Re: [ccp4bb] making a paper model

2017-03-09 Thread Clement Angkawidjaja
Dear Alice, Instead of printing on paper, why not 3D-print it? Cheers, Clement -Original Message- From: Alice Clark Sent: Friday, March 10, 2017 1:18 AM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] making a paper model Dear All, How can I get a 2D net diagram from a 3D PDB structure,

Re: [ccp4bb] ANODE anomalous map in pymol

2017-02-28 Thread Clement Angkawidjaja
Have you tried changing the file extension to .ccp4 instead of .map? Cheers, Clement From: Appu kumar Sent: Wednesday, March 01, 2017 7:54 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] ANODE anomalous map in pymol Hi, I Already did that in COOT, but PYMOL does not read it in map format.

Re: [ccp4bb] Nitrate versus Carbonate

2016-11-13 Thread Clement Angkawidjaja
the affinity much stronger than in CA’s? Jacob Pearson Keller From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Clement Angkawidjaja Sent: Friday, November 11, 2016 12:11 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Nitrate versus Carbonate Dear JPK What I

Re: [ccp4bb] Nitrate versus Carbonate

2016-11-10 Thread Clement Angkawidjaja
Dear JPK What I know is we do not have much nitrate in the blood unlike carbonate/bicarbonate. Nitrite, a nitrate byproduct can cause problems but it has a different structure and probably does not interfere with bicarbonate binding to relevant proteins. Cheers, Clement From: Keller, Jacob

Re: [ccp4bb] Superpose program in CCP4

2016-10-30 Thread Clement Angkawidjaja
Dear Wenhe, Have you looked at the Additional Log File from Superpose? Cheers, Clement -Original Message- From: WENHE ZHONG Sent: Sunday, October 30, 2016 12:47 AM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Superpose program in CCP4 Dear all, I always use the SUPERPOSE tool in

Re: [ccp4bb] Electron density server

2013-10-25 Thread Clement Angkawidjaja
Dear Rojan, Get the mmCIF, then use CIF2MTZ from CCP4. Cheers, Clement On 10/25/13 3:07 PM, Rojan Shrestha wrote: Hello, Is EDS (electron density server) dead? In the absence of EDS, how can be mtz file directly downloaded? Regards, Rojan

Re: [ccp4bb] The binding between disordered and ordered proteins

2013-10-21 Thread Clement Angkawidjaja
Dear Dee, Some proteins with chaperone-like activity (perhaps your B?) can only bind to partially folded proteins. Probably A folds to a molten globule structure after 1-2 days. You can check by spectroscopic techniques (ANS or Trp fluorescence, CD). Hope that helps. Cheers, Clement On

Re: [ccp4bb] On pKa of Aspartic acid

2012-02-07 Thread Clement Angkawidjaja
Hi Deepak, Assuming that you have done the necessary things to measure the pKr of that particular Asp, I would say that the increase is advantageous for your enzyme. Enzyme catalysis often involves very subtle changes on the ionization state of the active site. But you need to be very careful

Re: [ccp4bb] Two different asymmetric units from two different crystallization conditions

2011-06-08 Thread Clement Angkawidjaja
conc. disrupted the tetrameric assembly and enabled crystallization of the protein as a monomer. Curious to know if there has been any similar precedence before. Cheers, Shiva Clement Angkawidjaja, PhD. G30 Assistant Professor

Re: [ccp4bb] how to remove part of data with bad signal to noise ratio

2011-05-24 Thread Clement Angkawidjaja
Hi Seema, Small addition to the already abundant suggestions, if you have high solvent content or significant portion of non-observable density, you normally get higher R-free. Clement Clement Angkawidjaja, PhD. G30 Assistant Professor

Re: [ccp4bb] how to remove part of data with bad signal to noise ratio

2011-05-24 Thread Clement Angkawidjaja
But you have to do solvent flattening (density modification), which people often (unintentionally?) skip for structures solved with molecular replacement. Please correct me if I am wrong. Clement On May 24, 2011, at 6:01 PM, herman.schreu...@sanofi-aventis.com wrote: This is not my

Re: [ccp4bb] how to remove part of data with bad signal to noise ratio

2011-05-24 Thread Clement Angkawidjaja
and look for extra molecule(s), which may have been overlooked. If these extra molecule(s) are disordered, this will off course lead to high Rfree values. Best, Herman -Original Message- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Clement Angkawidjaja Sent

Re: [ccp4bb] image file extensions

2011-02-09 Thread Clement Angkawidjaja
? Thanks. Andreas -- Andreas F#65533;ster, Research Associate Paul Freemont Xiaodong Zhang Labs Department of Biochemistry, Imperial College London http://www.msf.bio.ic.ac.uk Clement Angkawidjaja, Ph.D Specially appointed assistant professor

Re: [ccp4bb] Question on calculation of RMSD

2010-11-16 Thread Clement Angkawidjaja
-410-955-3655 http://web.mac.com/bosch_lab/ On Nov 14, 2010, at 8:32 PM, Clement Angkawidjaja wrote: DALI server (http://ekhidna.biocenter.helsinki.fi/dali_server/). Choose the pairwise alignment function. It is all automatic and will give you the lowest rmsd. Note, however

Re: [ccp4bb] how to optimize small rod-shaped crystals

2010-11-16 Thread Clement Angkawidjaja
I strongly agree with Eric Larson’s suggestion on trying to see the diffraction of your crystal. The most straightforward solution. Other suggestions may work too, but there are chances they will still give you false positives. If you need bigger crystals, try to slow down the nucleation (use

Re: [ccp4bb] Question on calculation of RMSD

2010-11-14 Thread Clement Angkawidjaja
need to specify the residues you want to use for calculation for the lsq fit function. Regards, Clement Angkawidjaja, PhD Specially Appointed CMP Assistant Professor Graduate School of Engineering Osaka University 2-1 Yamadaoka GSE Commoon East 8F Suita-shi, Osaka 565-0871, Japan Tel/Fax +81-6