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IP10

蛋白G Plus/蛋白A-琼脂糖

A mixture of Protein G PLUS and Protein A covalently conjugated to agarose. Useful for purification of IgG from biological fluids.

同義詞:

蛋白G琼脂糖

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NACRES:
NA.56
UNSPSC Code:
41116133
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form

slurry (Liquid)

contains

≤0.1% sodium azide as preservative

manufacturer/tradename

Calbiochem®

storage condition

do not freeze

technique(s)

protein purification: suitable

suitability

suitable for microbiology

shipped in

wet ice

storage temp.

2-8°C

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本產品
IP05IP04IP02
technique(s)

protein purification: suitable

technique(s)

protein purification: suitable

technique(s)

immunoprecipitation (IP): suitable

technique(s)

-

form

slurry (Liquid)

form

slurry (Liquid)

form

slurry (Liquid)

form

slurry (Liquid)

suitability

suitable for microbiology

suitability

suitable for microbiology

suitability

suitable for immunoprecipitation

suitability

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

contains

≤0.1% sodium azide as preservative

contains

≤0.1% sodium azide as preservative

contains

≤0.1% sodium azide as preservative

contains

≤0.1% sodium azide as preservative

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

General description

设计用于低压力下的免疫球蛋白纯化。产品尺寸是指填充微珠的体积。
与琼脂糖共价结合的蛋白G PLUS和蛋白A的混合物。可用于从生物体液中纯化IgG。

Application

抗体纯化

Physical form

PBS 中 50%混悬剂。

Other Notes

注:产品尺寸是指填充微珠的体积。该产品可直接与血清、血浆、组织培养基、腹水或其他生物体液一起使用,但如果有足够数量的起始物料,我们建议进行初始清洁步骤。如果在清洁步骤中从免疫球蛋白中除去聚集蛋白和脂质,则色谱柱寿命将大大延长。每毫升血清使用5-10毫升填充的珠子。



IgG纯化的推荐方案



缓冲液



所述的所有浓度均用于工作溶液,而不是10X浓缩液。注意:叠氮化钠是有毒的。



结合/洗涤缓冲液:100 mM磷酸钠pH值7.0、150 mM氯化钠、5 mM钠EDTA、0.01%叠氮化钠。

洗脱缓冲液A(见注释部分):500 mM醋酸铵pH值3.0,0.01%叠氮化钠。

洗脱缓冲液B:10 mM甘氨酸/HCl pH值3.0和0.01%叠氮化钠。

中和缓冲液:500 mM Tris碱,0.01%叠氮化钠。

贮备液:100 mM磷酸钠,pH值7.0,0.01%叠氮化钠。



方案



A。清理和浓缩

腹水和血清应在室温下凝结,在4°C冷藏过夜(以使凝块收缩并分离脂质),并多次离心以去除全部凝结的蛋白和脂质。用玻璃棒或小木棍将离心管顶部的脂质去除。应将组织培养基离心或过滤以除去聚集体。

IgG可以通过硫酸铵沉淀步骤进行浓缩和部分纯化。搅拌下添加硫酸铵至50%饱和度(313 g/L),并通过加入1 M HCl或NaOH检查pH值是否调节至7.0。离心以收集沉淀的免疫球蛋白,溶解在结合缓冲液中,并使用相同的缓冲液进行透析。



B.纯化

1.用琼脂糖结合物填充色谱柱

2.用约20倍柱体积的洗涤/结合缓冲液洗涤,直至洗脱液的pH值为7.0.

3.如果先前未针对结合缓冲液透析IgG,则将含IgG的样品稀释或透析到洗涤/结合缓冲液中(pH值6.5-7.5)。

4.将样品上样至色谱柱。

5.用洗涤/结合缓冲液洗涤,直到洗脱液在280 nm处的吸光度接近背景水平。

6.用洗脱缓冲液A洗涤以洗脱IgG,并收集组分直至A280恢复至背景水平。

7.用洗脱缓冲液B洗涤,收集组分直至A280恢复至背景。大多数IgG应该用缓冲液A洗脱。

8.加入等体积的中和缓冲液中和洗脱的IgG组分,并用pH值试纸检查pH值。为了获得最佳结果,请立即中和洗脱液。

9.为了立即重复使用色谱柱,重复步骤2的步骤。

10.为准备储存用色谱柱,用5倍柱体积的洗脱缓冲液B清洗色谱柱。

11.为储存色谱柱,使用30倍柱体积的储存缓冲液清洗;然后密封色谱柱出口并储存在冰箱中。

12.使用以下公式对纯化的IgG进行定量:



280 nm处的吸光度/1.4=浓度(mg/mL)。



为了制备洗脱缓冲液A,从乙酸开始,用氢氧化铵将pH值调节至3.0。

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

毒性:标准处理(A)

存儲類別/等級

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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The Journal of biological chemistry, 290(14), 8888-8903 (2015-02-11)
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相關內容

我們生產 IP 和抗體純化琼脂糖珠,可純化免疫球蛋白和 IgG 分離物。我們的試劑盒也提供全抗體純化製程

We manufacture IP and antibody purification agarose beads that purify immunoglobulins and IgG fractions. Our kits also provide a total antibody purification process

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