Abstract
The focus of this review is the M-superfamily of Conus venom peptides. Disulfide rich peptides belonging to the M-superfamily have three loop regions and the cysteine arrangement: CC–C–C–CC, where the dashes represent loops one, two, and three, respectively. Characterization of M-superfamily peptides has demonstrated that diversity in cystine connectivity occurs between different branches of peptides even though the cysteine pattern remains consistent. This superfamily is subdivided into five branches, M-1 through M-5, based on the number of residues in the third loop region, between the fourth and fifth cysteine residues. M-superfamily peptides appear to be ubiquitous in Conus venom. They are largely unexplained in indigenous biological function, and they represent an active area of research within the scientific community.
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Acknowledgments
We would like to thank Drs. Greg Bulaj and Kenneth A. Cornell for their contributions to this manuscript. Additional thanks are owed to Seth Eidemiller, Steven D. Jacob, Matthew Turner, Luke Woodbury, and Aubrey Johnston for their editorial input. This publication was made possible by NIH Grant #P20 RR016454 from the INBRE Program of the National Center for Research Resources, Mountain States Tumor Medical Research Institute, and Research Corporation Cottrell College Scholars Program.
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Jacob, R.B., McDougal, O.M. The M-superfamily of conotoxins: a review. Cell. Mol. Life Sci. 67, 17–27 (2010). https://doi.org/10.1007/s00018-009-0125-0
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DOI: https://doi.org/10.1007/s00018-009-0125-0