CAS

Triterpenoid/sterol-precursor shared module: SQS/SQE/OSC-family cyclases build the triterpenoid scaffold feeding sterol biosynthesis; overlap between terpenoid and steroid contexts is expected.

Atlas summary family CAS.

Lineage Coverage

Detected in 783 of 789 public species; click a lineage to inspect its species list.

Species Distribution

Related Modules

Pathway Position Map

Pathways are arranged by literature-curated biosynthetic stages and highlight the current enzyme family; branched pathways are grouped by stage rather than forced into one linear reaction chain.

Curated order

Steroid pathway 35857 current-family members Du et al. 2022; Zebosi et al. 2024

Sterol precursor formation

SQS/FDFT1 4389 SQE 4569 CAS 35857

Phytosterol backbone

SMT1/SMT2/SMT3 27781 SMO1/SMO2 4067 CPI1 1261 CYP51G1 190 FK 1234 HYD1 1364 DWF7 1524 DWF5 888 DWF1 1689

Brassinosteroid branch

DET2 1316 DWF4/CYP90B1 290 CPD/CYP90A1 103 ROT3/CYP90C1 193 CYP90D1 142 BR6OX1/CYP85A1 40 BR6OX2/CYP85A2 68

Family Gene List

Gene	Species	Protein ID
artemisia_argyi_GWHPBRAE058434	artemisia_argyi	artemisia_argyi_GWHPBRAE058434
artemisia_argyi_GWHPBRAE059251	artemisia_argyi	artemisia_argyi_GWHPBRAE059251
artemisia_argyi_GWHPBRAE059404	artemisia_argyi	artemisia_argyi_GWHPBRAE059404
artemisia_argyi_GWHPBRAE059405	artemisia_argyi	artemisia_argyi_GWHPBRAE059405
artemisia_argyi_GWHPBRAE059408	artemisia_argyi	artemisia_argyi_GWHPBRAE059408
artemisia_argyi_GWHPBRAE059409	artemisia_argyi	artemisia_argyi_GWHPBRAE059409
artemisia_argyi_GWHPBRAE059414	artemisia_argyi	artemisia_argyi_GWHPBRAE059414
artemisia_argyi_GWHPBRAE060051	artemisia_argyi	artemisia_argyi_GWHPBRAE060051
artemisia_argyi_GWHPBRAE060819	artemisia_argyi	artemisia_argyi_GWHPBRAE060819
artemisia_argyi_GWHPBRAE061527	artemisia_argyi	artemisia_argyi_GWHPBRAE061527
artemisia_argyi_GWHPBRAE061849	artemisia_argyi	artemisia_argyi_GWHPBRAE061849
artemisia_argyi_GWHPBRAE061996	artemisia_argyi	artemisia_argyi_GWHPBRAE061996
artemisia_argyi_GWHPBRAE062021	artemisia_argyi	artemisia_argyi_GWHPBRAE062021
artemisia_argyi_GWHPBRAE062563	artemisia_argyi	artemisia_argyi_GWHPBRAE062563
artemisia_argyi_GWHPBRAE062656	artemisia_argyi	artemisia_argyi_GWHPBRAE062656
artemisia_argyi_GWHPBRAE062735	artemisia_argyi	artemisia_argyi_GWHPBRAE062735
artemisia_argyi_GWHPBRAE062832	artemisia_argyi	artemisia_argyi_GWHPBRAE062832
artemisia_tridentata_ANN00315-RA	artemisia_tridentata	artemisia_tridentata_ANN00315-RA
artemisia_tridentata_ANN00317-RA	artemisia_tridentata	artemisia_tridentata_ANN00317-RA
artemisia_tridentata_ANN00318-RA	artemisia_tridentata	artemisia_tridentata_ANN00318-RA
artemisia_tridentata_ANN00320-RA	artemisia_tridentata	artemisia_tridentata_ANN00320-RA
artemisia_tridentata_ANN00322-RA	artemisia_tridentata	artemisia_tridentata_ANN00322-RA
artemisia_tridentata_ANN00323-RA	artemisia_tridentata	artemisia_tridentata_ANN00323-RA
artemisia_tridentata_ANN00341-RA	artemisia_tridentata	artemisia_tridentata_ANN00341-RA
artemisia_tridentata_ANN00420-RA	artemisia_tridentata	artemisia_tridentata_ANN00420-RA
artemisia_tridentata_ANN01079-RA	artemisia_tridentata	artemisia_tridentata_ANN01079-RA
artemisia_tridentata_ANN02396-RA	artemisia_tridentata	artemisia_tridentata_ANN02396-RA
artemisia_tridentata_ANN02761-RA	artemisia_tridentata	artemisia_tridentata_ANN02761-RA
artemisia_tridentata_ANN02780-RA	artemisia_tridentata	artemisia_tridentata_ANN02780-RA
artemisia_tridentata_ANN03411-RA	artemisia_tridentata	artemisia_tridentata_ANN03411-RA