Description
Chaperone component of an atypical, type II toxin-antitoxin chaperone (TAC) system. Prevents antitoxin HigA1 aggregation in vitro at a 1:3 chaperone:antitoxin ratio, probably also protects antitoxin HigA1 from protease. Required for neutralization of toxin HigB1 upon ectopic expression in Mycobacterium marinum or E.coli. When expressed in E.coli complements a secB deletion, restores export of OmpA and MBP and inhibits aggregation of proOmpC although it is less efficient than endogenous SecB. Complements the general chaperone function of E.coli SecB less well.
Family
Belongs to the SecB-like family.
Species
Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
Sequence
MTDRTDADDLDLQRVGARLAARAQIRDIRLLRTQAAVHRAPKPAQGLTYDLEFEPAVDADPATISAFVVRISCHLRIQNQAADDDVKEGDTKDETQDVATADFEFAALFDYHLQEGEDDPTEEELTAYAATTGRFALYPYIREYVYDLTGRLALPPLTLEILSRPMPVSPGAQWPATRGTP
Simulated SDS-PAGE
(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)
Safety
Upon ordering, we will perform rigorous biosecurity and export control screening to ensure that order fulfillment is consistent with all legal and regulatory guidance.
Protein synthesis service