76427
青霉素酰胺酶 来源于大肠杆菌
5-10 units/mg protein
别名:
青霉素酰基转移酶, 青霉素酰胺水解酶
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关于此项目
化学文摘社编号:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-753-8
MDL number:
Specific activity:
5-10 units/mg protein
Biological source:
Escherichia coli
General description
青霉素酰胺酶是具有A链和B链（分别为209和566个氨基酸）的周质80K异二聚体。它广泛分布于微生物中，包括细菌、酵母和丝状真菌。在所有来源中，对来自大肠杆菌的酶表征最充分，并且常用于工业应用。
Application
青霉素酰胺酶被用于研究其在抗生素降解中对AHL（N-酰基高丝氨酸内酯）释放脂肪酸和HSL（高丝氨酸内酯）的影响。 在乳酸杆菌中胆汁盐水解酶和青霉素酰基转移酶家族成员的功能分析研究中，它被用作青霉素G酰基转移酶活性检测的阳性对照。 青霉素酰胺酶可用于从青霉素-G合成6-氨基青霉烷酸以及用于β-内酰胺抗生素的工业生产。
Biochem/physiol Actions
通过疏水性蛋白质层析在大肠杆菌中生物合成青霉素酰胺酶是一个由代谢碳源（如多元醇、羧酸等）调节的诱导反应。它还受到分解代谢物抑制的影响。 它通过酰基-酶中间体催化酰胺键的形成。
Other Notes
1个酶活性单位是指在pH 7.6、37°C条件下，每分钟水解1 μmol苄青霉素所需的酶量
表征；对映选择性拆分；氨苄西林和苄青霉素的合成
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
常规特殊物品
此项目有
Penicillin acylase (bacterial).
T A Savidge et al.
Methods in enzymology, 43, 705-721 (1975-01-01)
Yi-Han Lin et al.
Molecular microbiology, 47(3), 849-860 (2003-01-22)
N-acylhomoserine lactones (AHLs) are used as signal molecules by many quorum-sensing Proteobacteria. Diverse plant and animal pathogens use AHLs to regulate infection and virulence functions. These signals are subject to biological inactivation by AHL-lactonases and AHL-acylases. Previously, little was known
V Kasche et al.
Hoppe-Seyler's Zeitschrift fur physiologische Chemie, 365(12), 1435-1443 (1984-12-01)
Hydrophobic protein chromatography was used to prepare homogeneous fractions of penicillin amidase (EC 3.5.1.11) from E. coli. The apparent ratios of the rate constants for the deacylation of the acyl-penicillin amidase formed in the hydrolysis of phenylacetylglycine or D-phenylglycine methyl
Penicillin Acylase in the Industrial Production of ?-Lactam Antibiotics
Bruggink A, Roos EC, Vroom ED
Organic Process Research & Development, 2(2), 128-133 (1998)
H J Duggleby et al.
Nature, 373(6511), 264-268 (1995-01-19)
Penicillin acylase (penicillin amidohydrolase, EC 3.5.1.11) is widely distributed among microorganisms, including bacteria, yeast and filamentous fungi. It is used on an industrial scale for the production of 6-aminopenicillanic acid, the starting material for the synthesis of semi-synthetic penicillins. Its
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