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immunocytochemistry protocol for biotinylated primary antibody

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Hi,
This is going to be the first immunocytochemistry I perform, and I'd like to ask for advice first. I'll determine the relative levels of alpha2beta1 integrin in different human cell lines.
The lab manager ordered a primary antibody that has biotin attached already. All the protocols I compiled call for a secondary antibody -evidently I'll have to change them.
What difference does it make if I use a primary antibody with a biotin tag in regards to signal-to-noise ratio, sensitivity, etc? What should I use as controls, and what kind of blocking steps would be necessary?

Any advice is greatly appreciated (in immunocytochemistry in general as well...).
Thank you.

Andras
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