Re: [ccp4bb] protein purity in SAXS

2009-04-23 Thread Eddie Snell
to a very good SAXS review article. > > Cheers, > Angela > > > > > Li Sheng > Sent by: CCP4 bulletin board > 04/23/2009 06:19 AM > Please respond to > Li Sheng > > > To > CCP4BB@JISCMAIL.AC.UK > cc > > Subject > [ccp4bb] protein

Re: [ccp4bb] protein purity in SAXS

2009-04-23 Thread Ho-Leung Ng
Since the SAXS signal comes from the size of your scattering particles, make sure you don't have large non-protein particles in your sample (dust or micelles, for example). The SIBYLS web site has additional warnings about including detergents in your sample. ho UC Berkeley

Re: [ccp4bb] protein purity in SAXS

2009-04-23 Thread Angela Criswell
To CCP4BB@JISCMAIL.AC.UK cc Subject [ccp4bb] protein purity in SAXS Dear all, Is there anyone with experience in small angle x-ray scattering? Could anyone please tell me the requirements for protein sample purity and concentration? Thanx in advance. Sincerely, Li

Re: [ccp4bb] protein purity in SAXS

2009-04-23 Thread Marco Mazzorana
3, 2009 1:19 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] protein purity in SAXS Dear all, Is there anyone with experience in small angle x-ray scattering? Could anyone please tell me the requirements for protein sample purity and concentration? Thanx in advance. Sinc

Re: [ccp4bb] protein purity in SAXS

2009-04-23 Thread Isabelle Billas Massobrio
Dear Li, the samples should be devoid of aggregates, at least for the low concentration samples. Some aggregation can be tolerated at the higher concentrations. You should in principle measure samples with different concentrations, such as 1, 2, 5,10 mg/mL. The high concentration measurements w

Re: [ccp4bb] protein purity in SAXS

2009-04-23 Thread Marjolein Thunnissen
ent: Thursday, April 23, 2009 1:19 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] protein purity in SAXS Dear all, Is there anyone with experience in small angle x-ray scattering? Could anyone please tell me the requirements for protein sample purity and concentration? Thanx in advance. Sincer

[ccp4bb] protein purity in SAXS

2009-04-23 Thread Li Sheng
Dear all, Is there anyone with experience in small angle x-ray scattering? Could anyone please tell me the requirements for protein sample purity and concentration? Thanx in advance. Sincerely, Li __ Email:s...@sibs.ac.cn Institute of Biochemistry and Ce