Re: [ccp4bb] Long term storage for raw images/ crystallographic data sets

2018-11-30 Thread Herbert J. Bernstein
Dear Colleagues, May I suggest that those who are at Universities take a look at the G-suite for Education https://edu.google.com/products/gsuite-for-education/editions/?modal_active=none which provides unlimited cloud storage for free to educational institutions. Regards, Herbert On T

[ccp4bb] CHAPS provider

2018-11-30 Thread Sebastiano Pasqualato
Dear all, we are considering whether to buy the columns and reagents to purify our own Wnt3 protein or to buy it. Given that the purification requires large amount of column eluents with 1% CHAPS, we are looking for the cheapest CHAPS provider to understand if the in-house purification is worth

Re: [ccp4bb] CHAPS provider

2018-11-30 Thread Tomas Malinauskas
Hi Sebastiano, we often buy chemicals (including CHAPS) from Melford: https://www.melford.co.uk/products/biochemicals/detergents-surfactants/chaps-1-g.html It is often cheaper than Sigma-Aldrich. Hope that helps, Tomas On Fri, Nov 30, 2018 at 2:42 PM Sebastiano Pasqualato wrote: > > > Dear all, >

Re: [ccp4bb] buying a cluster

2018-11-30 Thread James Holton
I have a dissenting opinion about computers "moving on a bit".  At least when it comes to most crystallography software. Back in the late 20th century I defined some benchmarks for common crystallographic programs with the aim of deciding which hardware to buy.  By about 2003 the champion of m

Re: [ccp4bb] Long term storage for raw images/ crystallographic data sets

2018-11-30 Thread James Holton
The answer depends a lot on what you mean by "long-term storage". Do you want the data to be available all the time on a mountable volume?  Or is putting it away on a shelf OK?  Do you want the storage to be as bulletproof and worry-free as possible?  Or are you OK with the fate of your data be

Re: [ccp4bb] CHAPS provider

2018-11-30 Thread mesters
Hi, trick is to figure out the chemical company that really synthesizes the product as many parties buy the stuff from one supplier only and repack it into smaller bottles and reprice it (at considerably higher costs). In the Sigma catalogue for example, these products were once marked with t