What does the color of my protein solution mean?

Carlo Zambonelli via methods%40net.bio.net (by zambonel from gmail.com)
Mon Oct 30 14:58:14 EST 2006


Google quickly answers your question with at least one example:
ceruloplasmin (color comes from Cu binding). I would bet more proteins
(involved in Fe transport?) are out there.

On 10/30/06, Pow Joshi <pow.joshi from gmail.com> wrote:
>
> 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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