Re: [ccp4bb] offtopic__which crystals to harvest

2009-01-14 Thread V. Nagarajan
] On Behalf Of Artem Evdokimov Sent: Tuesday, January 13, 2009 8:10 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] offtopic__which crystals to harvest Hi, A few simple hints: (Please note that I am aware of the inexact language in the statements below but I don't have the time to write

Re: [ccp4bb] offtopic__which crystals to harvest

2009-01-14 Thread Van Den Berg, Bert
of V. Nagarajan Sent: Wed 1/14/2009 2:49 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] offtopic__which crystals to harvest Actually, UV fluorescence imaging appears to be a pretty reliable means of discriminating protein crystals, provided your protein has Trp residue(s). V. Nagarajan JAN

[ccp4bb] offtopic__which crystals to harvest

2009-01-13 Thread deliang
Hi there, Since a lot of different forms of crystals shows, I am using a quick/simple strategy to choose crystals by applying a force on the crystal against the wall, with the nylon loop. Some can never break apart, so they are salt crystals? The others can not survive the force and lose

Re: [ccp4bb] offtopic__which crystals to harvest

2009-01-13 Thread Artem Evdokimov
various quasi-crystalline artefacts. Good luck, Artem _ From: CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] On Behalf Of deliang Sent: Tuesday, January 13, 2009 10:50 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] offtopic__which crystals to harvest Hi there, Since a lot

Re: [ccp4bb] offtopic__which crystals to harvest

2009-01-13 Thread James Stroud
1. Pick many representative samples from each morphological class. 2. Take as many notes about the appearance, habits, and physical properties of each crystal that you can. 3. Screen every crystal for diffraction in a variety of cryo- protectants, etc. 4. All protein crystals were meant to be