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Structure prediction using true distance and angle constraint

Category: 
Structure prediction

Hello,

I wonder if naive protein structure can be predicted by using true distance and angle constraints.
If we can do that, how do we choose rosetta applications and parameters?

Post Situation: 

antibody protocol fails

Category: 
Structure prediction

Hello,

I'm using antibody protocl to graft some models but it fails with the following error:

File: src/protocols/antibody/grafting/chothia_numberer.cc:152
ERROR: Unxpected length of light-fr3 [length=31], length expected to be: [32, 33, 34]!

Do you have any comments on this? I have three sequences (three different antibodies with light and heavy chains) and it works on one of them but the same error on the two others.

Thanks a lot in advance,

Best

Post Situation: 

Ab initio structure prediction for long amino acid sequence

Category: 
Structure prediction

Hi

I'm a postgraduate student, interested in protein structure prediction.

I noticed that the document said:

  • Abinitio: max 150 amino acids are cosidered possible

So, I want to know, how to use rosetta to predict number of protein of  amino acids more than 150 (e.g. 500)?

Post Situation: 

Resfile Error

Category: 
PyRosetta

Hello everyone,

 

I am trying to perform RosettaDesign, and I have a script that uses pyrosetta.rosetta.core.pack.task.parse_resfile()

In the past this worked just fine, but now with the new update it seems it doesn't work, I get this error:

RuntimeError:
File: /scratch/benchmark/W.glass/rosetta.Glass/_commits_$ main/source/src/core/pack/task/ResfileReader.cc:1582 [ ERROR ] UtilityExitException ERROR:

I am not sure how to fix this issue, following is two codes that break:

Post Situation: 

set_torsion_angle error

Category: 
Small Molecules

Hi all,

I created a customized ligand, and we want to sample different rotamers around certein bonds by changing the torsion angles. And below is what we have done and we ran into an issue:

atom1 = AtomID(13,1)

atom2 = AtomID(14,1)

atom3 = AtomID(15,1)

atom4 = AtomID(16,1)

old_torsion_angle = pyrosetta.rosetta.core.conformation.Conformation().torsion_angle(atom1, atom2, atom3, atom4)

print (old_torsion_angle)

Post Situation: 

Pyrosetta: restrict repack (and minimization) to specific region

Category: 
PyRosetta

Hi everyone,

I am trying to restrict repacking around a residue . I have written a script with PreventRepacking() and RestrictToRepacking but I am still confised about the result. Here is the code I am using:

Post Situation: 

kcenters_clustering_of_fragments

Category: 
Fragment Generation

Hello Rosetta community,

I'm having trouble finding the fragment generation application "kcenters_clustering_of_fragments." The application is mentioned as publically available in the methods section of D.A. Silva et al (2019). De novo design of potent and selective mimics of IL-2 and IL-15. Nature. Link: https://www.nature.com/articles/s41586-018-0830-7?WT.feed_name=subjects_computational-biology-and-bioinformatics

Post Situation: 

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