重组人SDF1 beta蛋白(ab9800)
Key features and details
- Expression system: Escherichia coli
- Purity: > 98% SDS-PAGE
- Active: Yes
- Suitable for: Functional Studies, SDS-PAGE
描述
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产品名称
重组人SDF1 beta蛋白
参阅全部 SDF1 beta 蛋白酶 -
生物活性
Determined by its ability to chemoattract activated Human T-Lymphocytes using a concentration range of 10.0-50.0 ng/mL.
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纯度
> 98 % SDS-PAGE.
Sterile filtered Greater than 98% pure by HPLC analyses. Endotoxin level is less than 0.1 g/ml (1EU/g). -
表达系统
Escherichia coli -
Accession
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蛋白长度
Full length protein -
无动物成分
No -
性质
Recombinant -
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种属
Human -
序列
KPVSLSYRCP CRFFESHVAR ANVKHLKILN TPNCALQIVA RLKNNNRQVC IDPKLKWIQE YLEKALNKRF KM -
预测分子量
11 kDa -
氨基酸
22 to 93 -
额外的序列信息
The mature SDF-1β protein, produced by an N-terminal truncation of two additional amino acids, after removal of the signal sequence, contains 72 amino acid residues.
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技术指标
Our Abpromise guarantee covers the use of ab9800 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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应用
Functional Studies
SDS-PAGE
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形式
Lyophilized -
补充说明
This product produced a greater than 20-fold increased in chemotaxis at 80ng/ml compared to the medium control in an assay using human peripheral T cells activated with PHA and IL-2. -
Concentration information loading...
制备和贮存
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稳定性和存储
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
This product is an active protein and may elicit a biological response in vivo, handle with caution.
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复溶Reconstitute with 100 ul of deionised water (or equivalent).
常规信息
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别名
- C-X-C motif chemokine 12
- cxcl12
- hIRH
see all -
功能
Chemoattractant active on T-lymphocytes, monocytes, but not neutrophils. Activates the C-X-C chemokine receptor CXCR4 to induce a rapid and transient rise in the level of intracellular calcium ions and chemotaxis. Also binds to another C-X-C chemokine receptor CXCR7, which activates the beta-arrestin pathway and acts as a scavenger receptor for SDF-1. SDF-1-beta(3-72) and SDF-1-alpha(3-67) show a reduced chemotactic activity. Binding to cell surface proteoglycans seems to inhibit formation of SDF-1-alpha(3-67) and thus to preserve activity on local sites. Acts as a positive regulator of monocyte migration and a negative regulator of monocyte adhesion via the LYN kinase. Stimulates migration of monocytes and T-lymphocytes through its receptors, CXCR4 and CXCR7, and decreases monocyte adherence to surfaces coated with ICAM-1, a ligand for beta-2 integrins. SDF1A/CXCR4 signaling axis inhibits beta-2 integrin LFA-1 mediated adhesion of monocytes to ICAM-1 through LYN kinase. Inhibits CXCR4-mediated infection by T-cell line-adapted HIV-1. Plays a protective role after myocardial infarction. Induces down-regulation and internalization of CXCR7 expressed in various cells. Has several critical functions during embryonic development; required for B-cell lymphopoiesis, myelopoiesis in bone marrow and heart ventricular septum formation. -
组织特异性
Isoform Alpha and isoform Beta are ubiquitously expressed, with highest levels detected in liver, pancreas and spleen. Isoform Gamma is mainly expressed in heart, with weak expression detected in several other tissues. Isoform Delta, isoform Epsilon and isoform Theta have highest expression levels in pancreas, with lower levels detected in heart, kidney, liver and spleen. -
序列相似性
Belongs to the intercrine alpha (chemokine CxC) family. -
发展阶段
Isoform Alpha is ubiquitously expressed in fetal tissues. Isoform Beta and isoform Delta have more limited expression patterns, with highest levels detected in fetal spleen and fetal liver, respectively. Isoform Gamma and isoform Theta are weakly detected in fetal kidney. -
翻译后修饰
Processed forms SDF-1-beta(3-72) and SDF-1-alpha(3-67) are produced after secretion by proteolytic cleavage of isoforms Beta and Alpha, respectively. The N-terminal processing is probably achieved by DPP4. Isoform Alpha is first cleaved at the C-terminus to yield a SDF-1-alpha(1-67) intermediate before being processed at the N-terminus. The C-terminal processing of isoform Alpha is reduced by binding to heparin and, probably, cell surface proteoglycans. -
细胞定位
Secreted. - Information by UniProt
实验方案
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
数据表及文件
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Datasheet download
文献 (0)
ab9800 尚未被引用在任何文献中。