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product name
胰蛋白酶抑制剂 来源于大豆, Isoelectric focusing marker, pI 4.6
生物源
Glycine max (soybean)
品質等級
形狀
powder
分子量
20,100 Da
技術
isoelectric focusing (IEF): suitable
pI
4.6
溶解度
balanced salt solution: 1 mg/mL
concentrate: >10 mg/mL, hazy, amber-yellow
phosphate buffer: 10 mg/mL
water: 10 mg/mL
serum-free medium: soluble
運輸包裝
ambient
儲存溫度
−20°C
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生化/生理作用
该抑制剂能够在较小程度上抑制胰蛋白酶、胰凝乳蛋白酶和纤溶酶。它还能抑制蛋白酶血浆激肽释放酶和凝血因子X,机制与抑制胰蛋白酶类似。胰蛋白酶抑制剂不会抑制金属蛋白酶、基于组织的激肽释放酶、酸性蛋白酶或硫代蛋白酶。该抑制剂通过与蛋白酶活性位点按1:1化学计量形成复合物,然后在抑制剂上切割单个精氨酸-异亮氨酸键。抑制作用是可逆的且具有pH依赖性。
成分
The soybean trypsin inhibitor is a monomeric protein containing 181 amino acid residues in a single polypeptide chain crosslinked by two disulfide bridges.
單位定義
一个胰蛋白酶单位是指在25°C、pH 7.6条件下,以N-α-苯甲酰基-L-精氨酸乙酯(BAEE)为底物,每分钟产生0.001的 A253所需的酶量。
One trypsin unit = A253 of 0.001 per minute with N-alpha-benzoyl-L-arginine ethyl ester (BAEE) as substrate at pH 7.6 at 25 °C.
準備報告
胰蛋白酶抑制剂能够以10 mg/mL溶于水和磷酸盐缓冲液。它能够以1 mg/mL溶于平衡盐溶液和无血清培养基中。浓度大于10 mg/mL的浓缩液可能浑浊,呈黄色至琥珀色。使用胰蛋白酶消化细胞后,重悬于胰蛋白酶抑制剂溶液中,使得用于解离的胰蛋白酶溶液浓度达到1 mg/mL。然后将细胞悬浮液以1000rpm离心,得到细胞沉淀。
在2-8℃下短期储存时,溶液可保持活性。溶液分装后可在-20℃冷冻并保持稳定。
在2-8℃下短期储存时,溶液可保持活性。溶液分装后可在-20℃冷冻并保持稳定。
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实验方案
天然胰蛋白酶抑制剂也称为丝氨酸蛋白酶抑制剂(serpins),是最大和最多样化的蛋白酶抑制剂家族。Serpins通过抑制体内丝氨酸蛋白酶来控制蛋白质的活化和分解代谢。
Natural trypsin inhibitors (serpins) regulate protein activation and catabolism by inhibiting serine proteases in vivo.
Chromatograms
application for HPLC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.
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