Molecular Cloning of the CDNA Encoding a Murine Sialic Acid-specific 9-O-acetylesterase and RNA Expression in Cells of Hematopoietic and Non-hematopoietic Origin
Overview
Authors
Affiliations
We describe the isolation of a cDNA encoding a murine sialic acid-specific 9-O-acetylesterase as well as its expression pattern in cells of both hematopoietic and non-hematopoietic origin. This enzyme catalyzes the removal of O-acetyl ester groups from position 9 of the parent sialic acid N-acetylneuraminic acid. The cDNA is 2105 nt in length and encodes a protein of 541 amino acids with a predicted molecular weight of 61 kDa, not including oligosaccharides linked to eight potential N-glycosylation sites. The cDNA encoding the acetylesterase displays a widespread distribution in various cell lines and tissues. Expression studies of B lineage cell lines and primary fetal liver cells revealed a developmentally regulated expression pattern in cells of hematopoietic origin. Given the importance of 9-O-acetylation of sialic acids, the cloning of the cDNA encoding a sialic acid-specific 9-O-acetylesterase will be helpful in understanding further the regulation of this post-translational modification and the biological consequences thereof.
Sialic acid O-acetylation: From biosynthesis to roles in health and disease.
Visser E, Moons S, Timmermans S, de Jong H, Boltje T, Bull C J Biol Chem. 2021; 297(2):100906.
PMID: 34157283 PMC: 8319020. DOI: 10.1016/j.jbc.2021.100906.
Targeting -Acetyl-GD2 Ganglioside for Cancer Immunotherapy.
Fleurence J, Fougeray S, Bahri M, Cochonneau D, Clemenceau B, Paris F J Immunol Res. 2017; 2017:5604891.
PMID: 28154831 PMC: 5244029. DOI: 10.1155/2017/5604891.
Functions and Biosynthesis of O-Acetylated Sialic Acids.
Mandal C, Schwartz-Albiez R, Vlasak R Top Curr Chem. 2012; 366:1-30.
PMID: 22371169 PMC: 7120186. DOI: 10.1007/128_2011_310.
The metabolic serine hydrolases and their functions in mammalian physiology and disease.
Long J, Cravatt B Chem Rev. 2011; 111(10):6022-63.
PMID: 21696217 PMC: 3192302. DOI: 10.1021/cr200075y.
Rangarajan E, Ruane K, Proteau A, Schrag J, Valladares R, Gonzalez C Protein Sci. 2011; 20(7):1208-19.
PMID: 21557376 PMC: 3149194. DOI: 10.1002/pro.649.