Aspartate Kinase (Crude Enzyme)
产物编号
产物名称
产物包装
产物价格
XY3685-1L
1L
10288.00元
Aspartate Kinase，中文名为天冬氨酸激酶，催化天冬氨酸的磷酸化。本产物为大肠杆菌表达的天冬氨酸激酶，并经简单纯化获得的可以确保达到一定酶活力的粗酶液。 &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;由于本产物需新鲜制备，确认订购后约6个工作日才可以发货。 &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;本产物可以提供十公斤、百公斤乃至吨级的粗酶液。 Aspartate kinase (aspartokinase, aspartic kinase) is an enzyme that catalyzes the phosphorylation of the amino acid aspartate. This reaction is the first step in the biosynthesis of three essential amino acids: methionine, lysine, and threonine, known as the "aspartate family". The gene for aspartokinase is present only in microorganisms and plants; it is not present in animals, which must obtain aspartate-family amino acids in their diet.In Escherichia coli, aspartokinase is present as three independently regulated isozymes, each of which is specific to one of the three downstream biochemical pathways. This allows the independent regulation of the rates of methionine, lysine, and threonine production. The forms that produce threonine and lysine are subject to feedback inhibition, and all three can be repressed at the level of gene expression by high concentrations of their end-products.Absence from animals makes these enzymes key targets for new herbicides and biocides and for improvements in nutritional value of crops. This product with the indicated enzyme activity was briefly purified from engineered E.coli. 产物详细信息见下表:
About this product
Name
Aspartate Kinase (Crude Enzyme)；天冬氨酸激酶(粗酶液)
Application
催化天冬氨酸的磷酸化
Appearance
Clear to translucent yellow solution
Enzyme activity
Undetermined
About this enzyme
Aspartate Kinase；天冬氨酸激酶
CAS Number
9012-50-4
EC Number
2.7.2.4
Enzymatic Reaction
ATP + L-aspartate = ADP + 4-phospho-L-aspartate
Synonyms
aspartokinase; AK; β-aspartokinase; aspartic kinase
Systematic name
ATP:L-aspartate 4-phosphotransferase
Cofactor(s)
-
agriculture
包装清单：
包装
XY3685-100ml
100ml
—
说明书
1份
保存条件： &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;-20℃或更低温度保存，至少1个月有效。 注意事项： &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;由于本产物需新鲜制备，在您确认订购后约6个工作日才能发货。 &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;粗酶液的每次冻融均可能会引起部分失活，所以收到酶液后请根据需要进行分装，并置于-20℃或更低温度保存。 &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;随着保存时间的延长，酶活力会有一定程度的下降，收到产物后应尽快使用。 &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;本产物在生产和保存的过程中可能会有混浊或沉淀产生，融化后混匀即可，不影响正常使用。 &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;本产物**于专业人员的科学研究用，不得用于临床诊断或**，不得用于食品或药品，不得存放于普通住宅内。 &苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;&苍产蝉辫;为了您的**和健康，请穿实验服并戴一次性手套操作。