Binding Sites Cell Differentiation Cell Enlargement Cyclic AMP Cyclic AMP-Dependent Protein Kinase RIalpha Subunit Cyclic AMP-Dependent Protein Kinases Fungal Proteins Fungi Gene Expression Regulation, Fungal Mass Spectrometry Mucor Mucor circinelloides Mutation Protein Binding Protein Subunits RNA, Messenger Reproduction, Asexual Spores, Fungal article asexual reproduction binding site cell differentiation cell enlargement chemistry cyclic AMP cyclic AMP dependent protein kinase cyclic AMP dependent protein kinase regulatory subunit Ialpha enzymology fungal protein fungus spore