Re: [ccp4bb] units of the B factor

2009-11-21 Thread James Stroud
To avoid the creation of a cumbersome new unit everyone will need to keep track of, can we just come up with a prefix that means 0.013 of something? Perhaps we could give it the symbol b and then we could say the B-factor is 20 bA^2.* James *Seemed like 76.92 b humor units when I wrote

Re: [ccp4bb] hairpin formation in gene

2009-11-21 Thread Ezra Peisach
Maybe... Depending on the energetics - it could stall the translation - or prevent initiation if it is at the start of the ORF. If it is in the middle - you might be ok... Usually the gene synthesis company can recommend alternate sequences that do not run into this problem or rare codon

Re: [ccp4bb] hairpin formation in gene

2009-11-21 Thread Artem Evdokimov
Dear Sangeetha, Can I assume that you detected the hairpin by computational means? In general a single hairpin may not necessarily doom your experiment or reduce expression - however you could reduce the hairpin stability via silent codon changes just to be on the safe side. Keep in mind that

Re: [ccp4bb] units of the B factor

2009-11-21 Thread Dale Tronrud
This question by the Mad Scientist (here after the MS) has provoked me to give the topic a lot of thought. I think I can provide some direction towards the solution, but I'm not adept enough with The Optical Principles of the Diffraction of X-rays (Which people on this BB should refer to