There are quite a few MBP fusions in the PDB. Just search using MBP sequence
and you will get (among others):

1A7L
1HSJ
1IUD
1MG1
1MH3
1NMU
1R6Z

And so on...

Artem

-----Original Message-----
From: CCP4 bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of David
M Shechner
Sent: Thursday, November 13, 2008 8:32 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] SUMMARY - crystallization of proteins with His-tag
and/or c-myc tags

> I have a more general question that's come up in discussion with former
> colleagues: what's the largest tag that has been co-crystallized with the
> target protein?  I'm specifically wondering about MBP - we've encountered
> several proteins that would express decently (and, apparently, correctly
> folded) with a His-MBP tag but crashed out of solution when the tag was
> cleaved.  But I don't think anyone ever tried leaving the tag on for
> crystallization trials.  Or what about GST?

Hey, Nat, (et. al.),

Actually, I do know of one example using MBP.  Jamie Williamson's lab used
an
MBP fusion with the L30e protein in both their crystallographic and NMR
solution of its complex with RNA.  Check out the following, as well as
references therein:

Chao JA, Williamson JR. (2004) Joint X-ray and NMR refinement of the yeast
L30e-mRNA complex. Structure.2004 Jul;12(7):1165-76.

Cheers,
D.S.

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