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蛋白酶K
产品名称：蛋白酶K

产品货号：539480-100mg
规格包装：100mg
品牌产地：Merck
产品价格：320元

蛋白酶K

Serine protease that exhibits strong proteolytic activity on a wide variety of denatured and native proteins of high molecular weight. Because of its rapid proteolytic inactivation of endogenous nucleases, it can be used for isolation of mRNA and high molecular weight DNA. Preferentially cleaves bonds next to the carbonyl group of N-substituted hydrophobic, aliphatic, and aromatic amino acids. Inhibited by DFP, Hg2+, and PMSF. Not inactivated by metal chelators, sulfhydryl reagents, TLCK, or TPCK.
 

产品信息
Form White lyophilized solid
Formulation Lyophilized from calcium acetate
Specific activity ≥40 mAnsonU/mg protein
Unit definition One unit is defined as the amount of enzyme that will liberate 1.0 µmol tyrosine from casein per min at 37°C, pH 7.5.
Activity ≥30 mAnsonU/mg dry weight
Contaminants DNase: no detectable nicking activity with pBR322, incubation for 6 h at 37°C; RNase: no ribonuclease activity with MS2 RNA detected after incubation for 6 h at 37°C
EC number 3.4.21.14
CAS number 39450-01-6
商店和运输信息
Storage +2°C to +8°C
Ship Ambient Temperature Only
Irritant
安全标示
S Phrase S: 22-24-26-36/37

Do not breathe dust.
Avoid contact with skin.
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Wear suitable protective clothing and gloves.
R Phrase R: 36/37/38-42

Irritating to eyes, respiratory system and skin.
May cause sensitization by inhalation