商品编号


LS004240



品牌


Worthington



公司


Worthington Biochemical Corporation



公司分类


Products



Size

5 ml

商品信息
Proteinase K, SolutionA concentrated, ready to use liquid formulation. Proteinase K prepared at 20mg/ml in 10mM Tris-HCl, 1mM calcium acetate, pH 7.5 containing 50% glycerol. DNase- and RNase- free.Store at -20°C.REQUIRES SPECIAL SHIPPING: ICE PACK≥400 u/ml
Source:
Tritirachium album limber
I.U.B.: 3.4.21.64
Proteinase K (PROK) is a serine protease with broad specificity towards aliphatic, aromatic and other hydrophobic amino acids. PROK has a molecular weight of 27,000 daltons and is Ca
2+
dependent. It is not inactivated by metal ion chelating agents such as EDTA, sulfhydryl reagents, PCMB, TLCK, or TPCK. It also retains activity in 0.5% SDS. It can be inhibited by PMSF or DFP.
St
ABI
lity/Storage:
The lyophilized powder is stable for one year at 2-8°C. Solutions in 50mM Tris-HCl, pH 8.0 with 1mM CaCl
2
are stable for months at 2-8°C. Store at 2-8°C.
Unit Definition
: One Unit releases one micromole of Folin positive amino acids, measured as tyrosine, at 37°C, pH 7.5, using urea denatured hemoglobin as the substrate.
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