Re: [ccp4bb] Homology modeling

2020-08-15 Thread Randy Read
Dear Amit, I don’t think that PROCHECK is the right tool for assessing the quality of a comparative model. It was revolutionary in its time, but the criteria it looks at can mostly be satisfied by energy minimisation even of an incorrect model, especially if you don’t have to simultaneously

[ccp4bb] Homology modeling

2020-08-14 Thread amit gaur
Hi All, I am trying to generate a model using comparative modeling. Can anybody suggest the quality of the model based on procheck summary. +--<<< P R O C H E C K S U M M A R Y >>>--+ |

Re: [ccp4bb] homology modeling of dimeric proteins

2013-03-22 Thread Roberto Mosca
Have you tried with Interactome3D? http://interactome3d.irbbarcelona.org Best, Roberto

[ccp4bb] homology modeling of dimeric proteins

2013-03-21 Thread Sudipta Bhattacharyya
Dear All, Could annyone please suggest me any program or server that can build homology based models of dimeric/oligomeric proteins? Previously I have used many software/servers which can build the monomer of my target proteins but not the dimers. Self docking of homology based monomer is not

Re: [ccp4bb] homology modeling of dimeric proteins

2013-03-21 Thread Joel Tyndall
: [ccp4bb] homology modeling of dimeric proteins Dear All, Could annyone please suggest me any program or server that can build homology based models of dimeric/oligomeric proteins? Previously I have used many software/servers which can build the monomer of my target proteins but not the dimers

Re: [ccp4bb] homology modeling

2010-08-26 Thread Christian Rausch
Dear Paul! you might want to have a look at http://salilab.org/modeller/ . The stand alone version is free for academia. Christian ___ Dr. Christian Rausch Lehrstuhl für Biologische Chemie Technische Universität München, Germany On Thu, Aug 26, 2010 at 12:03 AM, Paul Kraft haresea...@yahoo.com

[ccp4bb] homology modeling

2010-08-25 Thread Paul Kraft
Hello, I've been using an the on-line homology modeling program Jigsaw-3D, and would like to run it on my own Linux box, but it requires CHARM, which I am unvailable to get because I am currently looking for a faculty position... does anyone know of an open source energy minimization program

Re: [ccp4bb] homology modeling

2009-05-06 Thread Sue Roberts
A metaserver such as bioinfobank is helpful if your sequence is not super-secret, especially if one is not an experienced modeller. http://meta.bioinfo.pl/submit_wizard.pl It submits your sequence to a range of sequence-based and threading- based servers. Models (c-alpha, built with

Re: [ccp4bb] homology modeling

2009-05-05 Thread Chen, Yu Wai
I would recommend Modeller http://www.salilab.org/modeller/ Wai Suppose I have two proteins A and B, they are structurally homologous, however the sequence identity is only about 20%. A has crystal structure available, so if I want to model protein B, what's the best way to do it? I don't

Re: [ccp4bb] homology modeling

2009-05-05 Thread Francisco J. Enguita
Hi Rui Very easy to use is EsyPred3D : http://www.fundp.ac.be/sciences/biologie/urbm/bioinfo/esypred/ Also good performance server is 3d-JIGSAW : http://bmm.cancerresearchuk.org/~3djigsaw/ Hope it helps Cheers Francisco Hi, All Suppose I have two proteins A and B, they are structurally

Re: [ccp4bb] homology modeling

2009-05-05 Thread Anastassis Perrakis
Modeller is indeed an excellent program (so are some others) but, without being an expert, I was told some time ago and I am still under the impression, that homology modeling with 20% identity (and many insertions and deletions as you point out) is a dark art. Being able to suggest the

Re: [ccp4bb] homology modeling

2009-05-05 Thread Peter Schmidtke
Try Phyre (http://www.sbg.bio.ic.ac.uk/phyre/), it worked rather well for some of my projects with very low sequence similarity. Peter On Tue, 5 May 2009 12:08:04 +0300, Anastassis Perrakis a.perra...@nki.nl wrote: Modeller is indeed an excellent program (so are some others) but, without

Re: [ccp4bb] homology modeling

2009-05-05 Thread Rotem Sertchook
Hi, With 20% identity the main problem is the sequence alignment. Usually programs that based only sequence data are not enough in such cases and you need to add additional terms to get the correct structure (e.g. threading). You can see list of such programs in our site

Re: [ccp4bb] homology modeling

2009-05-05 Thread Donnie Berkholz
On 12:08 Tue 05 May , Anastassis Perrakis wrote: Modeller is indeed an excellent program (so are some others) but, without being an expert, I was told some time ago and I am still under the impression, that homology modeling with 20% identity (and many insertions and deletions as you

[ccp4bb] homology modeling

2009-05-04 Thread rui
Hi, All Suppose I have two proteins A and B, they are structurally homologous, however the sequence identity is only about 20%. A has crystal structure available, so if I want to model protein B, what's the best way to do it? I don't think I can just thread the sequence of B to A structure because

[ccp4bb] homology modeling----good bond lengths, bad angles

2007-02-28 Thread anagha gupta
Hi CCP4 community! I have constructed a homology model of a deletion variant of a protein whose structure has already been solved. These deletions are 3-4 amino acid in length and are in a loop that connects two helices. The model structures look good with respect to bond lengths in the