1MTQ:
reference: Isolation, structure, and activity of GID, a novel alpha 4/7-conotoxin with an extended N-terminal sequence., Nicke A, Loughnan ML, Millard EL, Alewood PF, Adams DJ, Daly NL, Craik DJ, Lewis RJ, J Biol Chem 2003 Jan 31;278(5):3137-44. Epub 2002 Nov 4. PMID: 12419800

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