help with a biochemistry lab

[John Kuszewski]

Johns Hopkins uses hen egg white lysozyme for its intro biochem
lab.  Easy to make a whole bunch of it, obvious where it comes
from, and easy to assay in a biologically meaningful (as well
as very cool) way--by looking at the turbidity of a 
solution of bacteria that have been fed to the lysozyme, you
can watch them get eaten over time.  

All in all a great choice for an intro lab.

Hope this helps.

--JK



Bruce Wightman wrote:
> 
> I was wondering if anyone could provide suggestions for good proteins to
> partially purify/purify for an introductory biochemistry lab for
> undergraduates.  I'd like to be able to give students an experience with
> purification by gel filtration, ion exchange, and/or affinity
> chromatography.  Preferably, the protein should have an activity that can
> be assayed easily and cheaply.  The starting material should be something
> that's clearly recognizable as "life".  Unfortunately, the number of steps
> has to be very limited, as time does not allow anything particularly
> complicated.  Also, it has to be doable at room temperature.
> 
> Any ideas, good references, or protocols?
> 
> Thanks-
> Bruce Wightman
> Department of Molecular and Cell Biology
> 401 Barker Hall- Garriga Lab
> University of California
> Berkeley, CA   94720-3204

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John Kuszewski                     ||  |/  /|  ||      
johnk at spasm.niddk.nih.gov          ||  /  /||  ||
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that's MISTER protein G to you!     |/__/|      |
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My parents went to Zaire and all I got 
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