Re: [ccp4bb] Maltose binding protein as a tag

2013-07-25 Thread Konstantinos Paraskevopoulos
Dear all, I would like to thank everyone for being so kind and sparing their time to respond. Just to summarise from all the responses that I got that may help someone else: MBP on its own is monomeric and tends to 'magically' help pretty much every protein you throw at it to become soluble. In

[ccp4bb] Maltose binding protein as a tag

2013-07-24 Thread Konstantinos Paraskevopoulos
Dear all, I would like to ask if someone has experience with maltose binding protein (MBP) as a tag. My protein fused to MBP seems to form oligomers that I find difficult to prevent and I was wondering if mbp behaves similar to gst and may also be prone to dimerisation/oligomerisation Many thanks

Re: [ccp4bb] Maltose binding protein as a tag

2013-07-24 Thread Gang Dong
: Wednesday, July 24, 2013 3:07 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Maltose binding protein as a tag Dear all, I would like to ask if someone has experience with maltose binding protein (MBP) as a tag. My protein fused to MBP seems to form oligomers that I find difficult to prevent

Re: [ccp4bb] Maltose binding protein as a tag

2013-07-24 Thread Bostjan Kobe
: [ccp4bb] Maltose binding protein as a tag Dear Kostas, MBP by itself is a monomer. In most of our cases using it as a fusion tag, the yield of a target protein increases drastically (i.e. 5 to 20 folds more). However, we have seen in a couple of cases that the target proteins strongly interact