亚洲精品国产v片在线观看,欧美v日韩v国产综合,亚洲av片一区二区三区不卡不,日韩欧美中文在线播放

行業(yè)產(chǎn)品

  • 行業(yè)產(chǎn)品

廈門慧嘉生物科技有限公司


當(dāng)前位置：廈門慧嘉生物科技有限公司>>細(xì)胞因子>>Prospec >>*-21/IL 21 Human

*-21/IL 21 Human

返回列表頁
參  考  價(jià)面議
具體成交價(jià)以合同協(xié)議為準(zhǔn)

產(chǎn)品型號(hào)

品       牌

廠商性質(zhì)代理商

所  在  地廈門市

聯(lián)系方式：陳先生查看聯(lián)系方式

更新時(shí)間：2016-07-13 15:18:56瀏覽次數(shù)：352次

聯(lián)系我時(shí)，請(qǐng)告知來自 環(huán)保在線

經(jīng)營(yíng)模式：代理商

商鋪產(chǎn)品：9325條

所在地區(qū)：福建廈門市

聯(lián)系人：陳先生

產(chǎn)品簡(jiǎn)介

*-21/IL 21 Human產(chǎn)品編號(hào)：CYT-408
產(chǎn)品規(guī)格：2μg/10μg/1mg

詳細(xì)介紹

慧嘉生物您實(shí)驗(yàn)身邊的好伙伴
為客戶提供“zui高品質(zhì)的產(chǎn)品”和“的服務(wù)”
AssayBiotech  CUSABIO   Immunoway  Santa   Abcam   Cst   jackson   Pierce  Sigma  Amresco  Qiagen  Cayman  abnova  millipore  invitrogen  merk  ebioscience prospec
 LifeSpan  BD 歡迎廣大客戶咨詢，另有大量宣傳海報(bào)和小禮品贈(zèng)送。
：www.biohj.com  
：382603320   1284882975

：     
 
 

*-21/IL 21 Human

產(chǎn)品編號(hào)：CYT-408
產(chǎn)品規(guī)格：2μg/10μg/1mg
 

Synonyms Za11, IL-21.
Introduction IL-21 is produced by CD4+ T cells in response to antigenic stimulation. Its action enhances antigen-specific responses of immune cells. The biological effects of IL-21 include induction of differentiation of T-cells-stimulated B-cells into plasma cells and memory B-cells, stimulation （in conjuction） with IL-4 of IgG production, and induction of apoptotic effects in naive B-cells and stimulated B-cells in the absence of T-cell signaling. Additionally, IL-21 promotes the anti-tumor activity of CD8+ T-cells and NK cells. IL-21 exerts its effect through binding to a specific type I cytokine receptor, IL-21R, which also contains the gamma chain （°C） found in other cytokine receptors including IL-2, IL-4, IL-7, IL-9 and IL-15. The IL-21/IL-21R interaction triggers a cascade of events which includes activation of the tyrosine kinases JAK1 and JAK3, followed by activation of the transcription factors STAT1 and STAT3.
Description Interleukin-21 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 133 amino acids and having a total molecular mass of 15,463 Dalton.
The IL-21 is purified by proprietary chromatographic techniques.
Source Escherichia Coli.
Physical Appearance Sterile Filtered White lyophilized （freeze-dried） powder.
Formulation Lyophilized from a concentrated （1mg/ml） solution containing no additives.
Solubility It is recommended to reconstitute the lyophilized Interleukin -21 in sterile 18MΩ-cm H2O not less than 100μg/ml, which can then be further diluted to other aqueous solutions.
Stability Lyophilized Interleukin-21 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL21 should be stored at 4°C between 2-7 days and for future use below -18°C.
For long term storage it is recommended to add a carrier protein （0.1% HSA or BSA）.
Please prevent freeze-thaw cycles.
Purity Greater than 95.0% as determined by:
（a） Analysis by RP-HPLC.
（b） Analysis by SDS-PAGE.
Amino acid sequence The sequence of the first five N-terminal amino acids was determined and was found to be Gln-Gly-Gln-Asp-Arg.
Biological Activity The ED50=1-10ng/ml, determined by the dose-dependant proliferation of human peripheral blood mononuclear cells.
Protein content Protein quantitation was carried out by two independent methods:
1. UV spectroscopy at 280 nm using the absorbency value of 0.54 as the extinction coefficient for a 0.1% （1mg/ml） solution. This value is calculated by the PC GENE computer analysis program of protein sequences （InliGenetics）.
2. Analysis by RP-HPLC, using a standard solution of IL-21 as a Reference Standard.
Usage ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.


您感興趣的產(chǎn)品PRODUCTS YOU ARE INTERESTED IN

環(huán)保在線 設(shè)計(jì)制作，未經(jīng)允許翻錄必究 .? ? ? Copyright(C)?2021 http://www.zuisujiong.cn,All rights reserved.

以上信息由企業(yè)自行提供，信息內(nèi)容的真實(shí)性、準(zhǔn)確性和合法性由相關(guān)企業(yè)負(fù)責(zé)，環(huán)保在線對(duì)此不承擔(dān)任何保證責(zé)任。 溫馨提示：為規(guī)避購(gòu)買風(fēng)險(xiǎn)，建議您在購(gòu)買產(chǎn)品前務(wù)必確認(rèn)供應(yīng)商資質(zhì)及產(chǎn)品質(zhì)量。

會(huì)員登錄

×

請(qǐng)輸入賬號(hào)

請(qǐng)輸入密碼

=

請(qǐng)輸驗(yàn)證碼

收藏該商鋪

請(qǐng) 登錄 后再收藏

提示

您的留言已提交成功！我們將在第一時(shí)間回復(fù)您~
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |