I am building on OS 10.12 Sierra.
thanks
sam
Search found 188 matches
- Wed May 31, 2017 3:02 pm
- Forum: Simbody: SimTK multibody dynamics API
- Topic: Can't figure out: binding dereferenced null pointer to reference has undefined behavior
- Replies: 5
- Views: 531
- Wed May 31, 2017 3:01 pm
- Forum: Simbody: SimTK multibody dynamics API
- Topic: Can't figure out: binding dereferenced null pointer to reference has undefined behavior
- Replies: 5
- Views: 531
Can't figure out: binding dereferenced null pointer to reference has undefined behavior
Guys, I am getting a puzzling warning when building the latest release of simbody. Actually it only occurs when building examples, but since I am having problems downstream I think this needs to be addressed. The warning is below. Any advice? Thanks Sam In file included from /Users/Sam/github/simbod...
- Thu Apr 27, 2017 12:42 am
- Forum: MMB (formerly RNABuilder)
- Topic: MD run explodes
- Replies: 5
- Views: 823
Re: MD run explodes
Sorry I seem to be missing these messages. 1. You can expect unphysical results if parts of your molecule are flexible and physics is not turned on, or is not turned on for enough of the nearby residues. For homology modeling you have to be very careful to keep the MD forces turned OFF for the templ...
- Thu Jan 12, 2017 1:52 am
- Forum: MMB (formerly RNABuilder)
- Topic: MD run explodes
- Replies: 5
- Views: 823
Re: MD run explodes
Hi Xiong An, I made a few modifications to your script. Assuming you are using the latest build, it will be easier to work this way. First, you can just issue "mobilizer Rigid" to rigidify everything, and then set 51-69 back to being flexible. You can use nucleicAcidDuplex to make base pairs in a do...
- Tue Jan 10, 2017 5:46 am
- Forum: MMB (formerly RNABuilder)
- Topic: MD run explodes
- Replies: 5
- Views: 823
Re: MD run explodes
I would use "Default" rather than "Free". Free confers 6 degrees of freedom (DOFs) for each bond. Default makes most bonds either Torsion (1 DOF) or Rigid (0 DOF). Rigid is for groups like phenols, or the peptide bond, that MMB prefers to treat as though they had no internal DOFs. Anyway, Free costs...
- Thu Dec 29, 2016 9:07 am
- Forum: MMB (formerly RNABuilder)
- Topic: Naive Question : What is RNA threading and morphing
- Replies: 2
- Views: 392
Re: Naive Question : What is RNA threading and morphing
Oh sorry by threading I meant homology modeling. Where did you see the term "threading"? MMB was the first homology modeling method for RNA. You can read about it here: http://psb.stanford.edu/psb-online/proceedings/psb10/flores.pdf Morphing is just finding a trajectory connecting two known structur...
- Sat Oct 15, 2016 3:46 am
- Forum: Simbody: SimTK multibody dynamics API
- Topic: incompatibility between Constraint::Weld and LocalEnergyMinimizer::minimizeEnergy ?
- Replies: 3
- Views: 380
Re: incompatibility between Constraint::Weld and LocalEnergyMinimizer::minimizeEnergy ?
In this case the complexes AB and CD are highly similar. So constraining A to B should give almost the same result as not constraining -- the differences should be on the order of tenths of Ångströms (there will be other situations in which this is not the case, hence the need for constraints). Howe...
- Fri Oct 14, 2016 2:22 am
- Forum: Simbody: SimTK multibody dynamics API
- Topic: incompatibility between Constraint::Weld and LocalEnergyMinimizer::minimizeEnergy ?
- Replies: 3
- Views: 380
incompatibility between Constraint::Weld and LocalEnergyMinimizer::minimizeEnergy ?
Guys, Is there an incompatibility between Constraint::Weld and LocalEnergyMinimizer::minimizeEnergy ? I create one complex comprising proteins A and B, which are constrained to each other (I want them to stay together, moving as a single rigid body) and then apply springs to pull them onto another c...
- Thu Sep 22, 2016 10:31 am
- Forum: MMB (formerly RNABuilder)
- Topic: My first few runs to determine microRNA structure
- Replies: 3
- Views: 536
Re: My first few runs to determine microRNA structure
Hi Kamlesh, I am not sure I would recommend this approach. You can eventually get this to fold but it will be prone to kinetic traps. We got out of those using the Scrubber as described in the RNA and TCBB paper, but it took some patience. At the time it made sense because there was plenty of low-gr...
- Thu Sep 22, 2016 9:58 am
- Forum: MMB (formerly RNABuilder)
- Topic: Target RNA structure automatically modified before threading
- Replies: 3
- Views: 560
Re: Target RNA structure automatically modified before threading
Hi Crystal, I just realized I didn't answer you earlier. Bug me if that happens! Before I tell you the answer, I intended for MMB to be as easy to use, and as flexible with respect to the structural and other data it takes, as possible. I also intended for MMB not to think too much for you, as guess...