Affinity labelling of the GM2 -activator protein
نویسندگان
چکیده
منابع مشابه
A protein activator for the enzymic hydrolysis of GM2 ganglioside.
A protein activator (GMz-activator) specific for stimulating the hydrolysis of G M ~ ganglioside (GalNAcb1 4GalC3 + 2aNeuAc]/?l-+ 4Glcb1-+ 1’Cer) by &hexosaminidase A has been purified over 1OS-fold with a high yield from human liver. The purification procedure includes the adjustment of the pH of liver extract to pH 4.3, followed by ammonium sulfate precipitation, Sephadex G-200 filtration, an...
متن کاملTwo polymorphisms for the human GM2 activator protein gene.
Source/Description: A 300 bp HincII/EcoRI fragment of the human G^ activation protein cDNA (1) was subcloned into Bluescript vector and used as a probe. Polymorphism: Mspl identifies a two allele polymorphism with bands at either 3.4 kb (Al) or 2.9 kb (A2) and invariant bands at 1.0 kb, 1.8 kb and 4.0 kb. Rsal identifies a two allele polymorphism with a band at either 4.1 kb (Bl) or 3.4 kb (B2)...
متن کاملOxidized Low-density Lipoprotein Upregulates GM2 Activator Protein Gene Expression
Oxidized low-density lipoprotein (LDL) has been shown to be a powerful regulator of gene expression in monocyte-derived macrophage. To determine the effects of oxidized LDL on macrophage gene expression, macrophages incubated with native or oxidized LDL were analyzed by differential display technique. The differentially expressed cDNA (387 bp) fragment by oxidized LDL showed 100% homology to th...
متن کاملCombined replacement effects of human modified β-hexosaminidase B and GM2 activator protein on GM2 gangliosidoses fibroblasts
GM2 gangliosidoses are autosomal recessive lysosomal storage diseases (LSDs) caused by mutations in the HEXA, HEXB and GM2A genes, which encode the human lysosomal β-hexosaminidase (Hex) α- and β-subunits, and GM2 activator protein (GM2A), respectively. These diseases are associated with excessive accumulation of GM2 ganglioside (GM2) in the brains of patients with neurological symptoms. Here w...
متن کاملEffect of GM2 activator protein on the enzymatic hydrolysis of phospholipids and sphingomyelin.
GM2 activator protein (GM2AP) is a specific protein cofactor that stimulates the enzymatic hydrolysis of the GalNAc from GM2, a sialic acid containing glycosphingolipid, both in vitro and in lysosomes. While phospholipids together with glycosphingolipids are important membrane constituents, little is known about the possible effect of GM2AP on the hydrolysis of phospholipids. Several recent rep...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1985
ISSN: 0014-5793
DOI: 10.1016/0014-5793(85)80751-1