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Problems with custom polysera!!!

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Antibody Forum. Ask and discuss antibody suppliers, antibody related techniques and protocols, and antibody production such as using phage display libraries.



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Old 01-30-2008, 05:46 PM
Pipette Filler
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Default Problems with custom polysera!!!

Hi all,
We are working with identification of some motor pumps ( HeLa cell line) using custom polyclonal sera obtained from some reputed company. We have used this polysera to identify the target protein (6x-His-v5 tag) on western blot.Surprisingly, this polysera recognized a protein of higher size ( more than 15 kDa) than the one recogized by the comercial anti-v5 antibody( Invitrogen).
We don't know why this migrational differences?
We highly appreciate your suggesations on this-
Thanks-
Anil
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