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Recombinant Human MMP-9/CLG4B protein (His tag)

Price: ¥826 ¥476

Size:
100μg 20μg
  • 表达系统: E.coli
  • 蛋白编码: P14780
别称
Matrix metalloproteinase-9;92 kDa gelatinase;92 kDa type IV collagenase;Gelatinase B;MMP9;CLG4B;GELB;MANDP2
表达系统
E.coli
序列
Arg 162-Arg 440
蛋白编码
P14780
种属
Human
计算分子量
30.6 kDa
表观分子量
35 kDa
标签
N-His
纯度
> 95 % as determined by reducing SDS-PAGE.
内毒素
Please contact us for more information.
保存条件
Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
运输条件
This product is provided as lyophilized powder which is shipped with ice packs.
制剂
Lyophilized from sterile PBS, pH 7.4.
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.
Please refer to the specific buffer information in the printed manual.
复溶方法
Please refer to the printed manual for detailed information.
背景
Matrix metalloproteinases (MMPs) are neutral proteinases that are involved in the breakdown and remodeling of the extracellular matrix (ECM) under a variety of physiological and pathological conditions, such as morphogenesis, differentiation, angiogenesis and tissue remodeling, as well as pathological processes including inflammation, arthritis, cardiovascular diseases, pulmonary diseases and tumor invasion. MMP9, also known as 92-kDa gelatinase B/type IV collagenase, is secreted from neutrophils, macrophages, and a number of transformed cells, and is the most complex family member in terms of domain structure and regulation of its activity. It plays an important role in tissue remodelling in normal and pathological inflammatory processes. MMP-9 is a major secretion product of macrophages and a component of cytoplasmic granules of neutrophils, and is particularly important in the pathogenesis of inflammatory, infectious, and neoplastic diseases in many organs including the lung. This enzyme is also secreted by lymphocytes and stromal cells upon stimulation by inflammatory cytokines, or upon delivery of bi-directional activation signals following integrin-mediated cell-cell or cell-extracellular matrix (ECM) contacts. The dramatic overexpression of MMP-9 in cancer and various inflammatory conditions clearly points to the molecular mechanisms controlling its expression as a potential target for eventual rational therapeutic intervention.

Q1:重组蛋白有活性吗?可以做活性检测吗?

活性说明的见说明书bio-activity部分;如果说明书显示没有生物活性或则显示生物活性检测中,则说明这个蛋白没有生物活性数据,需要客户自己检测。

Q2:蛋白的运输条件是什么?

我们的蛋白有液体和冻干粉2种形式,一般来说冻干粉可以用冰袋、蓝冰、干冰运输;液体可以用蓝冰或干冰运输。

Q3:蛋白Buffer里是否含有denaturants(变性剂)?

我们在售重组蛋白一般不含变性剂,具体见说明书的formulation信息。常见变性剂有:尿素和盐酸胍。

Q4:蛋白是通过什么方式纯化的?

一般通过纯化标签进行亲和纯化,常规有镍柱/His Tag、protein AG/Fc tag、标签抗体凝胶等。

Q5:蛋白发货形式可以是冻干粉吗?可以发液体吗?

默认按照说明书标注的形式发货;如果有特殊需求,需要根据蛋白情况确定。原则上,冻干粉蛋白可以发液体形式,液体蛋白不能发冻干粉形式。

Q6:无标签蛋白纯化方式?

蛋白的纯化方式一般通过标签进行亲和纯化,无标签的蛋白是在纯化后进行了标签切除。

Q7:蛋白可以用于细胞培养/注射小鼠吗?

内毒素含量小于0.1 ng/μg (1 EU/μg)的蛋白都可以用于细胞培养/注射小鼠。



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