The volume is batch dependent. Here is an example.
L2500-5KU, batch 0000304021 CofA:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/L2500-5KU0000304021.pdf
13.99 mg protein/ml X 877 units/mg Protein = about 12,269 units/ml
For a 5ku pack size: 5000 units / 12,269 units/ml which is about 0.4ml
价格与库存信息目前不能提供
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一般說明
乳酸脱氢酶(LDH)的总分子量为140kDa,由4个亚基组成,称为M亚基(肌肉)和H亚基(心脏)。这些亚基可以以5种组合(M4、M3H1、M2H2、MH3和H4)中的任何一种进行混合。 骨骼肌含有LDH,其主要是M4,含有少量M3H和微量的H2H2。 H和M亚基的分子量非常相似,但氨基酸组成十分不同。兔肌肉LDH在pH5.0的乙酸盐-氯化物中可解离为二聚体物质(MW = ~70kDa),该解离是可逆的。Biochemistry, 13, 3527-3531 (1974). 氧化乙醛酸和乳酸。
等电点:8.4-8.6
最适pH值:7.5.
等电点:8.4-8.6
最适pH值:7.5.
單位定義
在pH7.5,37℃条件下,一个单位每分钟可将1.0μmole的丙酮酸还原为 L-乳酸。
外觀
溶于3.2 M(NH4)2SO4溶液中的结晶悬浮液,pH 6.0
分析報告
蛋白质由缩二脲进行确定。
訊號詞
Danger
危險聲明
危險分類
Resp. Sens. 1
儲存類別代碼
10 - Combustible liquids
水污染物質分類(WGK)
WGK 1
個人防護裝備
Eyeshields, Gloves, type N95 (US)
历史批次信息供参考:
分析证书(COA)
Lot/Batch Number
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For use as a marker in SDS-PAGE; Albumin from chicken egg white, For use as a marker in SDS-PAGE; L-Lactic Dehydrogenase from rabbit muscle, Type XI, lyophilized powder, 600-1,200 units/mg protein
Instructions for working with enzymes supplied as ammonium sulfate suspensions
以硫酸铵悬浮液形式提供的酶的使用指南
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What is the volume of this suspension please?
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