3.4.23.23 Mucor pusillus gene expressed in Saccharomyces cerevisiae 30644 3.4.23.23 in Escherichia coli 30646 3.4.23.23 aspartic proteinase gene expressed in Pichia pastoris 650661 3.4.23.23 expressed in Pichia pastoris 752456 3.4.23.23 expressed in Pichia pastoris GS115 cells 754970