An APOBEC deaminase catalytic subunit of the apolipoprotein B (APOB) MESSENGER RNA (mRNA) editing enzyme complex that is involved in post-transcriptional editing of a CAA codon for GLYCINE to a UAA STOP CODON in the ApoB mRNA. It also functions in CGA (ARGININE) to UGA STOP CODON editing of NEUROFIBROMIN 1 mRNA and EPIGENETIC PROCESSES.

Synonyms: APOBEC-1 Protein, EC 3.5.4.36, Deaminase, APOBEC1, Deaminase, APOBEC-1, ApoB mRNA Editing Catalytic Subunit, APOBEC1 Deaminase, HEPR Protein, Apolipoprotein B mRNA Editing Enzyme, Catalytic Polypeptide 1, Apolipoprotein B mRNA Editing Enzyme, 0, APOBEC-1, APOBEC-1 Deaminase, APOBEC 1 Deaminase, APOBEC1 Protein, APOBEC 1 Protein, Apo B mRNA Editing Protein