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
MAKER_20230-RA	amaranthus_palmeri	MAKER_20230-RA
MAKER_21922-RA	amaranthus_palmeri	MAKER_21922-RA
MAKER_22358-RA	amaranthus_palmeri	MAKER_22358-RA
MAKER_23684-RA	amaranthus_palmeri	MAKER_23684-RA
MAKER_24158-RA	amaranthus_palmeri	MAKER_24158-RA
MAKER_25069-RA	amaranthus_palmeri	MAKER_25069-RA
MAKER_25536-RA	amaranthus_palmeri	MAKER_25536-RA
MAKER_25538-RA	amaranthus_palmeri	MAKER_25538-RA
MAKER_25899-RA	amaranthus_palmeri	MAKER_25899-RA
MAKER_26041-RA	amaranthus_palmeri	MAKER_26041-RA
MAKER_26812-RA	amaranthus_palmeri	MAKER_26812-RA
MAKER_28300-RA	amaranthus_palmeri	MAKER_28300-RA
MAKER_28946-RA	amaranthus_palmeri	MAKER_28946-RA
MAKER_32338-RA	amaranthus_palmeri	MAKER_32338-RA
amaranthus_tricolor_g10659.t1	amaranthus_tricolor	amaranthus_tricolor_g10659.t1
amaranthus_tricolor_g10662.t1	amaranthus_tricolor	amaranthus_tricolor_g10662.t1
amaranthus_tricolor_g10663.t1	amaranthus_tricolor	amaranthus_tricolor_g10663.t1
amaranthus_tricolor_g14001.t1	amaranthus_tricolor	amaranthus_tricolor_g14001.t1
amaranthus_tricolor_g14319.t1	amaranthus_tricolor	amaranthus_tricolor_g14319.t1
amaranthus_tricolor_g14332.t1	amaranthus_tricolor	amaranthus_tricolor_g14332.t1
amaranthus_tricolor_g14333.t1	amaranthus_tricolor	amaranthus_tricolor_g14333.t1
amaranthus_tricolor_g14334.t1	amaranthus_tricolor	amaranthus_tricolor_g14334.t1
amaranthus_tricolor_g16.t1	amaranthus_tricolor	amaranthus_tricolor_g16.t1
amaranthus_tricolor_g16411.t1	amaranthus_tricolor	amaranthus_tricolor_g16411.t1
amaranthus_tricolor_g1759.t1	amaranthus_tricolor	amaranthus_tricolor_g1759.t1
amaranthus_tricolor_g18879.t1	amaranthus_tricolor	amaranthus_tricolor_g18879.t1
amaranthus_tricolor_g18985.t1	amaranthus_tricolor	amaranthus_tricolor_g18985.t1
amaranthus_tricolor_g19823.t1	amaranthus_tricolor	amaranthus_tricolor_g19823.t1
amaranthus_tricolor_g19857.t1	amaranthus_tricolor	amaranthus_tricolor_g19857.t1
amaranthus_tricolor_g20176.t1	amaranthus_tricolor	amaranthus_tricolor_g20176.t1