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Asparagine synthetase B [glutamine-hydrolyzing]

UniProtKB accession:  P22106
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Go to UniProtKB:  P22106
UniProtKB description:  Catalyzes the ATP-dependent conversion of aspartate into asparagine, using glutamine as a source of nitrogen. Can also use ammonia as the nitrogen source in vitro, albeit with lower efficiency. As nucleotide substrates, ATP and dATP are utilized at a similar rate in both the glutamine- and ammonia-dependent reactions, whereas GTP utilization is only 15% that of ATP, and CTP, UTP, ITP and XTP are very poor or not substrates. Also exhibits glutaminase activity.
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