3-Dehydroquinate dehydratase (aroD), Salmonella typhi, recombinant

Organism: Salmonella typhi. Source: Yeast. Expression Region: 1-252aa. Protein Length: Full Length. Tag Info: N-terminal 6xHis-tagged. Target Protein Sequence: MKTVTVKNLI IGEGMPKIIV SLMGRDINSV KAEALAYREA TFDILEWRVD HFMDIASTQS VLTAARVIRD AMPDIPLLFT FRSAKEGGEQ TITTQHYLTL NRAAIDSGLV DMIDLELFTG DADVKATVDY AHAHNVYVVM SNHDFHQTPS AEEMVLRLRK MQALGADIPK IAVMPQSKHD VLTLLTATLE MQQHYADRPV ITMSMAKEGV ISRLAGEVFG SAATFGAVKQ ASAPGQIAVN DLRSVLMILH NA. Purity: Greater than 90% as determined by SDS-PAGE. Endotoxin: Not test. Biological Activity: n/a. 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. 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 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C. Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 °C for up to one week. Relevance: Involved in the third step of the chorismate pathway, which leads to the biosynthesis of aromatic amino acids. Catalyzes the cis-dehydration of 3-dehydroquinate (DHQ) and introduces the first double bond of the aromatic ring to yield 3-dehydroshikimate. The reaction involves the formation of an imine intermediate between the keto group of 3-dehydroquinate and the epsylon-amino group of Lys-170 at the active site. Reference: Molecular cloning and characterization of the aroD gene encoding 3-dehydroquinase from Salmonella typhi.Servos S., Chatfield S., Hone D., Levine M., Dimitriadis G., Pickard D., Dougan G., Fairweather N., Charles I.G.J. Gen. Microbiol. 137:147-152(1991). Function: Involved in the third step of the chorismate pathway, which leads to the biosynthesis of aromatic amino acids. Catalyzes the cis-dehydration of 3-dehydroquinate (DHQ) and introduces the first double bond of the aromatic ring to yield 3-dehydroshikimate. The reaction involves the formation of an imine intermediate between the keto group of 3-dehydroquinate and the epsylon-amino group of Lys-170 at the active site.