beta-ketoacids, via the condensation of two long chain fatty acid derivatives, a very long meromycoloyl-AMP and a shorter 2-carboxyacyl-CoA. The acyl chain of the acyl-AMP produced by FadD32 is specifically transferred onto the N-terminal ACP domain of Pks13, and then transferred onto the KS domain. The extender unit carboxyacyl-CoA is specifically loaded onto the AT domain, which catalyzes the covalent attachment of the carboxyacyl chain to its active site, and its subsequent transfer onto the P-pant arm of the C-terminal ACP domain. The KS domain catalyzes the condensation between the two loaded fatty acyl chains to produce an alpha-alkyl beta-ketothioester linked to the C-ACP domain. Then, the thioesterase-like domain acts as a transacylase and is responsible for both the release and the transfer of the alpha-alkyl beta-ketoacyl chain onto a polyol acceptor molecule, particularly trehalose, leading to the formation of the trehalose monomycolate precursor.

Reconstitution:

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Protein Families:

Reference:

"The polyketide synthase Pks13 catalyzes a novel mechanism of lipid transfer in mycobacteria." Gavalda S., Bardou F., Laval F., Bon C., Malaga W., Chalut C., Guilhot C., Mourey L., Daffe M., Quemard A. Chem. Biol. 21:1660-1669(2014)