Application
对于胰蛋白酶消化肽,胰蛋白酶:肽的使用比例约为1:100至1:20。本品的典型用途是使贴壁细胞从培养表面脱落。 使细胞解离所需的胰蛋白酶浓度主要取决于细胞类型和培养物代数。 Trypsins也被用于细胞培养过程中的细胞再悬浮,在蛋白质组学研究中用于蛋白质的消化,以及在各种凝胶消化中。 其他的应用包括通过基于膜的技术评估结晶,以及在一项研究中确定蛋白质折叠速率和产量可以被动力学陷阱的存在所限制。
Biochem/physiol Actions
胰蛋白酶可切割赖氨酸和精氨酸残基的C末端肽段。 如果酸性残基位于切割位点的任意一侧,则该反应的水解速度减慢,并且如果脯氨酸残基位于切割位点的羧基侧,则水解停止。 胰蛋白酶活性的最佳pH条件为7-9。 胰蛋白酶还可以切割氨基酸合成衍生物的酯和酰胺键。 将EDTA添加到胰蛋白酶溶液中作为螯合剂,用于中和钙离子和镁离子以防止其抑制胰蛋白酶活性。 去除这些离子会增加酶活性。
丝氨酸蛋白酶抑制剂(包括DFP、TLCK、APMSF、AEBSEF和抑肽酶等)会抑制胰蛋白酶。
丝氨酸蛋白酶抑制剂(包括DFP、TLCK、APMSF、AEBSEF和抑肽酶等)会抑制胰蛋白酶。
Other Notes
一个BAEE单位以BAEE作为底物,在25°C、pH 7.6条件下每分钟每毫升产生0.001的ΔA253 。一个BTEE单位=320个ATEE单位。反应体积=3.2mL(1cm的光径)。
一个酶活性单位是指在pH 7.6和25℃条件下,每分钟使253 nm处的吸光度降低0.001所需的酶量(精氨酸乙酯,目录号12880,作为底物)
菜籽蛋白的酶促水解
销售限制可能适用
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
11 - Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
法规信息
新产品
此项目有
M. Lacroix et al.
Can. Inst. Food Sci Technol. J., 16, 242-242 (1983)
Anamaria Ioana Paştiu et al.
Parasites & vectors, 12(1), 586-586 (2019-12-18)
Foodborne toxoplasmosis in humans can be due to the exposure to tissue cysts of Toxoplasma gondii through the consumption of meat, including pork, of infected animals. Traditional Romanian food habits include pork as the preferred meat, while backyard pig rearing
Different methods of detaching adherent cells significantly affect the detection of TRAIL receptors.
Bo Zhang et al.
Tumori, 98(6), 800-803 (2013-02-08)
As a powerful technique allowing analysis of large numbers of cells, fluorescence-activated cell sorting (FACS) is used more and more widely. For FACS analysis, adherent cells are usually detached by trypsinization, followed by centrifugation and resuspension. However, trypsinization can cut
Ying Zhang et al.
Molecular bioSystems, 9(3), 492-500 (2013-01-31)
As two of the most common and important post-translational modifications (PTMs) of proteins, glycosylation and phosphorylation play critical roles in biological processes. Because of the low abundance of phosphopeptides/glycopeptides, specific and sensitive strategies are especially indispensable for the identification of
Neisseria conserved hypothetical protein DMP12 is a DNA mimic that binds to histone-like HU protein.
Hao-Ching Wang et al.
Nucleic acids research, 41(9), 5127-5138 (2013-03-28)
DNA mimic proteins are unique factors that control the DNA-binding activity of target proteins by directly occupying their DNA-binding sites. To date, only a few DNA mimic proteins have been reported and their functions analyzed. Here, we present evidence that
我们的科学家团队拥有各种研究领域经验,包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.
联系客户支持
