226956-07-6

Unguisin B is a cyclic heptapeptide originally isolated from the marine fungus E. unguis whose structure is comprised of amino acids and GABA.¹

1. Malmstrom, J. Unguisins A and B: New cyclic peptides from the marine-derived fungus Emericella unguis J. Nat. Prod. 62(5),787-789(1999).