CBS (Beta-thionase, Serine sulfhydrase)

CBS, Cystathionine Beta-Synthase , catalyzes the first irreversible step of transsulfuration.The CBS enzyme is a homotetramer of 63-kD subunits and requires pyridoxal phosphate and heme for activity. The CBS gene, which is mapped to chromosome 21q22 , contains 23 exons, ranging in size from 42 to 299 bp.The human CBS protein can substitute for the endogenous yeast CBS protein in Saccharomyces cerevisiae.The catalytic domain of the CBS protein is located in the N-terminal 409 amino acids, and a regulatory domain is located in the C-terminal 142 amino acids.A mutation that deletes the C-terminal 145 amino acids of CBS could restore activity of several CBS mutant alleles found in homocystinurics. \n\nUniProt Number:\nP35520\n\nGene ID:\nCBS\n\nApplications:\nSuitable for use in Western Blot and Immunohistochemistry (Paraffin).\n\nRecommended Dilution:\nOptimal dilutions to be determined by the researcher.\n\nStorage and Handling:\nStore at -20?C for one year. After reconstitution, store at 4?C for one month. Can also be aliquoted and stored frozen at -20?C for long term.\nAvoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

144294

Size

100ug

Applications

IHC, WB

Hosts

Rabbit

Reactivities

Hum

Form

Supplied as a lyophilized powder. Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3. Reconstitution: Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1.Munke, M., Kraus, J., Watkins, P., Tanzi, R., Gusella, J., Millington Ward, A., Watson, M., Francke, U.Homocystinuria gene on human chromosome 21 mapped with cloned cystathionine beta-synthase probe and in situ hybridization of other chromosome 21 probes. (Abstract)Cytogenet. Cell Genet. 40: 706-707, 1985. \n 2.Kraus, J. P., Oliveriusova, J., Sokolova, J., Kraus, E., Vlcek, C., de Franchis, R., Maclean, K. N., Bao, L., Bukovska, G., Patterson, D., Paces, V., Ansorge, W., Kozich, V.The human cystathionine beta-synthase (CBS) gene: complete sequence, alternative splicing, and polymorphisms.Genomics 52: 312-324, 1998.\n3.Kruger, W. D., Cox, D. R.A yeast system for expression of human cystathionine beta-synthase: structural and functional conservation of the human and yeast genes.Proc. Nat. Acad. Sci. 91: 6614-6618, 1994.\n

Additional Info

Recognizes human CBS. No crossreactivity with other proteins.