Chemical Forums
Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: Notgoodatcalculations on March 19, 2019, 06:03:26 PM
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Hi,
I am having trouble with this calculation.
I need to perform a strevptavidin conjugation to biotinylated-completment. The biotinylated complement is 3"BiotinXXXXXXX at 200uL of 500uM Stock.
I know streptavidin consists of 4 subunits with a MW of 13000, each containing a single biotin binding site. The Streptavidin comes in at 10mg/mL. I have 100uL of it.
The molar ratio of 1 mole of streptavidin +4 moles of biotinylated molecule (assuming I have 1 biotin/mole of molecule).
What is the calculation I should use to get the right ratio?