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Re: [ccp4bb] FE-Sulfur proteins |
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CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999Subject: Re: FE-Sulfur proteins From: "Edward A {- dot -} Berry" BerryE {- at -} UPSTATE {- dot -} EDU Date: 2012-07-11 Good to know about this ISC operon! Do you know if it is specific for Rieske-type His2/Cys2 Fe2S2 clusters, or for FeS clusters in general? Thus wild-type E. coli is already making three types of ISC clusters for succinate dehydrogenase or fumarate reductase (although some help might be needed for overexpression) but I don't know if it has any Rieske-type clusters. Kelly Daughtry wrote: > Jan, > Do you express the protein with the /E. coli isc/ iron-sulfur cluster synthetic operon? > I found great success, see: > > Daughtry, KD et. al. JACS 2012 > http://pubs.acs.org/doi/full/10.1021/ja2111898 > > - Kelly Daughtry > > ******************************************************* > Kelly Daughtry, Ph.D. > Post-Doctoral Fellow, Raetz Lab > Biochemistry Department > Duke University > Alex H. Sands, Jr. Building > 303 Research Drive > RM 250 > Durham, NC 27710 > P: 919-684-5178 > ******************************************************* > > > On Wed, Jul 11, 2012 at 6:22 AM, Jan Rashid Umar > > > Dear All, > > I will be grateful to your suggestions about Iron-Sulfur cluster protein purification. > My colleague has some problems with the purification and it seems that the iron-sulfur > cluster might be deformed, and protein is aggregated. The purification is done under > aerobic (normal condition), and is there some method to reintegrate iron sulfur > cluster back into the protein molecule under these conditions. Can anybody suggest > some literature, protocol or something that can improve the protein aggregation? > > I look forward to hearing from you. > > Best wishes, > > Jan > > CCP4bb navigationCCP4bb <-- 1999 <-- November 1999 <-- 30 November 1999 |
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