A sufficiently long piece of DNA works OK. On Sat, Feb 19, 2011 at 6:47 PM, Alexandra Deaconescu <[email protected]>wrote:
> Dear ccp4bb enthusiasts: > > A question unrelated to ccp4: can anyone recommend a good 250 kDa standard > for gel filtration that is commercially available? It could be a single > polypeptide or an oligomer too... > > Thanks a lot! > > Bests, > Alex >
