Re: [ccp4bb] binding protein to nickel column

2017-04-02 Thread chiara ardiccioni
Mark J van Raaij Inviato: sabato 1 aprile 2017 11.46 A: CCP4BB@JISCMAIL.AC.UK Oggetto: Re: [ccp4bb] binding protein to nickel column Could it be due to the fact that the protein is a histidine kinase - perhaps it is interacting with or even modifying its own his-tag? Mark J van Raaij Dpto de

Re: [ccp4bb] binding protein to nickel column

2017-04-01 Thread Mark J van Raaij
Could it be due to the fact that the protein is a histidine kinase - perhaps it is interacting with or even modifying its own his-tag? Mark J van Raaij Dpto de Estructura de Macromoleculas Centro Nacional de Biotecnologia - CSIC calle Darwin 3 E-28049 Madrid, Spain tel. (+34) 91 585 4616 http://w

Re: [ccp4bb] binding protein to nickel column

2017-03-30 Thread PULSARSTRIAN
Hi Shubhangi, As Edward suggested, you can try with N-terminal His tag. For this you can either clone in N-terminal His tagged based vectors or by site directed insertion of 18 nucleotides coding for 6 His at the N-terminus region. But, before that, I suggest

Re: [ccp4bb] binding protein to nickel column

2017-03-30 Thread Edward Pryor
K" Subject: [ccp4bb] binding protein to nickel column Hello I have a 10kda histidine kinase domain protein with a pI of 9.5. It has a C-term his tag and despite using different buffers the protein doesnt bind to the nickel cloumn. it comes out in the flow trhough. Buffers used- 50mM tris

[ccp4bb] binding protein to nickel column

2017-03-30 Thread Shubhangi Agarwal
Hello I have a 10kda histidine kinase domain protein with a pI of 9.5. It has a C-term his tag and despite using different buffers the protein doesnt bind to the nickel cloumn. it comes out in the flow trhough. Buffers used- 50mM tris Ph=8, 300mM NaCl 50mM tris Ph=7, 300mM N