Re: [ccp4bb] [EXT] Re: [ccp4bb] [EXT] [ccp4bb] Crystallizing a tough target

2024-02-05 Thread kavyashreem
Dear Patrick, Thank you for the insight! Regards Kavya On 2024-02-06 00:29, Patrick Shaw Stewart wrote: >> is it logical to say that if the protein is highly charged (either negative >> or positive), it is likely to be more soluble and resist crystallization due >> to electrostatic repu

Re: [ccp4bb] [EXT] Re: [ccp4bb] [EXT] [ccp4bb] Crystallizing a tough target

2024-02-05 Thread kavyashreem
Dear Guillaume, That is right, if not for cations it would not have been possible. We will check with the surface entropy reduction. Since we are designing inhibitors for it, we cannot afford to do to much modifications. Thank you Regards Kavya On 2024-02-06 03:49, Guillaume Gaullie

Re: [ccp4bb] [EXT] [ccp4bb] Crystallizing a tough target

2024-02-05 Thread Guillaume Gaullier
Hello, Regarding this question: A curious question - is it logical to say that if the protein is highly charged (either negative or positive), it is likely to be more soluble and resist crystallization due to electrostatic repulsion? Our protein has highly positively charged surface, although

Re: [ccp4bb] [EXT] [ccp4bb] Crystallizing a tough target

2024-02-05 Thread Tao-Hsin Chang
Dear Kavya, I wanted to share with you that we have faced the same issue with a few projects. In addition to the great suggestions given earlier, I recommend trying out fusion proteins, such as the surface entropy reduction MBP mutant, or using protein binding partners like antibodies or natura

Re: [ccp4bb] [EXT] [ccp4bb] Crystallizing a tough target

2024-02-05 Thread Patrick Shaw Stewart
> > is it logical to say that if the protein is highly charged (either > negative or positive), it is likely to be more soluble and resist > crystallization due to electrostatic repulsion? Hi Kavyashreem The project that I mentioned, where we looked at the crystallization conditions reported in

Re: [ccp4bb] [EXT] [ccp4bb] Crystallizing a tough target

2024-02-05 Thread kavyashreem
Dear all, Thank you all for your valuable experiences, inputs and references!! I shall try them and hope for some good news! Its good to know there are so many examples of crystallization at such high concentrations. A curious question - is it logical to say that if the protein is highly char