Baz, or Par-3 family cell polarity regulator, is a human gene encoded by PARD3. It may also be known as: Partitioning defective 3 homolog; PARD-3; Atypical PKC isotype-specific-interacting protein; ASIP; CTCL tumor antigen se2-5; PAR3-alpha; atypical PKC isotype-specific interacting protein; par-3 family cell polarity regulator alpha; protein phosphatase 1, regulatory subunit 118; PAR3alpha; PARD3A; PPP1R118; SE2-5L16; SE2-5LT1; SE2-5T2. The encoded protein has an amino acid length of 1356 and a mass of 151.4 kDa. Other isoforms may exist. Baz is a member of the PAR3 family. Homologs of this gene exist in other organisms, including: Fly, Frog.