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kcat of β-carbonic anhydrases

Range	1.7E+4 - 2.3E+5 sec^-1
Organism	Various
Reference	Heinhorst S, Williams EB, Cai F, Murin CD, Shively JM, Cannon GC. Characterization of the carboxysomal carbonic anhydrase CsoSCA from Halothiobacillus neapolitanus. J Bacteriol. 2006 Dec188(23):8087-94. p.8092 left column 3rd paragraphPubMed ID17012396
Primary Source	Hiltonen, T., H. Bjoerkbacka, C. Forsman, A. K. Clarke, and G. Samuelsson. 1998. Intracellular beta-carbonic anhydrase of the unicellular green alga Coccomyxa. Plant Physiol. 117: 1341–1349. & Larsson, S., H. Bjoerkbacka, C. Forsman, G. Samuelsson, and O. Olsson. 1997. Molecular cloning and biochemical characterization of carbonic anhydrase from Populus tremula  tremuloides. Plant Mol. Biol. 34: 583–592. & Smith, K. S., and J. G. Ferry. 2000. Prokaryotic carbonic anhydrases. FEMS Microbiol. Rev. 24: 335–366. & Smith, K. S., C. Jakubzick, T. S. Whittam, and J. G. Ferry. 1999. Carbonic anhydrase is an ancient enzyme widespread in prokaryotes. Proc. Natl. Acad. Sci. USA 96: 15184–15189.PubMed ID9701590, 9247540, 10978542, 10611359
Comments	"The catalytic ability of rCsoSCA, as indicated by its kcat and efficiency of CO2 hydration, is well within the range of values reported for other ß-CAs (1.7?10^4 to 2.3?10^5s^-1) (primary sources)."
Entered by	Uri M
ID	110006