Thcas Enzyme
THCAS (tetrahydrocannabinolic acid synthase) is an enzyme that catalyzes the conversion of cannabigerolic acid (CBGA) into tetrahydrocannabinolic acid (THCA), the acidic precursor to THC. This enzyme is present in cannabis plants and is responsible for determining whether a plant produces predominantly THC-type cannabinoids rather than CBD-type cannabinoids. The presence or absence of functional THCAS is a primary genetic determinant in cannabinoid production pathways. Understanding THCAS expression is critical for breeders selecting for cannabinoid profiles, as it represents one of the foundational enzymatic checkpoints in secondary metabolite biosynthesis.
Thcas Enzyme strains
No strains tagged into Thcas Enzyme yet — they'll appear here as breeders submit lineage records under this classification.
THCAS (tetrahydrocannabinolic acid synthase) is an enzyme that catalyzes the conversion of cannabigerolic acid (CBGA) into tetrahydrocannabinolic acid (THCA), the acidic precursor to THC. This enzyme is present in cannabis plants and is responsible for determining whether a plant produces predominantly THC-type cannabinoids rather than CBD-type cannabinoids. The presence or absence of functional THCAS is a primary genetic determinant in cannabinoid production pathways. Understanding THCAS expression is critical for breeders selecting for cannabinoid profiles, as it represents one of the foundational enzymatic checkpoints in secondary metabolite biosynthesis.
Breeders monitor THCAS activity and genetic markers controlling this enzyme to develop or maintain THC-dominant cultivars. Conversely, breeders working with CBD-dominant or balanced-ratio strains must select genetic backgrounds that limit or suppress THCAS expression in favor of CBDAS (the CBD-producing counterpart).
Educational reference · Cultivar metadata only · No medical claims