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Rigid body perturbation while docking

Category: 
Docking

ERROR: NAN occurred in H-bonding calculations!
ERROR:: Exit from: core/scoring/hbonds/hbonds_geom.cc line: 1122
Traceback (most recent call last):
  File "docking.py", line 118, in <module>
    jobs, job_output)
  File "docking.py", line 79, in sample_docking
    perturb.apply(test_pose)    
RuntimeError: unidentifiable C++ exception

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Question on eval_atom_derivative function.

Category: 
Scoring

Hello again,

So I am working on incorporating pseudocontact shifts into the Relax protocol and I need to implement the derivatives for minimization. As I understand it, to do this I need to implement the eval_atom_derivative function. However, I do not understand the vector parameters F1 and F2. Could you explain them to me? Are they just the vector along the gradient for the atom?

Thank you in advance.

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rama vs p_aa_pp vs ref score terms

Category: 
Scoring

Do these three terms in Score12.wts_patch and after have significant overlap?

How would one go ahead to explain a delta_delta_G upon a mutation that has contributon coming from these terms? In one protein case, three mutations T61N, H135Y and H257P, showed significant gain in half-life. The score terms show contribution from Rama, p_aa_pp and ref. 

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ClassicRelax: how to block the backbone

Category: 
PyRosetta

hello! isnt the following command meant to keep the backbone fixed? cos i obtain a model with a RMSD of about 1A from the initial model.

movemap=MoveMap()    
movemap.set_bb(False)
relax=ClassicRelax()
relax.set_scorefxn(scorefxn_tala)
relax.set_movemap(movemap)
relax.apply(sample_pose)

Thanks :)

 

 

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Fixing part of a ligand in dock-design

Category: 
Docking
Design

Hi,

 

I am using a dock-design protocol to design a binding pocket to bind a ligand. I know where parts of the ligand should bind (orinetations and the position in protein) but the other parts can be flexible. Right now after the dock and design protocol, most of my outcomes change the whole position of ligand and don't keep that part fixed. Is there a way to tell the program to keep parts of the ligand fixed? or a way to generate conformers for only parts of the ligand? 

 

Thanks.

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cluster.linuxgccrelease Killed error

Category: 
Structure prediction

Dear Rosetta's users,

I'd run my score analysis employing the score options below [1]. But after some minutes the programs gave me this error message: killed. As I'm interested to cluster my 50 000 structures generated by Rosetta3.5, I wonder to know what I'm doing wrong with this cluster analysis.

Kind regards.

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RASREC - finding lowest energy structure

Category: 
Scoring

Hi Rosetta community,

After finally getting the RASREC run to successfully generate full 6 stages, now I'm at the point where I want to score the pdbs to find the lowest energy structures which suppose to be the closest to the native structure. But in this website: https://www.rosettacommons.org/demos/latest/protocol_capture/rasrec_evolutionary_restraints/README

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RosettaScripts - FastRelax loops

Category: 
Loop Modeling

Hi all,

I am using RosettaScripts for some loop modelling and would like to apply the FastRelax protocol to a loop region in my structure without the moves propagating down the chain.

I know that it is possible to set up a MoveMap so that only some degrees of freedom are turned on e.g.

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