Recombinant Human Eotaxin-3/CCL26 Protein (aa 24-94)

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- 表达系统: E.coli
- 蛋白编码: Q9Y258
别称 |
C-C Motif Chemokine 26;CC Chemokine IMAC;CCL26;Eotaxin-3;MIP-4-Alpha;Macrophage Inflammatory Protein 4-Alpha;SCYA26;Small-Inducible Cytokine A26;TSC-1;Thymic Stroma Chemokine-1
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表达系统 |
E.coli
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序列 |
Thr24-Leu94
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蛋白编码 |
Q9Y258
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种属 |
Human
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计算分子量 |
8.5 kDa
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表观分子量 |
13 kDa
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标签 |
None
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生物活性 |
Not validated for activity
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纯度 |
> 95 % as determined by reducing SDS-PAGE.
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内毒素 |
< 1.0 EU per μg of the protein as determined by the LAL method.
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保存条件 |
Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles.
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运输条件 |
This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at < - 20°C.
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制剂 |
Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 1mM EDTA, 20% Glycerol, pH 9.0.
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复溶方法 |
Not Applicable
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背景 |
Chemokine Ligand 26 protein (CCL26) is a novel small cytokine belonging to the CC chemokine family which is involved in immunoregulatory and inflammatory processes. CCL26 is constitutively expressed in thymus; but only transiently expressed in phytohemagglutinin-stimulated peripheral blood mononuclear cells. It specifically binds and induces chemotaxis in T cells and elicits its effects by interacting with the chemokine receptor CCR4. CCL26; along with Eotaxin-1 and Eotaxin-2; selectively activates the CC chemokine receptor 3 (CCR3). The Eotaxin-3-CCR3 interaction may play an important role in allergic diseases such as atopic dermatitis and bronchial asthma. The full-length cDNA for CCL26 encodes a protein of 94 amino acids with a putative signal peptide of either 23 or 26 amino acid residues. Both the 71 and 68 amino acid residue variants of recombinant CCL26 demonstrate equal potency in inducing chemotaxis of a human CCR3-transfected cell line. Unlike most other CC chemokines; CCL26 maps to human chromosome 7q11.2; within 40 kilobases of the Eotaxin-2 loci. CCL26 and Eotaxin-2 are unique in that they are the only chemokines identified to date that map to chromosome 7.
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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:重组蛋白是否测序验证过?
在售重组蛋白默认不做测序分析/验证。
Q3: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。
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。
Q6: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。
Q7: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。
Q8: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。
Q9:AF蛋白可以提供吗?
在售的重组蛋白都属于Animal component free protein。在售重组蛋白里不含任何直接来源与动物和人的制品:比如血清,血浆,全血,BSA,OVA等。
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