[ccp4bb] PhD position available

2012-09-12 Thread Tales Rocha
http://www.mpibpc.mpg.de/9150561/20-12 Ph. D. Position Job offer from July 06, 2012 The Research Groups “Nucleic Acid Chemistry” (Dr. Claudia Höbartner) and “Macromolecular crystallography” (Dr. Vladimir Pena) at the Max-Planck-Institute for Biophysical Chemistry invite applications for a *Ph.D

[ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Jacob Keller
Dear List, since this probably comes up a lot in manipulation of pdb/reflection files and so on, I was curious what people thought would be the best language for the following: I have some huge (100s MB) tables of tab-delimited data on which I would like to do some math (averaging, sigmas, simple

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Eric Williams
Try R. :) http://www.r-project.org/ Eric On Wed, Sep 12, 2012 at 10:32 AM, Jacob Keller < j-kell...@fsm.northwestern.edu> wrote: > Dear List, > > since this probably comes up a lot in manipulation of pdb/reflection files > and so on, I was curious what people thought would be the best language

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread George M. Sheldrick
I always use FORTRAN for such tasks, especially if speed is important. George On 09/12/2012 04:32 PM, Jacob Keller wrote: > Dear List, > > since this probably comes up a lot in manipulation of pdb/reflection > files and so on, I was curious what people thought would be the best > language for th

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread DUMAS Philippe (UDS)
Le Mercredi 12 Septembre 2012 16:40 CEST, "George M. Sheldrick" a écrit: May I add a little personal joke to the serious remark by George. This remembers me a discussion I had with Jorge Navaza, let's say 15 years ago, about the programming language of the future. (To a good approximation, 15

Re: [ccp4bb] the lysozyme of membrane proteins?

2012-09-12 Thread R. M. Garavito
Ho, A second the vote for OmpF, but many porins could do. Although it is a little harder to purify from native membranes, OmpF has the advantage that it can be crystallized in about 1-2 hours from a simple detergent solution with different PEGs AND (!!!) it is as stable as a rock (you can drop

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Pete Meyer
One thing to keep in mind is that there's usually a trade-off between setup (writing and testing) and execution time. For one-off data processing, I'd focus on implementation speed rather than execution speed (in other words, FORTRAN might not be ideal unless you're already fluent with it).

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Nat Echols
On Wed, Sep 12, 2012 at 7:32 AM, Jacob Keller wrote: > since this probably comes up a lot in manipulation of pdb/reflection files > and so on, I was curious what people thought would be the best language for > the following: I have some huge (100s MB) tables of tab-delimited data on > which I woul

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Carter, Charlie
A similar remark was made to me by David Blow, while he was on sabbatical at UNC in the 1980s, working with the UNC Computer Science Department and in a moment of intense frustration with the overpowering ignorance of fortran and the enthusiasm for Unix exhibited by that department. Charlie On

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Quentin Delettre
I agree with Pete. Moreover, Python doesn't have built-in statistic functions but adding package (numpy and scipy in this case) is very simple. Quentin Le 12/09/2012 17:11, Pete Meyer a écrit : One thing to keep in mind is that there's usually a trade-off between setup (writing and testing) an

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Anna Gardberg
Hi Jacob, As the preceding discussion has illustrated, there are obviously a number of options, nearly all of which will work well for what you describe. As Pete Meyer suggested above, the best language may be the one you already know (I also echo his suggestion to test your code on a small subset

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Ethan Merritt
On Wednesday, September 12, 2012 07:32:54 am Jacob Keller wrote: > Dear List, > > since this probably comes up a lot in manipulation of pdb/reflection files > and so on, I was curious what people thought would be the best language for > the following: I have some huge (100s MB) tables of tab-delim

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Jacob Keller
> > For the specific purpose you list - > input from tab-delimited data > output to simple statisitical summaries and (I assume) plots > - it sounds like gnuplot could do the job nicely. > I wasn't aware that gnuplot can do calculations--can it? I was probably going to use it somewhere as a plotti

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Edwin Pozharski
All you need is scipy library to get those pesky statistic functions :) On 09/12/2012 11:11 AM, Pete Meyer wrote: Python's relatively easy to learn, and more flexible than octave/R; but it doesn't have the built-in statistic functions that octave and R do.

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Sabuj Pattanayek
> Why are you dis-ing python? Seems everybody loves it... Depends on if you like the object model, some don't. In the end it really boils down to what you're used to and what you've learned to use.

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Soisson, Stephen M
Now is the time when I start waxing nostalgic about the "old days" when there used to be entire threads on this bulletin board about Fortran format statement syntax for parsing various files.and I read them with great interest How did I get to be such a geezer? -Original Message- F

[ccp4bb] Ligand geometry obs. vs. ideal

2012-09-12 Thread Yuri Pompeu
Hi everyone, I am trying to show that a ligand underwent catalysis during a soaking experiment. One of the things I would like to show is the geometry of the ligand, bond angles/lengths, dihedrals, etc... One of my models has a hi-res of 1.18A and the ligand density is really clear and complete.

Re: [ccp4bb] Fitting of a trigonal bipyrimidal phosphorus

2012-09-12 Thread Sudipta Bhattacharyya
Dear all, Thanks for your cooperation. Regards, Sudipta. Sudipta Bhattacharyya, Senior Research Fellow, Department of Biotechnology, Indian Institute of Technology Kharagpur, India. > >

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread James Stroud
On Sep 12, 2012, at 9:11 AM, Pete Meyer wrote: > That said, I'd take a look at python, octave or R. Python's relatively easy > to learn, and more flexible than octave/R; but it doesn't have the built-in > statistic functions that octave and R do. import scipy Now it does!

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread George Sheldrick
It is the lack of compatibility between different versions mentioned by Ethan that really put me off learning PYTHON. In contrast, the FORTRAN-66 program SHELX76 still compiles and runs correctly with any modern FORTRAN compiler. The only significant 'new' features that I now use are dynamic ar

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread James Stroud
Python sorting 1 records of 1 floats for each record, finding the max, min, and mean of entire 100,000,000 32 bit float array (400 MB) on a 6 year old white imac. *11.6 seconds. *This doesn't include the time to generate the 400 MB of random (normal) data. Try it on your own comp

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Pavel Afonine
Hi, Python, of course (if you know some basic math). Otherwise, Python and a good math text book -:) Pavel On Wed, Sep 12, 2012 at 7:32 AM, Jacob Keller < j-kell...@fsm.northwestern.edu> wrote: > Dear List, > > since this probably comes up a lot in manipulation of pdb/reflection files > and so

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread James Stroud
On Sep 12, 2012, at 1:00 PM, George Sheldrick wrote: > It is the lack of compatibility between different versions mentioned by Ethan > that really put me off learning PYTHON. Python is backwards compatible. I have reams of code I wrote in python 2.3 that still works in 2.7 without modificatio

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Edwin Pozharski
Ethan, I think majority of your complaints about python result from its very purpose - to be readable/portable for the sake of facilitating rapid implementation. There are many other languages that provide tools to accomplish what Jacob wants to do (well, I would stay away from P''), but pyt

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Nat Echols
On Wed, Sep 12, 2012 at 12:49 PM, James Stroud wrote: > Also, python (aka python 2) and python 3000 (aka python 3) are considered > two different languages. It's not reasonable to consider them one language > and then complain that they are incompatible. Python 3 was created as a new > language (a

Re: [ccp4bb] Ligand geometry obs. vs. ideal

2012-09-12 Thread Edwin Pozharski
You can do unrestrained refinement in refmac, at your resolution it may be OK. If you want to keep protein restrained, you can either use harmonic restraints or come up with a special cif-file for your ligand with large esd targets. There is no direct way to tell refmac to exclude specific r

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread George Reeke
Colleagues: Another country is heard from: Since no one has mentioned MATLAB, let me mention it. --Can easily do any math from 2+2 to matrix SVD etc. --Statistics toolbox does most of what anyone would want. --Lots of easy quick graphics that can be prettied up if needed. --If you know FORTRAN, yo

[ccp4bb] Aimless and Pointless

2012-09-12 Thread Cosmo Z Buffalo
Hi all, I am currently trying to perform a quickscale in iMosflm 7.0.9 after I integrate in an R 32 space group. Unfortunately, both Pointless and Aimless are both giving me a best solution space group of P 43 3 2. After analyzing the statistics, this cannot be correct. Other programs such a

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread Ho Leung Ng
I encourage trainees to learn a programming language that they will help their careers beyond their short time in my lab. Many or most of them will not continue in structural biology or even science. For the moment, I am pushing python even though I am minimally literate in it myself. They sho

Re: [ccp4bb] Aimless and Pointless

2012-09-12 Thread Ed Pozharski
On 09/12/2012 06:41 PM, Cosmo Z Buffalo wrote: is it possible to force Aimless and Pointless to generate statistics in a space group other than the one it predicts? yes, but it's pointless to force Pointless And if so, how would I do this? I assume you mean doing it from imosflm. If so, go

Re: [ccp4bb] Aimless and Pointless

2012-09-12 Thread Ethan Merritt
On Wednesday, 12 September 2012, Cosmo Z Buffalo wrote: > Hi all, > > I am currently trying to perform a quickscale in iMosflm 7.0.9 after I > integrate in an R 32 space group. Unfortunately, both Pointless and Aimless > are both giving me a best solution space group of P 43 3 2. After analyzi

Re: [ccp4bb] Off-topic: Best Scripting Language

2012-09-12 Thread William G. Scott
I'd just use a decent shell scripting language (like zsh) in conjunction with a unix tool like awk. But the gnuplot option sounds ideal. Bill William G. Scott Professor Department of Chemistry and Biochemistry and The Center for the Molecular Biology of RNA 228 Sinsheimer Laboratories Universi

Re: [ccp4bb] Ligand geometry obs. vs. ideal

2012-09-12 Thread Robert Nicholls
In case it helps… After you've done unrestrained refinement, you can use prosmart to generate external self-restraints to the current conformation (using the -self_restrain keyword). This is flexible - you can specify residue ranges, and it works for protein, ligand, DNA/RNA, waters, etc. These