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Can I believe the antibody design result?

Category: 
Design

I am trying to do antibody design with the  RosettaAntibodyDesign, but some of my colleagues told me that they fell to obtain successful designers with the  RosettaAntibodyDesign (RAbD). They ran the RosettaAntibodyDesign on the crystal structure of an ab-ag complex with a dG_seperate of about -20 REU, and got some designers with dG_seperate of about -40 REU. However, they did experiments including ELISA and SPR and found that these antibody designers did not bind to the antigen at all!

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Constraints residues in different chain in protein-protein docking

Category: 
Docking

Hello,

 

I want to dock two proteins. I have some constraints between residues of different chain (here chain A and B).

For eaxmple:

For residues number 15 of chain A, and residue number 271 of chain B, I have the following information:

The minimum distance between residues is 0, and the maximum distance is 6.

 

How can I add constrain for something like this case (I mean when residues are in different chain)? How can I specify that residues are in diffrent chain?

 

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polymer docking using rosetta scripts

Category: 
Docking

 

   Hi  My name is  Jong hui Hong

   I'm trying to dock the ligand which has 5 chemical linked via covalent bond( ACE-UB4-DPP-GLY-GVE) using Rosetta-Scripts

   I changed ligand residue name into PRD and made conformer using obabel , made paramter file using molfile_to_params.py without any problem

   but when I run docking using  rosetta_scripts.linuxgccrelease

  I got the following error

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Extending Pyrosetta toturials for docking by adding constraints

Category: 
Docking

Hello,

I followed pyrosetta tutorials for docking.  I did something like the following:

scorefxn_low = create_score_function("interchain_cen")
jd = PyJobDistributor("output", 100, scorefxn_low)
while not jd.job_complete:
    cen_pose.assign(starting_cen_pose)
    dock_lowres.apply(cen_pose)
    jd.output_decoy(cen_pose)

 Then, I selected the candiddate with lowest score.

 

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Error: in membrane docking : Cannot split pose by membrane jump! Quitting...

Category: 
Docking

I'm trying to run the demo files of RosettaMP and it fails in the last docking step. We were able to prepack the files normally , but the last command throws error:

 

core.chemical.GlobalResidueTypeSet: Finished initializing centroid residue type set.  Created 62 residue types

core.chemical.GlobalResidueTypeSet: Total time to initialize 0.016093 seconds.

protocols.docking.DockingProtocol: FOLD_TREE  EDGE 81 1 1  EDGE 1 40 -1  EDGE 1 61 2  EDGE 61 80 -1  EDGE 61 41 -1

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how do i unding properly?

Category: 
Docking

Hello guys,

 

i am new to pyrosetta and I am having some issues with making sure I am undocking properly. 

I have a pdb file with a receptor with a receptor, 2 metal ions, a cofactor and then a substrate. It is arranged in a pdb file, with the receptor + metals beeing chain A, cofactor B, ligand X.

 

how do i unbind only the X chain properly? The tutorial is set up for a different problem, and i am struggling to valdidate the results. It also said that you could use 

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Prevention of the negatively charged Nitrogen protonation by coupled_moves

Category: 
Docking
Small Molecules
Chemically Modified Residues

Dear sir and madam,

I have met with the unfavourable addition of 2 Hydrogen atoms onto sulfonamide Nitrogen instead one (NH2 instead of NH) on a ligand during the coupled_moves docking application runs. It is perfomed by the following command:

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Build Error on macOS Big Sur

Category: 
Compilation

Hi,

I am trying to build rosetta 3.12 on macOS Big Sur but I receive the following error:

-----------------------------------------------------------------------------------------------------------------------

In file included from src/apps/public/AbinitioRelax.cc:20:

In file included from src/basic/options/option.hh:17:

In file included from src/utility/options/OptionCollection.hh:21:

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helical bundle predict

Category: 
Compilation
Structure prediction

Hi everyone,

I'm interested in using the helical_bundle_predict method. In this link (https://www.rosettacommons.org/docs/latest/structure_prediction/helical-bundle-predict) it is described as an application but I cannot understand how to make the system install it. It may have something to do with the fact that it is a pilot application, but still it is not clear to me which files I need to modify in order to install it with scons. 

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