Soybean trypsin inhibitor is a mixture of the three types. We have not characterized our trypsin inhibitor products in terms of how much of each of the three types may be present. All three have a molecular weight of between 20,000 and 20,200 daltons, so one might use 20,100 daltons as an average.The three types vary in the amino acids at a few positions. The detailed summary of the three types (or variants) was published in the following linked reference: J. Biochem. (Japan), 98, 435-448 (1985).Note that the authors use Tia, Tib and Tic to indicate the three variants.
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25 MG
$111.00
100 MG
$300.00
250 MG
$483.00
500 MG
$1,040.00
1 G
$1,470.00
5 G
$5,110.00
$111.00
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25 MG
$111.00
100 MG
$300.00
250 MG
$483.00
500 MG
$1,040.00
1 G
$1,470.00
5 G
$5,110.00
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$111.00
请联系客服了解存货情况
新价格，新优惠！
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产品名称
胰蛋白酶抑制剂 来源于大豆, lyophilized powder
生物源
Glycine max (soybean)
品質等級
形狀
lyophilized powder
分子量
20.1 kDa
溶解度
H2O: >10 mg/mL
phosphate buffer: >10 mg/mL (hazy above 10 mg/ml)
soluble
應用
diagnostic assay manufacturing
儲存溫度
2-8°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
大豆胰蛋白酶抑制剂是一种单体蛋白，在两个二硫键交联的单个多肽链中含有181个氨基酸残基。
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。
在25℃、pH 7.6条件下，反应体积为3.2 ml、光程为1 cm时，以BAEE为底物，一单位胰蛋白酶每分钟可产生0.001的ΔA253 。
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。
分析報告
1 mg胰蛋白酶抑制剂可抑制1.0-3.0 mg活性为~10,000单位BAEE/mg蛋白的胰蛋白酶。
訊號詞
Danger
危險聲明
危險分類
Resp. Sens. 1 - Skin Sens. 1
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
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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分析证书(COA)
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实验方案
This technical article described the Enzymatic Assay of Trypsin Inhibitor.
Chromatograms
application for HPLC-
What is the molecular weight and amino acid sequence of trypsin inhibitor from Glycine max (soybean)?
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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