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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 Protein Disulfide Isomerase A5 (PDIA5)
- 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. RPD775Hu01
Source Prokaryotic expression
Host E.coli
Purity > 95%
UOM 50ug
Predicted Molecular Mass 18.8kDa
Applications SDS-PAGE; WB; ELISA; IP.
Endotoxin Level <1.0EU per 1µg (determined by the LAL method)
Residues Trp378~Glu506 with two N-terminal Tags, His-tag and T7-tag
蛋白二硫化物异构酶A5(PDIA5)重组蛋白Formulation Supplied as lyophilized form in PBS, pH7.4, containing 5% trehalose, 0.01% sarcosyl.
SEQUENCES
The target protein is fused with two N-terminal Tags, His-tag and T7-tag, its sequence is listed below.
WMQ NPEAPPPPEP TWEEQQTSVL HLVGDNFRET LKKKKHTLVM FYAPWCPHCK KVIPHFTATA DAFKDDRKIA CAAVDCVKDK NQDLCQQEAV KGYPTFHYYH YGKFAEKYDS DRTELGFTNY IRALRE
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 蛋白二硫化物异构酶A5(PDIA5)重组蛋白to make location and size approximation of proteins of interest quick and easy.
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文献和实验时间、在较高的菌密度下诱导都有利于包涵体的形成;在破菌和变性溶解时加入还原剂能够打开错配的二硫键;在复性液中加入二硫键异构酶、脯氨酸异构酶、分子伴侣和蛋白的辅助因子可以帮助重组蛋白折叠;精氨酸和高分子量PEG能减轻蛋白分子的聚集;尝试多种物理手段,如透析、快速稀释和柱上复性等,有时对复性有奇效。包涵体的表达相对简单,但其复性过程仍是依赖经验的,没有通用的方法可以套用。
摘要 基因重组蛋白在大肠杆菌中表达时,由于表达量高,往往形成无生物活性的包涵体。包涵体必须经过变性和复性的过程才能获得有活性的重组蛋白。如何提高基因重组蛋白质的复性率,是生物工程技术的一个研究热点。对近年来的重组蛋白质的复性方法做一评述,为研究蛋白质折叠以及复性技术的进一步应用提供依据。 关键词 重组蛋白 包涵体 复性 二硫键 到目前为止,人们表达的重组蛋白质已有4000多种,其中用E.coli表达的蛋白质要占90%以上,尽管基因重组技术为大规模生产目标蛋白质提供
从Physiological Reviews看ADC设计全链条,华美生物高质量试剂如何助力ADC研发全流程
生物旗下现拥有两大子品牌,CUSABIO与科赛格(CUSAg)。其中,CUSABIO主要经营科研试剂产品,包括重组蛋白、抗体、基因、试剂盒等产品。目前,CUSABIO已开发15000+重组蛋白,涵盖了从人类到其他常见物种的疾病相关的药物靶点抗原和生物标志物。此外,为鼎力相助抗体药研发,针对多次跨膜蛋白,华美生物还搭建了病毒样颗粒 (VLPs)、去垢剂和Nanodisc三大技术平台,较大程度上解决了全长跨膜蛋白制备难的问题。
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