2XHE:
reference: Primordial neurosecretory apparatus identified in the choanoflagellate Monosiga brevicollis., Burkhardt P, Stegmann CM, Cooper B, Kloepper TH, Imig C, Varoqueaux F, Wahl MC, Fasshauer D, Proc Natl Acad Sci U S A. 2011 Sep 13;108(37):15264-9. Epub 2011 Aug 29. PMID: 21876177

This OCA Structure page
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