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DDG_monomer ΔΔG question

Category: 
Design

I read the  paper Role of conformational sampling in computing mutation-induced changes in protein structure and stability (Kellogg etal.2011),

and  set the flags as row 3 , 13 and 16, and some questions comfuses me.

The paper shows  the predicted ΔΔG of row 3 is the mean of the mutant energies subtracted by the mean of the wildtype energies.

while that of row 13 and row 16 are defined as the difference between the mutant and wildtype mean of the lowest 3 energy models out of 50.

Post Situation: 

FARFAR and RNA_Tools: problem executing the command helix_preassemble_setup.py

Category: 
Compilation

Dears,

After installing Rosetta 3.9 in a cluster and trying to run the simple command:

helix_preassemble_setup.py -fasta NFKB_1OOA_RNAStructure_2D.fasta -secstruct NFKB_1OOA_RNAStructure.secstruct

we get the following error:

Post Situation: 

FARFAR and RNA_Tools: problem executing the command helix_preassemble_setup.py

Category: 
Compilation

Dears,

After installing Rosetta 3.9 in a cluster and trying to run the simple command:

helix_preassemble_setup.py -fasta NFKB_1OOA_RNAStructure_2D.fasta -secstruct NFKB_1OOA_RNAStructure.secstruct

we get the following error:

Post Situation: 

select_best_unique_ligand_poses - Ligand docking

Category: 
Docking

Hi There,

I performed the ligand docking protocol with 250K sampling. I would like to use the 'select_best_unique_ligand_poses' application to find the unique binding modes. However, the run gets crashed with an MPI error: killed with signal 9.  I thought this is something related to the memory, so I tried using nodes with higher memory, such as 125GB and 500GB, but still, I get the same error. 

Can somebody suggest me a workaround for this?

Thanks,

Subha

Post Situation: 

Refinement of a PDB structure containing multiple models

Category: 
Structure prediction

I'm trying to refine a multimer of alpha-beta tubulin structures. I fitted the structures individually in Chimera and saved it as a single file containing all my alpha-beta tubulin monomers. The structure saved this way contain the alternating A and B chains of the different tubulin units (ABABAB).  The refined structures, however, has only two chains A then followed by B. The A chain is the alpha-tubulin chains of all the tubulin units combined, and the B chain is also all the B chains combined (AB, where A = AAAA, and B= BBB).

Post Situation: 

FARFAR and RNA_Tools: problem executing the command helix_preassemble_setup.py

Category: 
Nucleic Acids

Dears,

After installing Rosetta 3.9 in a cluster and trying to run the simple command:

helix_preassemble_setup.py -fasta NFKB_1OOA_RNAStructure_2D.fasta -secstruct NFKB_1OOA_RNAStructure.secstruct

we get the following error:

Post Situation: 

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