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Merck

P5318

Sigma-Aldrich

胃酶抑素 A

powder, ≥90% (HPLC)

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About This Item

经验公式(希尔记法):
C34H63N5O9
CAS号:
分子量:
685.89
Beilstein:
2201362
EC號碼:
MDL號碼:
分類程式碼代碼:
12352202
PubChem物質ID:
NACRES:
NA.77

product name

胃酶抑素 A, microbial, ≥90% (HPLC)

生物源

microbial

品質等級

化驗

≥90% (HPLC)

形狀

powder

mp

233 °C (dec.) (lit.)

溶解度

ethanol: 1-2 mg/mL (with heat up to 60 °C)

儲存溫度

2-8°C

SMILES 字串

CC(C)C[C@H](NC(=O)[C@H](C)NC(=O)C[C@H](O)[C@H](CC(C)C)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CC(C)C)C(C)C)C(C)C)[C@@H](O)CC(O)=O

InChI

1S/C34H63N5O9/c1-17(2)12-23(37-33(47)31(21(9)10)39-34(48)30(20(7)8)38-27(42)14-19(5)6)25(40)15-28(43)35-22(11)32(46)36-24(13-18(3)4)26(41)16-29(44)45/h17-26,30-31,40-41H,12-16H2,1-11H3,(H,35,43)(H,36,46)(H,37,47)(H,38,42)(H,39,48)(H,44,45)/t22-,23-,24-,25-,26-,30-,31-/m0/s1

InChI 密鑰

FAXGPCHRFPCXOO-LXTPJMTPSA-N

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一般說明

胃酶抑素A是一种天然存在的趋化肽,可用作天冬氨酸蛋白酶抑制剂,其最初是从各种放线菌物种培养滤液中分离得到的,最初简称为“胃酶抑素”。 后修改为“胃酶抑素 A”,以将最初的胃酶抑素与后来的衍生物区分开。 胃酶抑素 A包含不常见氨基酸4-氨基-羟基-6-甲基庚酸(AHMHA),该物质也称为他汀。 胃酶抑素A的氨基酸序列是N-异戊酰基-L-戊基-L-戊基-AHMHA-L-丙氨酰基-AHMHA。

應用

可与E64-d和Leupeptin A合用,用于抑制自噬体内自噬底物的降解。 对于该应用,工作浓度通常在1-10 μM之间。

生化/生理作用

胃酶抑素 A 是酸性蛋白酶(天冬氨酰基肽酶)的抑制剂。它可与蛋白酶如胃蛋白酶、肾素、组织蛋白酶 D、牛凝乳酶和蛋白酶 B(黑曲霉)形成 1:1 的复合物。该抑制剂具有高度的选择性,不会抑制硫醇蛋白酶、中性蛋白酶或丝氨酸蛋白酶。可溶性 γ-分泌酶和逆转录病毒蛋白酶也可被胃酶抑素 A 抑制。它已用于鉴定多种来源的蛋白酶。

準備報告

胃蛋白酶抑制剂能够以1 mg/ml溶于含10%(v/v)乙酸的甲醇溶液(甲醇:乙酸比例9:1)中。使用甲醇或DMSO溶解该肽时,乙酸可能是必需的。它能够以1-2 mg/ml溶解在乙醇中,但可能需要加热才能完全溶解。胃蛋白酶抑制剂溶液可以加热至最高60℃而不会导致肽分解。
1 mg/ml储备溶液可在4℃下稳定保存至少一周。溶剂为甲醇或DMSO的1 mM溶液可在-20℃下稳定保存数月。如果溶液变成深黄色,则表示试剂水解。
工作浓度为1μM的溶液可在室温下稳定保存至少一天。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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