Related ArticlesProgress in multidimensional NMR investigations of peptide and protein 3-D structures in solution. From structure to functional aspects.
2-D and 3-D NMR techniques were used to investigate the conformations in solution of several peptides and proteins for which crystalline structures are not available yet. Insect defensin A is a small (40 aa) antibiotic protein exhibiting a characteristic 'loop-helix-beta-sheet' structure. A striking analogy was found with charybdotoxin, a scorpion toxin in which a CSH (cysteine stabilized alpha-helix) motif is also present. Wheat phospholipid transfer protein (PLTP) (90 aa) has a 3-D structure resulting from the packing of four helices and of a C-terminal less well-defined fragment. Preliminary results show that PLTP forms a complex with lyso-PC and that such an interaction results in a conformational change affecting principally the C-terminal half of the protein. A last example is given with surfactin, a lipopeptide biosurfactant from bacterial origin. Its protonated form shows a very compact structure in which the two acidic residues located on the top of a 'horse saddle' topology face each other, whereas the ionized form could adopt a more extended conformation. A common property of these compounds is their capacity to interact with lipids. The present structural data open the way for a further establishment of structure-activity relationships.
Revealing Protein Structures in Solid-Phase Peptide Synthesis by 13C Solid-State NMR: Evidence of Excessive Misfolding for Alzheimer’s ?
Revealing Protein Structures in Solid-Phase Peptide Synthesis by 13C Solid-State NMR: Evidence of Excessive Misfolding for Alzheimer’s ?
Songlin Wang and Yoshitaka Ishii
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja212190z/aop/images/medium/ja-2011-12190z_0002.gif
Journal of the American Chemical Society
DOI: 10.1021/ja212190z
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/6EE7uthrnLg
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[NMR paper] The fumarate sensor DcuS: progress in rapid protein fold elucidation by combining pro
The fumarate sensor DcuS: progress in rapid protein fold elucidation by combining protein structure prediction methods with NMR spectroscopy.
Related Articles The fumarate sensor DcuS: progress in rapid protein fold elucidation by combining protein structure prediction methods with NMR spectroscopy.
J Magn Reson. 2005 Apr;173(2):310-6
Authors: Meiler J, Baker D
We illustrate how moderate resolution protein structures can be rapidly obtained by interlinking computational prediction methodologies with un- or partially assigned NMR data. To...
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[NMR paper] Structural investigations of a human calcitonin-derived carrier peptide in a membrane
Structural investigations of a human calcitonin-derived carrier peptide in a membrane environment by solid-state NMR.
Related Articles Structural investigations of a human calcitonin-derived carrier peptide in a membrane environment by solid-state NMR.
Biochemistry. 2004 Oct 5;43(39):12459-68
Authors: Wagner K, Beck-Sickinger AG, Huster D
Previous studies have shown that human calcitonin (hCT) and its C-terminal fragment hCT(9-32) translocate in nasal epithelium. Moreover, hCT(9-32) was used as a carrier to internalize efficiently the green...
[NMR paper] Solution structures of staphylococcal nuclease from multidimensional, multinuclear NM
Solution structures of staphylococcal nuclease from multidimensional, multinuclear NMR: nuclease-H124L and its ternary complex with Ca2+ and thymidine-3',5'-bisphosphate.
Related Articles Solution structures of staphylococcal nuclease from multidimensional, multinuclear NMR: nuclease-H124L and its ternary complex with Ca2+ and thymidine-3',5'-bisphosphate.
J Biomol NMR. 1997 Sep;10(2):143-64
Authors: Wang J, Truckses DM, Abildgaard F, Dzakula Z, Zolnai Z, Markley JL
The solution structures of staphylococcal nuclease (nuclease) H124L and its...
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[NMR paper] NMR structures of a mitochondrial transit peptide from the green alga Chlamydomonas r
NMR structures of a mitochondrial transit peptide from the green alga Chlamydomonas reinhardtii.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles NMR structures of a mitochondrial transit peptide from the green alga Chlamydomonas reinhardtii.
FEBS Lett. 1996 Aug 5;391(1-2):203-8
Authors: Lancelin JM, Gans P, Bouchayer E, Bally I, Arlaud GJ, Jacquot JP
The 26-amino-acid pre-sequence of the ATP synthase beta subunit that directs the protein from the cytosol to...
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[NMR paper] Trans-membrane peptide and protein structures in fluid membranes via NMR.
Trans-membrane peptide and protein structures in fluid membranes via NMR.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Trans-membrane peptide and protein structures in fluid membranes via NMR.
Biophys J. 1995 Nov;69(5):1631-2
Authors: Bloom M