I think that giant hemoglobins of earthworms (at least up to 3.8 MD) will be
O.K. You can easily find a lot of references in Medline. I can remember that
somebody had passed the body fluid of earthworm through a gel filtration
column, collected the pink fraction, and used it as a MW standard.
Unfortunately, I cannot remember the reference.
Peeter Toomik
x wrote:
> Hello,
>> I'm searching for some proteins useable as MW-standards for gel filtration.
> I need some standards in the range form approx. 1 MDa to approx. 2.5 MDa.
> Commercial standards normally have a range up to 669 kDa and therefore are
> not appropriate. Any hints/tips which proteins to use are very welcome!
>> Thanks,
>> WG
>>graml at biochem.mpg.de
