What does the color of my protein solution mean?

Pow Joshi via methods%40net.bio.net (by pow.joshi from gmail.com)
Mon Oct 30 14:15:26 EST 2006


On 10/30/06, Carlo Zambonelli <zambonel from gmail.com> wrote:
> A "blue" protein most likely contains a metal cofactor (i.e. iron)
> coordinated to Tyr and possibly Asp or Glu and Cys.
sure, and that's what we fancied .... however, wonder what kind of
blue protein exists in the mammalian serum....

thanks
pow
> Carlo
>
> On 10/30/06, Pow Joshi <pow.joshi from gmail.com> wrote:
> >
> > On 10/30/06, Pow Joshi <pow.joshi from gmail.com> wrote:
> > > On 10/27/06, Domo <rimask from yahoo.com> wrote:
> > > > got HNO3?
> > > > some acid? - neutralise using NaOH
> > > >
> > > > "Yang" <redondoself from gmail.com> wrote in message
> > > > news:1161920815.218817.157860 from e3g2000cwe.googlegroups.com...
> > > > > Hi,guys! I need your help!
> > > > > I recently purified a protein. It is in yellow color.
> > > > > What does the color mean?
> > > > > Thank you in advance!
> > > > >
> > >
> > > hi,
> > >
> > > was wondering what your starting material was...... long time ago we
> > > had a blue protein, and it did'nt mean a thing...atleast not to me :))
> >
> > ...adding to my previous comment, if it's quite concentrated a
> > fraction (it will be frothing a little as well), it might apprear as a
> > pale yellow fluid ...(eg: albumin ) ..... it's just an observation
> > ....
> >
> > >
> > > best
> > > pow
> >
> > > >
> > > >
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>
>



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