2n24

Solution NMR structure of Contryphan-Vc1

spinqualitylabelsall models 2n24, 20 NMR models Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2n24 is a 1 chain structure. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance. NonStd Res: PCA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Certain peptide folds, owing to a combination of intrinsic stability and resilience to amino acid substitutions, are particularly effective for the display of diverse functional groups. Such "privileged scaffolds" are valuable as starting points for the engineering of new bioactive molecules. We have identified a precursor peptide expressed in the venom gland of the marine snail Conus victoriae, which appears to belong to a hitherto undescribed class of molluscan neuropeptides. Mass spectrometry matching with the venom confirmed the complete mature peptide sequence as a 31-residue peptide with a single disulfide bond. Solution structure determination revealed a unique peptide fold that we have designated the single disulfide-directed beta hairpin (SDH). The SDH fold is highly resistant to thermal denaturation and forms the core of several other multiple disulfide-containing peptide folds, including the inhibitor cystine knot. This elementary fold may offer a valuable starting point for the design and engineering of new bioactive peptides. A Naturally Occurring Peptide with an Elementary Single Disulfide-Directed beta-Hairpin Fold.,Robinson SD, Chhabra S, Belgi A, Chittoor B, Safavi-Hemami H, Robinson AJ, Papenfuss AT, Purcell AW, Norton RS Structure. 2016 Jan 2. pii: S0969-2126(15)00504-3. doi:, 10.1016/j.str.2015.11.015. PMID:26774129 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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