6BFI:
reference: Analysis of a vinculin homolog in a sponge (phylum Porifera) reveals that vertebrate-like cell adhesions emerged early in animal evolution., Miller PW, Pokutta S, Mitchell JM, Chodaparambil JV, Clarke DN, Nelson W, Weis WI, Nichols SA, J Biol Chem. 2018 Jun 7. pii: RA117.001325. doi: 10.1074/jbc.RA117.001325. PMID: 29880641

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