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一般描述
L-Alanine Dehydrogenase has a N-terminal substrate-binding domain and a C-terminal NAD-binding domain.
应用
L-Alanine Dehydrogenase from Bacillus subtilis has been used in the carbon nanotube columns for H2-driven biocatalysis hydrogenation studies.
L-Alanine dehydrogenase converts L-alanine to pyruvate and ammonium. L-Alanine dehydrogenase from Bacillus subtilis may be used to study enzyme inactivation and protection .
生化/生理作用
L-Alanine Dehydrogenase is essential for sporulation in Bacillus subtilis.
L-Alanine dehydrogenase is a stereospecific dehydrogenase that catalyzes the reversible deamination of L-alanine to pyruvate and ammonium. It is important for the generation of pyruvate during sporulation. L-Alanine dehydrogenase from Bacillus subtilis has a predominately ordered kinetic mechanism in which NAD binds before L-alanine. Subsequently, ammonia, pyruvate and NADH are released in that specific order. Optimal pH for the amination reaction is 8.8-9.0, whereas it is 10-10.5 for the deamination reaction. The enzyme is inactivated by divalent metal ions and p-chloromercuribenzoate, mercuric ion being most effective. The inactivation may be reversed by L- or D-cysteine.
单位定义
One unit will convert 1.0 μmole of L-alanine to pyruvate and NH3 per min at pH 10.0 at 25 °C.
外形
Suspension in 2.4 M (NH4)2SO4 solution, pH 7.0
WGK
WGK 2
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
法规信息
常规特殊物品
Alanine dehydrogenase (ald) is required for normal sporulation in Bacillus subtilis.
Siranosian K, et al.
Journal of Bacteriology, 175(21), 6789-6796 (1993)
Domain motions and functionally-key residues of l-alanine dehydrogenase revealed by an elastic network model
Li XY, et al.
International Journal of Molecular Sciences, 16(12), 29383-29397 (2015)
Nadine Bongaerts et al.
Nature communications, 13(1), 3905-3905 (2022-07-08)
Whole-cell screening for Mycobacterium tuberculosis (Mtb) inhibitors is complicated by the pathogen's slow growth and biocontainment requirements. Here we present a synthetic biology framework for assaying Mtb drug targets in engineered E. coli. We construct Target Essential Surrogate E. coli
H 2-Driven biocatalytic hydrogenation in continuous flow using enzyme-modified carbon nanotube columns
Zor C, et al.
Chemical Communications (Cambridge, England), 53(71), 9839-9841 (2017)
Karin Denger et al.
Microbiology (Reading, England), 152(Pt 11), 3197-3206 (2006-11-01)
A degradative pathway for taurine (2-aminoethanesulfonate) in Rhodobacter sphaeroides 2.4.1 was proposed by Brüggemann et al. (2004) (Microbiology 150, 805-816) on the basis of a partial genome sequence. In the present study, R. sphaeroides 2.4.1 was found to grow exponentially
商品
以硫酸铵悬浮液形式提供的酶的使用指南
Instructions for working with enzymes supplied as ammonium sulfate suspensions
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