Sean Seaver wrote:
>> Better yet, RbBr? and pH MES, MOPS, and HEPES with RbOH?
>> I haven't checked the price.
>
> Including shipping in the US
>
> RbBr: 50 g 99% pure is ~$150.
> RbOH: 25g 99+% pure in 50 % water runs about ~$120.
>
> It would be interesting to see how the substitution would influence the crystallization or crystal integrity such as a quick soak just before data collection.
>
I seem to remember that Br(-) at high concentrations is
pretty chaotropic. Something about NaBr wash to remove
peripheral protein from membranes.
eab
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