High Molecular marker

Hi all,
I am looking for a High Molecular marker above 200kDa.
Should work in Tris-HCl 4-16% gels, and preferbly prestained.
I found something from Invitrogen. But looking for other ideas?
Guy

hi, Guy

I found the "Sigma SDS6H2 Molecular Weight Marker (M.W. 30,000-200,000)

Contains a lyophilized mixture of the six following proteins:
Carbonic Anhydrase, Bovine 29 kDa
Albumin, Egg 45 kDa
Albumin, Bovine 66 kDa
Phosphorylase B, Rabbit 97.4 kDa
β-Galactosidase, E. coli 116 kDa
Myosin, Rabbit muscle 200 kDa

Thanks,
The problem is that it goes up to 200kDa I am looking for something above it any other ideas?

pierce does have marker up to 215kDa, but only prestained


http://www.piercenet.com/products/browse.cfm?fldID=4016CAE2-1C0A-4D2F-8248-3EE144F08CAD

Thanks, but once again to low.
I prefer prestained and I think that pierce have got very good products but unfortonately I could not find any thing that will match my needs.
Guy