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タンパク質の電気泳動分離

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Proteomic Center, Keck Graduate Institute of Applied Life Sciences

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Cite this Article: タンパク質の電気泳動分離

Chakavarti, B., Chakavarti, D. Electrophoretic Separation of Proteins. J. Vis. Exp. (16), e758, doi:10.3791/758 (2008).

Abstract: タンパク質の電気泳動分離

電気泳動はタンパク質の複雑な混合物を分離する(例えば、細胞、細胞内の分画、カラム画分、または免疫沈降から)、サブユニットの組成を調査するため、およびタンパク質サンプルの均質性を検証するために使用されます。また、さらにアプリケーションで使用するためのタンパク質を精製するのに役立つことができる。ポリアクリルアミドゲル電気泳動では、蛋白質はポリアクリルアミドゲルマトリックスの細孔を通して電界に反応して移行し、細孔サイズが増加するアクリルアミドの濃度が減少する。細孔径と蛋白質の電荷、大きさ、および形状の組み合わせは、タンパク質の移行速度を決定します。このユニットでは、標準をLaemmli法は、ドデシル硫酸ナトリウム(SDS)の存在下で、変性条件下で不連続ゲル電気泳動のために、すなわち記述されている。

Protocol: タンパク質の電気泳動分離

この実験的なアプローチのための完全なテキストのプロトコルでは使用可能です分子生物学におけるカレントプロトコール

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Disclosures: タンパク質の電気泳動分離

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5 Comments

Hi nice demo but I did not understand why the presenters kept on showing an agarose gel electrophoresed DNA gel in between as a representation instead of a protein gel.

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Posted by: swethaJune 15, 2008, 1:11 PM

SYPROorange and SYPROruby staining - two fluorescent-based protein detection methods - can appear like ethidium bromide stained DNA gels.  So those gels you are speaking of may actually be protein gels. 

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Posted by: Aaron K.June 16, 2008, 9:34 AM

Yeah possible,  but then why do we see only a single band.I guess SYPRO detection methods would detect the entire protein panel and not specific bands. unless otherwise they are detecting some specific enzyme activity using flourescent detection methods.

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Posted by: swethaJune 16, 2008, 9:52 AM

We loaded BSA.

Thanks.

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Posted by: Bulbul ChakravartiJune 17, 2008, 2:12 AM

Please not that we showed polyacrylamide gel electrophoresis and not agarose gel electrophoresis.

Thanks.

Bulbul Chakravarti

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Posted by: Bulbul ChakravartiJune 17, 2008, 2:08 AM

why cannot i see the video...? pls help me..

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Posted by: AnonymousOctober 10, 2008, 3:35 AM

i can see it now..thanks...

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Posted by: AnonymousOctober 10, 2008, 4:50 AM

my network is poor, I can not enjoy the video

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Posted by: Huang C.March 15, 2009, 6:30 AM

Hello,

Please shoot me an email at nikitab@jove.com and we'll figure something out for you.

Cheers,

Nikita

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Posted by: AnonymousMarch 22, 2009, 10:26 PM

Hi, thanks what can I download your video ? please help me

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Posted by: violet s.January 14, 2012, 10:35 AM

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