Thank you Neilfws! If you know, what about trying to find a peptide with determined structures in NMR for both aqueous and less-polar solutions? In the link I provided in my comment to my original post above, does that peptide have two structures, since it seems to report so?
Obtain List Of Small Peptides With Nmr Structure In Tfe And H20
Hello stars,
I am simply trying to obtain a list of small peptides (<50 residues) that have two NMR structures determined, one where the peptide was in TFE solution (or a similar solution that is less-polar than H20) and one where the peptide was in H20.
What could be a reasonably pain-free approach to this? (For instance, a way to search PDB database for only <50 residues)?
Thank you for any advice!
1 answer
Basically: you need the advanced search feature at the PDB site; the link is at top-left of the home page.
There, you can use all manner of search operators. For example, you can specify maximum length under Sequence Features -> Chain Length.
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I am especially interested in a situation like this (http://www.rcsb.org/pdb/explore/explore.do?structureId=2MCE), where they report the "solution structure of [the peptide in NMR] in both aqueous and membrane mimetic solvents". But I do not see where I can download the two separate structures of the peptide (one in aqueous solution, the other in MM solvents). After all, there is only one "Download Files" tab at the top-right corner of the screen....