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Structure prediction

Folppy Tail and Constraints

Category: 
Structure prediction

Hi,

I am trying to model the C-terminal tail for a membrane protein which is not resolved in the crystal structure and run MD afterwards. It's 40 residues long, but disordered. I am choosing FloppyTail protocol. Since the protein is sitting in a membrane, Z component of all residues' coordinates should be more than a specific value, such that tail be out of the membrane and fall into the cytoplasmic region completely.

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RosettaCM -weights, fragments and relax

Category: 
Structure prediction

Hi all,

I’m trying to do a homology model using multiple templates taking as reference the RosettaCM tutorial (https://www.rosettacommons.org/demos/latest/tutorials/rosetta_cm/rosetta_cm_tutorial).

 I have some doubts regarding the use of some weights for each of the stages.

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Including waters in RosettaCM

Category: 
Structure prediction

I want to include several binding site waters in my homology model, since they seem to have an important impact on the configuration of the cofactor (GTP & Mg2+).  I.e. when I do the homology model without the waters, the position of the cofactor is significantly different from the crystal structure template, despite the surrounding residues being completely conserved. The cofactor occupies a space that is normally occupied by several structurally conserved water molecules. However, when I try to include the waters I get the error message:

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New CSRosetta toolbox

Category: 
Structure prediction

Hi,

I am working for one of the labs, I have been making changes to CSRosetta toolbox like making it compatible with latest versions of Rosetta and would like our lab dir be added into the commons repo. I did not know who to contact. I can give more details about the lab, changes and so on.

Thanks.

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Is there a way to calculate chi1 and chi1+chi differences between two structures?

Category: 
Structure prediction

Hi,

I looked up some of the options for various protocols to see if there is a way to calculate chi1 and chi1+chi2 measures for two structures. Essentially I want to compare the xray with that of the model predicted by Rosetta.

Thanks.

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Threading a sequence onto a template with ligands/metal ions included

Category: 
Structure prediction

I want to include the GDP/GTP and magnesium ions in the threading process for a tubulin homology model I am trying to make (since I do believe this is the ideal way to start formulating the homology model). For some reason, however, only the GTP is included in the output pdb. I get an error message that says: 

Error: potential mismatch between sequence from alignment  and sequence from PDB!

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Problem with running turtorial of rna denovo

Category: 
Structure prediction

Hi,

I am a new user of rosetta and tried to run tutorials with rna denovo structure prediction. However, when I ran the tutorial, the program said it could not find the rna folder and the information is kept in coarse_rna fold. So I have to create a rna fold that link to coarse_rna fold. However, in that folder, it doesn't have residue_types.txt which is hightlighted below. Could you help to solve my problem? Thank you very much.

My

 

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Problems incorporating nucleotides (GTP/GDP) into the modeling process for RosettaCM

Category: 
Structure prediction

Dear Rosetta Support,

I am trying to create a homology model of the tubulin protein heterodimer. I want to include the GTP/magnesium and GDP/magnesium (which are in the crystal structure template I am using) in the modelling process, but I am having problems. I keep getting an error that says either the scoring function "is not setup for nonideal/cartesian scoring", or that my residue param file, e.g. GTP.fa.tors "does not have valid atom records" (or something along those lines).

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