Not surprising since I'm sure they are both based on the Crick-Magdoff
equation (http://dx.doi.org/10.1107/S0365110X56002552) or the very
similar Hendrickson-Teeter equation (http://dx.doi.org/10.1038/290107a0).
Practically important thing is the signal-to-noise ratio. Roughly
speaking, to me
Similar result. Taking all defaults except #atoms, amt protein:
kDa #res #sites BjvtRatio
protein of interest:
LBL: 469 12 0.0153 (4 e-)
Ruppweb 427312 0.016(edge + 1 ev)
Ruppweb 4273
I put together a little jiffy for feasibility of MAD experiments here:
http://bl831.als.lbl.gov/xtalsize.html
It does not calculate the f" value for you, but in general f" is ~4
electrons for K edges and ~10 electrons for L edges. Crossec can give
you more accurate values than this as long as
On Saturday, 01 June 2013, Edward A. Berry wrote:
> Is Ethan Merritt's anomalous scattering page at:
> http://www.bmsc.washington.edu/scatter/
> down or moved, or the firewall I'm behind is blocking it?
The UW, in its infinite wisdom, scheduled a power outage
today so that they could replace the
CMAIL.AC.UK] on behalf of Edward A. Berry
[ber...@upstate.edu]
Sent: Saturday, June 01, 2013 6:46 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] anomalous scattering server down?
That's what I wanted. Results are not promising- Bijvoet differences
would be less than 2% at peak, and this is
[ber...@upstate.edu]
Sent: Saturday, June 01, 2013 6:46 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] anomalous scattering server down?
That's what I wanted. Results are not promising- Bijvoet differences
would be less than 2% at peak, and this is not lysozyme.
Thanks, all,
eab
Mooers, B
ering-links.html?sfvrsn=0
From: CCP4 bulletin board [CCP4BB@JISCMAIL.AC.UK] On Behalf Of Edward A. Berry
[ber...@upstate.edu]
Sent: Saturday, June 01, 2013 6:09 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] anomalous scattering server down?
Hmm- looks
, 2013 6:09 PM
To: CCP4BB@JISCMAIL.AC.UK
Subject: Re: [ccp4bb] anomalous scattering server down?
Hmm- looks like crosssec calculates F' and F" (and cros-section).
I guess you're thinking of the "x-ray edge" page on the same server.
Ive got local copies and graphs of that in
Hmm- looks like crosssec calculates F' and F" (and cros-section).
I guess you're thinking of the "x-ray edge" page on the same server.
Ive got local copies and graphs of that in an excel spreadsheet.
I was thinking about the page where you enter your protein's
molecular weight, number and type of
seems to be down sorry.
you should be able to use crossec from ccp4
Jürgen
On Jun 1, 2013, at 6:47 PM, Edward A. Berry wrote:
Is Ethan Merritt's anomalous scattering page at:
http://www.bmsc.washington.edu/scatter/
down or moved, or the firewall I'm behind is blocking it?
I want to check feasib
Is Ethan Merritt's anomalous scattering page at:
http://www.bmsc.washington.edu/scatter/
down or moved, or the firewall I'm behind is blocking it?
I want to check feasibility of a native-iron MAD experiment,
and I'm not very good at math.
thanks,
eab
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