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- 文献和实验
- 技术资料
- 保存条件:
常温
- 保质期:
根据瓶身LOT号查询
- 英文名:
L-Asparagine
- 库存:
有现货
- 供应商:
浙江羽翔生物科技有限公司
- CAS号:
70-47-3
- 规格:
100G
属性
产品名称
L-天冬酰胺, ≥98% (HPLC)
质量水平
300
方案
≥98% (HPLC)
表单
powder
颜色
white
mp
235 °C (dec.) (lit.)
应用
detection
SMILES字符串
N[C@@H](CC(N)=O)C(O)=O
InChI
1S/C4H8N2O3/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H2,6,7)(H,8,9)/t2-/m0/s1
InChI key
DCXYFEDJOCDNAF-REOHCLBHSA-N
应用
- 鉴定和定量通过羟基自由基氧化蛋白质和肽释放的游离氨基酸
- 研究氨基酸对果蝇食物消耗的促进作用
- 研究非酶促糖异生
生化/生理作用
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文献和实验Distinct physiological roles for the two L-asparaginase isozymes of Escherichia coli.
Escherichia coli expresses two L-asparaginase (EC 3.5.1.1) isozymes: L-asparaginse I, which is a low affinity, cytoplasmic enzyme that is expressed constitutively, and L-asparaginase II, a high affinity periplasmic enzyme that is under complex co-transcriptional regulation by both Fnr and Crp. The distinct localisation and regulation of these enzymes suggest different roles. To define these roles, a set of isogenic mutants was constructed that lacked either or both enzymes. Evidence is provided that L-asparaginase II, in contrast to L-asparaginase I, can be used in the provision of an anaerobic electron acceptor when using a non-fermentable carbon source in the presence of excess nitrogen.
,使其凝固。复查最终pH应为6.8~7.0。 试验方法:用琼脂培养物穿刺接种,放在22~25℃培养,每天观察结果,记录液化时间。或放在36士1℃培养,每天取出,放冰箱内30min后再观察结果。 11、苯丙氨酸培养基 成分: 酵母浸膏 3g DI-苯丙氨酸(或L-苯丙氨酸1g) 2g 磷酸氢二钠 1g 氯化钠 5g 琼脂 12g 蒸馏水 1000ml 制法:加热溶解后分装试管,121℃
Silane and Poly-L-Lysine Coating of Microscope Slides
free environment for 5 minutes. Poly-L-Lysine Coating a) Smear 20ul of poly-l-lysine over each slide. b) Air dry in a dust free environment. Silated Slides a) To 300mls acetone add 6mls Aminopropyltriethoxysilane solution (Sigma
Pyrrolizidine alkaloid clivorine inhibits human normal liver L-02 cells growth and activates p38 mitogen-activated protein kinase in L-02 cellsAbstractClivorine, a pyrrolizidine alkaloid extracted from Chinese medicinal plant Ligularia hodgsonii
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