IUBMB Enzyme Nomenclature


Accepted name: aminopeptidase Ey

Reaction: Differs from other aminopeptidases in broad specificity for amino acids in the P1 position and the ability to hydrolyse peptides of four or five residues that contain Pro in the P1' position

Comments: A zinc glycoprotein in peptidase family M1 (membrane alanyl aminopeptidase family), composed of two 150 kDa subunits. From the plasma fraction of hen egg yolk

Links to other databases: BRENDA, EXPASY, KEGG, MEROPS, Metacyc, CAS registry number: 9031-94-1


1. Ichishima, E., Yamagata, Y., Chiba, H., Sawaguchi, K. and Tanaka, T. Soluble and bound forms of aminopeptidase in hens egg-yolk. Agric. Biol. Chem. 53 (1989) 1867-1872.

2. Tanaka, T. and Ichishima, E. Substrate specificity of aminopeptidase Ey from hen's egg yolk. Comp. Biochem. Physiol. [B] 105 (1993) 105-110. [PMID: 7684960]

3. Tanaka, T. and Ichishima, E. Molecular properties of aminopeptidase Ey as a zinc-metalloenzyme. Int. J. Biochem. 25 (1993) 1681-1688. [PMID: 8288037]

[EC created 1995]

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