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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
-20℃
- 保质期:
12个月
- 英文名:
Recombinant Early Growth Response Protein 1 (EGR1)
- 库存:
100
- 供应商:
上海沪震
FOR IN VITRO AND RESEARCH USE ONLY, NOT FOR USE IN CLINICAL DIAGNOSTIC PROCEDURES!
Organism species Homo sapiens (Human)
Product No. RPA416Hu01
Source Prokaryotic expression
Host E.coli
Purity > 95%
UOM 50ug
Predicted Molecular Mass 21.4kDa
Predicted isoelectric point 10.5
Applications SDS-PAGE; WB; ELISA; IP.
Endotoxin Level <1.0EU per 1µg (determined by the LAL method)
Subcellular Location Nucleus
Residues Gln282~Ser433 (Accession # P18146) with two N-terminal Tags, His-tag and T7-tag
Formulation Supplied as lyophilized form in 20mM Tris, 500mM NaCl, pH8.0, containing 1mM EDTA, 1mM DTT, 0.01% sarcosyl, 5% trehalose, and preservative.
SEQUENCES
The target protein is fused with two N-terminal Tags, His-tag and T7-tag, its 早期生长应答因子1(EGR1)重组蛋白sequence is listed below.
MGSSHHHHHH SSGLVPRGSH MASMTGGQQM GRGSEF- QQPSLTPLS TIKAFATQSG SQDLKALNTS YQSQLIKPSR MRKYPNRPSK TPPHERPYAC PVESCDRRFS RSDELTRHIR IHTGQKPFQC RICMRNFSRS DHLTTHIRTH TGEKPFACDI CGRKFARSDE RKRHTKIHLR QKDKKADKSV VAS
USAGE
Reconstitute in sterile PBS, pH7.2-pH7.4.
STORAGE AND STABILITY
Storage: Avoid repeated freeze/thaw cycles. Store at 2-8oC for one month. Aliquot and store at -80oC for 12 months.
Stability Test: The thermal stability is described by the loss rate of the target protein. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37oC for 48h, and no obvious degradation and precipitation were observed. (Referring from China Biological Products Standard, which was calculated by the Arrhenius equation.) The loss of this protein is less than 5% within the expiration date under appropriate storage condition.
About the MARKER (complimentary)
Effective Size Range: 10kDa to 70kDa.
Protein bands: 10kDa, 14kDa, 18kDa, 22kDa, 26kDa, 33kDa, 44kDa and 70kDa.
Double intensity bands: The 26kDa, 18kDa, 10kDa bands are at double intensity to make location and size approximation of proteins of interest quick and easy.
早期生长应答因子1(EGR1)重组蛋白Ready-to-use: No need to heat, dilute or add reducing agents before use.
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文献和实验牢记N端法则:当N端第二个残基是Leu、Arg、Lys、Phe、Tyr和Trp时,重组蛋白半衰期只有2分钟,而小侧链的氨基酸残基,如Ala,则可以提高蛋白稳定性。因此在设计载体时,要特别注意第二个密码子,避免上述残基的出现。处理高毒性蛋白:毒性极高的重组蛋白,其本底表达就会杀死原核宿主,质粒容易丢失,使其在大肠杆菌中很难得到高表达。采用可表达T7溶菌酶的宿主。T7溶菌酶是T7RNA聚合酶的抑制剂,采用含有T7溶菌酶质粒的宿主,如pLysS,可以降低重组蛋白在大肠杆菌快速生长期的本底
蛋白、含二硫键蛋白在体外成功复性。 包涵体形成的原因 重组蛋白在宿主系统中高水平表达时,无论是原核表达体系或真核表达体系甚至高等真核表达体系,都会形成包涵体[2]。主要因为在重组蛋白的表达过程中,缺乏某些蛋白质折叠过程中需要的酶和辅助因子,或环境不适,无法形成正确的次级键等原因形成的[3]。 1、 表达量过高,研究发现在低表达时很少形成包涵体,表达量越高越容易形成包涵体。原因可能是合成速度太快,以至于没有足够的时间进行折叠,二硫键不能正确配对,过多的蛋白间的非特异
三句话读懂一篇 CNS:柑橘纤维中的这种物质,可减少脂肪储存;无需药物的新止痛方法来了!
cell activation and liver fibrosis in schistosomiasis through JNK-cJUN/Egr1 downregulation。 该研究表明 RIP3 缺乏可减轻日本血吸虫诱导的肝纤维化,RIP3-JNK-cJUN/Egr1 轴正反馈调节炎症因子和 ROS 的产生,从而激活 HSC,促进血吸虫肝纤维化,发现 RIP3 及其信号通路可能是致病性肝纤维化的新药物靶点! 图 7:来源 STTT 8. Cell:膳食纤维可明显助力改善代谢状况 膳食
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