Main Reaction: L-α-aminoadipic acid + L-cysteine + L-valine >>L-δ-(α-aminoadipoyl)-L-cysteinyl-D-valine(ACV)

Reference: PubMed ID: 18279889
Authors: Lejon S, Ellis J, Valegård K
Title: The last step in cephalosporin C formation revealed: crystal structures of deacetylcephalosporin C acetyltransferase from Acremonium chrysogenum in complexes with reaction intermediates.
Published: 2008 Mar 28

L-α-aminoadipic acid + L-cysteine + L-valine --> L-δ-(α-aminoadipoyl)-L-cysteinyl-D-valine(ACV)