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Merck
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Key Documents

C8118

Sigma-Aldrich

胃促胰酶 人

recombinant, expressed in Pichia pastoris

同義詞:

肥大细胞蛋白酶 I

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About This Item

CAS號碼:
酶委員會編號:
MDL號碼:
分類程式碼代碼:
12352204
NACRES:
NA.54

重組細胞

expressed in Pichia pastoris

品質等級

形狀

liquid

比活性

≥40 units/mg protein

分子量

~37 kDa by SDS-PAGE

濃度

125-400 μg/mL

UniProt登錄號

應用

diagnostic assay manufacturing

運輸包裝

dry ice

儲存溫度

−20°C

基因資訊

human ... CMA1(1215)

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應用

在一项研究中,使用人糜酶来评估三七花提取物对心脏重构中TGFβ/ Smad信号转导途径的影响。 人糜酶也已被用于一项研究中,以研究链脲佐菌素处理的人糜酶转基因小鼠的血糖水平和存活率。
胸苷酶与血管紧张素II的产生和大内皮素的裂解有关。研究表明它可能与血管增生、心肌梗塞和皮炎有关。

生化/生理作用

该酶可迅速将血管紧张素 I 转化为血管紧张素 II。酶活性的最适 pH 值为 7.5 ~ 9.0。大豆胰蛋白酶抑制剂、苯甲基磺酰氟和糜蛋白酶抑制剂可抑制酶的活性。

物理性質

糜蛋白酶是一种主要存在于肥大细胞的组织蛋白酶G样S1丝氨酸蛋白酶。它的分子量约为30 kDa,但在SDS-PAGE上的表观分子量约为37 kDa。

單位定義

在 pH 7.8 和 25°C 条件下,1 个单元每分钟水解 1 μmol N-苯甲酰-L-酪氨酸乙酯 (BTEE)。用于测定酶活性的试验缓冲液含 27 mM Tris-HCl (pH 7.8)、150 mM NaCl 和 0.43 mM BTEE。

外觀

以溶于 20 mM Tris、0.8 MNaCl 和 25% 甘油的溶液 (pH 7.6) 形式提供

儲存類別代碼

10 - Combustible liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


分析證明 (COA)

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Ananya Roy et al.
The Journal of biological chemistry, 289(1), 237-250 (2013-11-22)
During infection and tissue damage, virulence factors and alarmins are pro-inflammatory and induce activation of various immune cells including macrophages and mast cells (MCs). Activated MCs instantly release preformed inflammatory mediators, including several proteases. The chymase mouse mast cell protease
Devandir Antonio de Souza et al.
PloS one, 7(7), e40790-e40790 (2012-07-21)
Tumor cells are surrounded by infiltrating inflammatory cells, such as lymphocytes, neutrophils, macrophages, and mast cells. A body of evidence indicates that mast cells are associated with various types of tumors. Although role of mast cells can be directly related
Jacco J de Haan et al.
American journal of physiology. Gastrointestinal and liver physiology, 305(5), G383-G391 (2013-07-03)
Nutritional stimulation of the cholecystokinin-1 receptor (CCK-1R) and nicotinic acetylcholine receptor (nAChR)-mediated vagal reflex was shown to reduce inflammation and preserve intestinal integrity. Mast cells are important early effectors of the innate immune response; therefore modulation of mucosal mast cells
S Takai et al.
Clinica chimica acta; international journal of clinical chemistry, 265(1), 13-20 (1997-11-14)
A chymostatin-sensitive angiotensin II-generating enzyme was found in human gastroepiploic arteries. The enzyme was purified using heparin affinity and gel filtration columns. The molecular mass of the purified enzyme was 30 kDa, and the optimum pH was between 7.5 and
Su Duy Nguyen et al.
Journal of lipid research, 53(10), 2115-2125 (2012-08-03)
HDL particles may enter atherosclerotic lesions having an acidic intimal fluid. Therefore, we investigated whether acidic pH would affect their structural and functional properties. For this purpose, HDL(2) and HDL(3) subfractions were incubated for various periods of time at different

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