L methionine gamma lyase from Clostridium sporogenes (UniProt ID A0A1L3NFS6; https://www.uniprot.org/uniprotkb/A0A1L3NFS6/entry) fused with VGF S3 domain (UniProt ID A0A1P9FG28; https://www.uniprot.org/uniprotkb/A0A1P9FG28/entry) expressed in Escherichia coli