Re: [ccp4bb] Deglycosylation enzymes

2010-07-08 Thread Shaun Lott
Or you could just bug me to find the PNGaseF expression plasmid that I should have in the freezer somewhere! LOO T., PATCHETT M. L., NORRIS G. E. & LOTT J. S. “Using Secretion to Solve a Solubility Problem: High-yield Expression in E. coli and Purification of the Bacterial Glycoamidase PNGase F

Re: [ccp4bb] Deglycosylation enzymes

2010-06-18 Thread A. Radu Aricescu
Original message >Date: Fri, 18 Jun 2010 17:10:55 +1000 >From: CCP4 bulletin board (on behalf of Aaron Oakley >) >Subject: [ccp4bb] Deglycosylation enzymes >To: CCP4BB@JISCMAIL.AC.UK > >Hi all, > >I am looking to obtain plasmids encoding the deglycosylating enzy

[ccp4bb] Deglycosylation enzymes

2010-06-18 Thread Aaron Oakley
Hi all, I am looking to obtain plasmids encoding the deglycosylating enzymes peptide-N-glycosidase F and endoglycosidase F1 for expression as fusion proteins with GST. They were described in the following paper: Deglycosylation of proteins for crystallization using recombinant fusion protein g

Re: [ccp4bb] deglycosylation of proteins expressed in mammalian cells at room temperature or lower

2009-06-02 Thread Pius Padayatti
will work fine but leave overnight. psp On Tue, Jun 2, 2009 at 5:36 PM, Jerry McCully wrote: > Dear All: > >    Recent we expressed one protein using mammalian cells but this > protein was highly glycosylated (30% of the total molecular weight). > >    We want to remove some carbohydrate

[ccp4bb] deglycosylation of proteins expressed in mammalian cells at room temperature or lower

2009-06-02 Thread Jerry McCully
Dear All: Recent we expressed one protein using mammalian cells but this protein was highly glycosylated (30% of the total molecular weight). We want to remove some carbohydrate by enzymatic digestion for the convenience of crystallization. However, this protein tends to aggregat

Re: [ccp4bb] Deglycosylation

2008-09-25 Thread Mark Mayer
One thing to watch out for: in addition to frustrating crystallographers those sugars play other roles in protein chemistry, and its not uncommon for the solubility of proteins to change dramatically after deglycosylation. Good luck! MLM

Re: [ccp4bb] Deglycosylation

2008-09-25 Thread Joao Dias
riginal message Date: Thu, 25 Sep 2008 11:30:24 -0700 From: Eugenio De la Mora <[EMAIL PROTECTED]> Subject: [ccp4bb] Deglycosylation To: CCP4BB@JISCMAIL.AC.UK Dear all, We have some troubles with the cristallization of glycosylated proteins and want to try to deglycosate them. We have

Re: [ccp4bb] Deglycosylation

2008-09-25 Thread A. Radu Aricescu
on of Structural Biology Roosevelt Drive, Oxford OX3 7BN United Kingdom Phone: +44-1865-287551 Fax: +44-1865-287547 Original message >Date: Thu, 25 Sep 2008 11:30:24 -0700 >From: Eugenio De la Mora <[EMAIL PROTECTED]> >Subject: [ccp4bb] Deglycosylation >To: CCP4BB@JISCMAIL

[ccp4bb] Deglycosylation

2008-09-25 Thread Eugenio De la Mora
Dear all, We have some troubles with the cristallization of glycosylated proteins and want to try to deglycosate them. We have never done this so we want to know what enzymes are the best (efficiency; less protein loss, ... ). And if it gaves better results in crystallization screens. Thank yo