Characterization of the human Nα-terminal acetyltransferase B enzymatic complex
نویسندگان
چکیده
منابع مشابه
Characterization of the human Nα-terminal acetyltransferase B enzymatic complex
BACKGROUND Human Nalpha-acetyltransferase complex B (hNatB) is integrated by hNaa20p (hNAT5/hNAT3) and hNaa25p (hMDM20) proteins. Previous data have shown that this enzymatic complex is implicated in cell cycle progression and carcinogenesis. In yeast this enzyme acetylates peptides composed by methionine and aspartic acid or glutamic acid in their first two positions respectively and it has be...
متن کاملComposition and biological significance of the human Nα-terminal acetyltransferases
Protein Nalpha-terminal acetylation is one of the most common protein modifications in eukaryotic cells, occurring on approximately 80% of soluble human proteins. An increasing number of studies links Nalpha-terminal acetylation to cell differentiation, cell cycle, cell survival, and cancer. Thus, Nalpha-terminal acetylation is an essential modification for normal cell function in humans. Still...
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We here describe a quick and easy method to quantitatively measure in vitro acetylation activity of not only N-terminal acetyltransferase (NAT) enzymes, but acetyltransferases using acetyl-coenzyme A as an acetyl donor in general.
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Neutral maltase activity (alpha-D-glucoside glucohydrolase; EC: 3.2.1.20) was measured in B and T lymphocytes from peripheral blood of normal subjects and patients suffering from chronic or acute lymphoid leukemias. Neutral maltase activity is undetectable in T cells from normal subjects as well as in patients with chronic or acute T-lymphoid leukemias. Conversely, whereas this enzyme activity ...
متن کاملIdentification of the human N(alpha)-acetyltransferase complex B (hNatB): a complex important for cell-cycle progression.
Protein N(alpha)-terminal acetylation is a conserved and widespread protein modification in eukaryotes. Several studies have linked it to normal cell function and cancer development, but nevertheless, little is known about its biological function. In yeast, protein N(alpha)-terminal acetylation is performed by the N-acetyltransferase complexes NatA, NatB and NatC. In humans, only the NatA compl...
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ژورنال
عنوان ژورنال: BMC Proceedings
سال: 2009
ISSN: 1753-6561
DOI: 10.1186/1753-6561-3-s6-s4