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Small Molecules

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)

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Relax with multiple small molecules

Category: 
Small Molecules

Fast relax works fine with two ligands when the .params file are provided in the format.

-extra_res_fa LG1.params LG2.params

But when the same protocol is used with a few added flags such as

-relax:respect_resfile
-packing:resfile resfile

it fails with the following message

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Incorporating Rosetta Binary and Database to a Web Server Pipeline

Category: 
Design
Scoring
Enzyme Design
Constraints
Small Molecules
ROSIE

Our lab is planning to design a web server, and we would like to incorporate one of the binaries and the corresponding Rosetta database in our pipeline. 

We would like to incorporate Rosetta's supercharge binary (https://www.rosettacommons.org/docs/latest/application_documentation/design/supercharge) along with the corresponding common database in our web server as a component of our web server pipeline.

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Reading chloride anions

Category: 
Small Molecules

Hi everyone, 

I am trying to read a pdb file that  has a chloride anion important for its structure. The error is that it is not recognized by rosetta, as sometimes happily happen with other small ions. Looking through the database file I found a params file for a chloride ion model, located at: $ROSETTA_HOME/main/database/chemical/residue_type_sets/fa_standard/residue_types/anions/CL.params. The file reads:

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Do Rosetta support hydroxide(OH-) and oxide(O2-) params?

Category: 
Enzyme Design
Small Molecules
Chemically Modified Residues

Hello All,

For one of my project I need to hydroxide (OH-) and oxide (O2-). EnzDes is failing to take it. 

Error: caught exceptionFile: src/numeric/xyzVector.hh:665Cannot normalize xyzVector of length() zero

Oxide Params
 

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The question about ligand score function

Category: 
Small Molecules

Hello!

These are many .wts file in database\scoring\weights.
I  don't clearly know which weight is used in which occasions,
and  just use score function according to papers.


I  read the webpage(https://www.rosettacommons.org/demos/latest/tutorials/scoring/scoring)
 and its recommend references.

Post Situation: 

splitfile.py

Category: 
Docking
Small Molecules

I'm looking at the methods of the following paper:

Elife. 2017 Sep 19;6. pii: e28909. doi: 10.7554/eLife.28909.
Computational design of environmental sensors for the potent opioid fentanyl.
Bick MJ#1, Greisen PJ#1, Morey KJ2, Antunes MS2, La D1, Sankaran B3, Reymond L4,5, Johnsson K4,5, Medford JI2, Baker D1,6.

and trying to follow along (to eventually adapt it for my own work).

I've hit a snag at one of the commands:

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Molecular oxygen

Category: 
Small Molecules

I am planning on docking a ligand in a cavity with a heme and a constrained oxygen. Whereas I can make params of ligands and non-canonical residues, I cannot for molecular oxygen (OXY). It is not in the database either. Molfile_to_params.py gives the following 

Post Situation: 

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