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protein degradation


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3 replies to this topic

#1 jasmina

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Posted 17 November 2010 - 04:20 AM

how can we deduce that our protein extract is degradated from western blot images.
i did WB on samples from brain tissue, that was in -20C since 2 or 3 months, and some 1 week.
i saw different profile on my filter after w.b. the signal is lower in the samples kept 3months in -20C. morever, there are some bands at the top of the filter. but may be this is due to aspecifics because of secondary antibody..
if u have ideas about this topic, thanks for your interaction

#2 mdfenko

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Posted 17 November 2010 - 08:46 AM

the bands at the top of the membrane may be due to aggregation of the antigen. this may account for the reduced signal at the normal migration distance.
talent does what it can
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#3 knuf

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Posted 17 November 2010 - 01:52 PM

If the protein is degraded, you will see bands (or smears) at smaller molecular weights

#4 jasmina

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Posted 17 November 2010 - 02:04 PM

its what i see in my western!
smears in below!! so, i think its my samples which are degradated.




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