Recombinant Human CCL18/PARC Protein(Trx Tag)

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- 表达系统: E.coli
- 蛋白编码: P55774
别称 |
CKb;TSC;DCCK;DC-CK;Eotaxin;AMAC-1;CCL26;CKb7;DC-CK1;Eotaxin-3;IMAC;MIP-4;MIP-4a;SCYA26;TSC-1;AMAC1;MIP4;PARC;SCYA18;CCL18;AMAC-1;CKb7;DCCK1;DC-CK1;MIP-4;Alternative macrophage activation associated CC chemokine 1;Alternative macrophage activation-associated CC chemokine 1;CC chemokine PARC;C-C Motif Chemokine 18;CCL18(4-69);Dendritic cell chemokine 1;Macrophage inflammatory protein 4;Pulmonary and activation regulated chemokine;Pulmonary and activation-regulated chemokine;Small inducible cytokine A18;Small-inducible cytokine A18
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表达系统 |
E.coli
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序列 |
Ala21-Ala89
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蛋白编码 |
P55774
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种属 |
Human
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计算分子量 |
27.4 kDa
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表观分子量 |
30 kDa
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标签 |
N-Trx
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生物活性 |
Not validated for activity
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纯度 |
> 90% as determined by reducing SDS-PAGE.
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内毒素 |
< 10 EU/mg of the protein as determined by the LAL method
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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.
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运输条件 |
This product is provided as lyophilized powder which is shipped with ice packs.
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制剂 |
Lyophilized from a 0.2 μm filtered solution in PBS with 5% Trehalose and 5% Mannitol.
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复溶方法 |
It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis.
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背景 |
CCL18/PARC is a chemotactic cytokine involved in the pathogenesis and progression of various disorders, including cancer. Proof showed high levels of CCL18/PARC in the serum of epithelial ovarian carcinoma patients sμggesting its potential as a circulating biomarker. CCL18/PARC chemokine has an important role in chemokine-mediated tumor metastasis, and may serve as a potential predictor for poor survival outcomes for ovarian cancer. (CCL18/PARC) is predominantly secreted by M2-tumor associated macrophages (TAMs) and promotes malignant behaviors of various human cancer types. CCL18/PARC has a correlation with cardiac function in patients with AAMI and it might be considered as an indicator of poor LVEF in patients with AAMI. Circulating and WAT-secreted CCL18/PARC correlates with insulin resistance and metabolic risk score. Because CCL18/PARC is macrophage-specific and associates with adipose immune gene expression, it may constitute a marker of WAT inflammation. Macrophages are thoμght to be the main source of CCL18/PARC, and the effect of pirfenidone, an anti-fibrotic agent for idiopathic pulmonary fibrosis, on the expression of CCL18/PARC in macrophages warrants investigation.
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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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