Kallikrein 5/KLK5 重组蛋白, Human (His)

Kallikrein 5/KLK5 Protein, Human, Recombinant (His)

产品编号 TMPJ-01405

Kallikrein 5/KLK5 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with C-6xHis tag. The predicted molecular weight is 40 KDa and the accession number is Q9Y337.

Kallikrein 5/KLK5 Protein, Human, Recombinant (His)

产品编号 TMPJ-01405

Kallikrein 5/KLK5 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with C-6xHis tag. The predicted molecular weight is 40 KDa and the accession number is Q9Y337.

规格	价格	库存
10 μg	¥ 1,170	现货
50 μg	¥ 3,470	5日内发货
500 μg	¥ 12,100	5日内发货
1 mg	¥ 17,400	5日内发货

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常见问题解答

问期货产品没有纯度啊？这个纯度在哪里看

答期货产品的话，是没有纯度信息，也没有质检信息的。有了现货之后我们会进行质检，测出试剂的纯度和结构等相关信息，并且展示在官网的活性描述上方。

问收到产品发现冰盒都化了，怎么办？

答一般化合物粉末对温度不敏感，加冰盒是为了防止极端气温，如果冰盒融化不影响产品质量。

问如何设置母液浓度？

答母液浓度需低于官网给出的溶解度，在这个范围内，根据工作液浓度设置母液浓度，细胞实验中，建议母液浓度设定在工作液浓度的 1000 倍以上。

问是否能直接用缓冲液对抑制剂 DMSO 母液做梯度稀释？

答大部分情况下，都是可以溶解的。但有时，有机试剂直接加入水相介质时会析出。建议将抑制剂先以DMSO做梯度稀释，再将经过稀释的抑制剂加入缓冲液或细胞培养基。有些抑制剂甚至只有在其工作浓度下才能溶于水相。比如细胞实验中希望终浓度为 1 μM 的话，可以把 10 mM 的 DMSO 母液用 DMSO 稀释到 1 mM，再吸 2 μL 加入到 2 mL 的生理盐水/PBS/细胞培液，终浓度即为 1 μM。为避免药物析出，稀释前，可将母液和培养基 37℃ 预热，避免温度低造成严重析出。若稀释过程中出现化合物析出的情况，建议您采用超声加热的方法使其复溶。

问超声一般需要多久？

答超声时长和溶解的量和浓度都有关，一般建议半个小时左右，如果浓度接近最大溶解度，或者需溶解的粉末较多，建议延长超声时间，并辅以加热。

产品信息

生物活性	Measured by its ability to cleave the fluorogenic peptide substrate Boc-VPR-AMC. The specific activity is 622 pmol/min/µg, as measured under the described conditions. (Regularly tested)
产品描述	Kallikrein 5/KLK5 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with C-6xHis tag. The predicted molecular weight is 40 KDa and the accession number is Q9Y337.
种属	Human
表达系统	HEK293 Cells
标签	C-6xHis
蛋白编号	Q9Y337
别名	Stratum Corneum Tryptic Enzyme,SCTE,KLK-L2,KLK5,Kallikrein-Like Protein 2,Kallikrein-5
氨基酸序列	Val23-Ser293
蛋白构建	Val23-Ser293
蛋白纯度	Greater than 95% as determined by reducing SDS-PAGE. Greater than 95% as determined by SEC-HPLC.
分子量	40 KDa (reducing condition)
内毒素	< 0.1 ng/µg (1 EU/µg) as determined by LAL test.
缓冲液	Supplied as a 0.2 μm filtered solution of 20 mM MES, 150 mM NaCl, 10% Glycerol, pH 5.5.
存储	Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
运输方式	In general, Lyophilized powders are shipping with blue ice. Solutions are shipping with dry ice.
研究背景	Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many Kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This gene is one of the fifteen Kallikrein subfamily members located in a cluster on chromosome 19. Its encoded protein is secreted and may play a role in suppression of tumorigenesis in breast and prostate cancers. Alternate splicing of this gene results in multiple transcript variants encoding the same protein.

Kallikrein 5/KLK5 Protein, Human, Recombinant (His)

Kallikrein 5/KLK5 Protein, Human, Recombinant (His)

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