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  4. Streptavidin

Streptavidin  (Synonyms: 鏈霉親和素)

目錄號(hào): HY-P3152 純度: 98.40%
COA 產(chǎn)品使用指南

Streptavidin 是一種約 60 kDa 的同型四聚體。Streptavidin 高親和力地結(jié)合四個(gè)生物素分子。生物素與 Streptavidin 的結(jié)合親和力是迄今為止報(bào)道的最高非共價(jià)相互作用之一，KD 約為 0.01 pM。Streptavidin 具有免疫抑制作用。

MCE 的所有產(chǎn)品僅用作科學(xué)研究或藥證申報(bào)，我們不為任何個(gè)人用途提供產(chǎn)品和服務(wù)

Streptavidin Chemical Structure

Streptavidin Chemical Structure

CAS No. : 9013-20-1

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規(guī)格 價(jià)格 是否有貨 數(shù)量
1 mg ￥500
In-stock
5 mg ￥1600
In-stock
10 mg ￥2400
In-stock
50 mg   詢價(jià)  
100 mg   詢價(jià)  

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Customer Review

MCE 顧客使用本產(chǎn)品發(fā)表的 2 篇科研文獻(xiàn)

  • 生物活性

  • 純度 & 產(chǎn)品資料

  • 參考文獻(xiàn)

生物活性

Streptavidin is a ～60 kDa homotetramer. Streptavidin binds four molecules of biotin with the highest affinity. The binding affinity of biotin to streptavidin is one of the highest reported for a non-covalent interaction to date, with a KD ～ 0.01 pM[1]. Streptavidin has an immunosuppressive role[2].

體外研究
(In Vitro)

Streptavidin (2-200 μg/mL) significantly suppresses the proliferation of Lewis T cells to WF by 76%-83% compared with untreated responders[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Viability Assay[1]

Cell Line: Lewis T cells
Concentration: 2-200 μg/mL
Incubation Time:
Result: Inhibited the proliferation of Lewis T cells to WF stimulators by 76%-83% compared with untreated responders, lower concentrations of 0.1 and 0.2 μg/mL did not significantly inhibit T-cell proliferation.
體內(nèi)研究
(In Vivo)

Streptavidin (8-80 mg/kg) treatment is effective in prolonging rat cardiac allografts in the high-responder WF-to-Lewis combination[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: Lewis rats[2]
Dosage: 8, 12, 20, 40, 60, or 80 mg/kg
Administration: Administered IP for 5 consecutive days after transplantation was combined with a single dose of 0.5 mL antilymphocyte serum (ALS) on day 0
Result: Prolonged cardiac allograft survival from MST of 7.3±0.5 and 8.4±0.5 days in naive and ALS-treated controls, respectively, to 15±1, 20±3, 16±3, 17±3, and 23±2 days, respectively.
CAS 號(hào)
性狀

固體

顏色

White to off-white

中文名稱

鏈霉親和素
運(yùn)輸條件

Room temperature in continental US; may vary elsewhere.
儲(chǔ)存方式

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

溶解性數(shù)據(jù)
細(xì)胞實(shí)驗(yàn)： 

H2O 中的溶解度 : 100 mg/mL (超聲助溶)

  • 摩爾計(jì)算器

  • 稀釋計(jì)算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

質(zhì)量
=
濃度
×
體積
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

濃度 (start)

C1

×
體積 (start)

V1

=
濃度 (final)

C2

×
體積 (final)

V2

動(dòng)物溶解方案計(jì)算器
請(qǐng)輸入動(dòng)物實(shí)驗(yàn)的基本信息：

給藥劑量

mg/kg

動(dòng)物的平均體重

g

每只動(dòng)物的給藥體積

μL

動(dòng)物數(shù)量

只
由于實(shí)驗(yàn)過程有損耗，建議您多配一只動(dòng)物的量
計(jì)算結(jié)果
工作液所需濃度 : mg/mL
該產(chǎn)品水溶性佳，請(qǐng)具體參考實(shí)測(cè) 水 / PBS / Saline 中的溶解度數(shù)據(jù)。
您所需的儲(chǔ)備液濃度超過該產(chǎn)品的實(shí)測(cè)溶解度，如有需要，請(qǐng)與 MCE 中國(guó)技術(shù)支持聯(lián)系。
純度 & 產(chǎn)品資料

純度: ≥99.0%

參考文獻(xiàn)
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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產(chǎn)品名稱：
Streptavidin
目錄號(hào)：
HY-P3152
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