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產(chǎn)品詳情
  • 產(chǎn)品名稱:重組大鼠基質(zhì)細(xì)胞衍生因子-1 alpha / CXCL12 alpha蛋白

  • 產(chǎn)品型號(hào):rRtSDF-1α/CXCL12α
  • 產(chǎn)品廠商:KALANG
  • 產(chǎn)品文檔:
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重組大鼠基質(zhì)細(xì)胞衍生因子-1 alpha / CXCL12 alpha蛋白與其它公司提供的重組蛋白不同,rRtSDF-1α/CXCL12α蛋白產(chǎn)品為采用CFS的無細(xì)胞麥胚蛋白合成系統(tǒng)表達(dá)出來的重組蛋白,可表達(dá)出對(duì)細(xì)胞有毒性、易被蛋白酶降解的蛋白;并獲得具有良好的可溶性,并有翻譯后修飾、從而部分具有功能的蛋白.同時(shí)獨(dú)有的全自動(dòng)蛋白純化技術(shù)則簡(jiǎn)便高效,將蛋白純化過程中對(duì)蛋白的損傷降低到*小程度.重組大鼠基質(zhì)細(xì)胞衍生因子-1 alpha / CXCL12 alpha蛋白(全長(zhǎng)序列)產(chǎn)品可用于Western Blot驗(yàn)證、抗體制備、蛋白檢測(cè)、ELISA等試驗(yàn)中.
詳情介紹:

重組大鼠基質(zhì)細(xì)胞衍生因子-1 alpha / CXCL12 alpha蛋白

Species Rat
Accession Q9QZD1
GeneID 24772
Source Escherichia coli.
Molecular Weight 重組大鼠基質(zhì)細(xì)胞衍生因子-1 alpha / CXCL12 alpha蛋白Approximately 7.9 kDa, a single non-glycosylated polypeptide chain containing 68 amino acids.
Quantity 2μg/10μg/1000μg
AA Sequence KPVSLSYRCP CRFFESHVAR ANVKHLKILN TPNCALQIVA RLKSNNRQVC IDPKLKWIQE YLDKALNK
Purity > 97 % by SDS-PAGE and HPLC analyses.
Biological Activity 重組大鼠基質(zhì)細(xì)胞衍生因子-1 alpha / CXCL12 alpha蛋白Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human peripheral blood monocytes is in a concentration range of 50-100 ng/ml.
Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation Lyophilized from a 0.2 μm filtered concentrated solution in 20 mM PB, pH 7.4, 150 mM NaCl.
Endotoxin Less than 1 EU/μg of rRtSDF-1α/CXCL12α as determined by LAL method.
Reconstitution 重組大鼠基質(zhì)細(xì)胞衍生因子-1 alpha / CXCL12 alpha蛋白We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.
重組大鼠基質(zhì)細(xì)胞衍生因子-1 alpha / CXCL12 alpha蛋白
Reference 1. Shirozu M, Nakano T, Inazawa J, et al. 1995. Genomics. 28:495-500.
2. De La Luz Sierra M, Yang F, Narazaki M, et al. 2004. Blood. 103:2452-9.
3. Charnaux N, Brule S, Hamon M, et al. 2005. FEBS J. 272:1937-51.
4. Bleul CC, Fuhlbrigge RC, Casasnovas JM, et al. 1996. J Exp Med. 184:1101-9.
5. Ara T, Nakamura Y, Egawa T, et al. 2003. Proc Natl Acad Sci U S A. 100:5319-23.
6. Askari AT, Unzek S, Popovic ZB, et al. 2003. Lancet. 362:697-703.
7. Ma Q, Jones D, Borghesani PR, et al. 1998. Proc Natl Acad Sci U S A. 95:9448-53.
Background CXCL12 also known as SDF-1 is belonging to the CXC chemokine family. It is encoded by the CXCL12 gene. Rat CXCL12 is expressed as two isoforms that differ only in the C-terminal tail. And both SDF-1 isoforms undergo proteolytic processing of the first two N-terminal amino acids. Contrast to SDF-1β, SDF-1α is shorter by four amino acids at the C-terminal tail. On the cell surface, the receptor for this chemokine is CXCR4 and syndecan4. CXCL12 is strongly chemotactic for T-lymphocytes, monocytes, but not neutrophils. SDF-1 is highly conserved between species, rat CXCL12α shares approximately 96% amino acid sequence identity with human CXCL12α.

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