Term Name:	cucurbitacin
Synonyms:	cucurbitacins
Definition:	Any one of a class of tetracyclic triterpenoids, formally derived from the triterpene hydrocarbon cucurbitane, developed by some plants (especially those of the family Cucurbitaceaeas) as a defence mechanism against herbivores.
Ontology:	ChEBI [CHEBI:16219] ( EBI )

Relationships

is a type of:	tetracyclic triterpenoid
has subtype:	(1S,2S,8xi,9beta,16alpha,17xi)-1-(beta-D-Glucopyranosyloxy)-2,16,20-trihydroxy-9,10,14-trimethyl-11,22-dioxo-4,9-cyclo-9,10-secocholest-5-en-25-yl acetate (2R,3S,4R,5S)-2-[[(1S,3S,9S,12R,14S,17R,19R,21R,22S)-2-hydroxy-22-(2-hydroxypropan-2-yl)-3,8,8,17,19-pentamethyl-23,24-dioxaheptacyclo[19.2.1.01,18.03,17.04,14.07,12.012,14]tetracosan-9-yl]oxy]oxane-3,4,5-triol (2S,3S,9R,13R,14S,16R)-2,3,16-Trihydroxy-17-[(2R)-2-hydroxy-6-methyl-3-oxohept-6-en-2-yl]-4,4,9,13,14-pentamethyl-1,2,3,7,8,10,12,15,16,17-decahydrocyclopenta[a]phenanthren-11-one (3b,7b,22x)-Cucurbita-5,24-diene-3,7,23-triol 7-glucoside (3b,16a,20R)-3,16,20,22,25-Pentahydroxy-5-cucurbiten-11-one 3-[glucosyl-(1->6)-glucoside] (3b,16a,20R)-3,16,20,22,25-Pentahydroxy-5-cucurbiten-11-one 3-[rhamnosyl-(1->4)-[glucosyl-(1->6)]-glucoside] (3b,16a,20R)-25-Acetoxy-3,16,20,22-tetrahydroxy-5-cucurbiten-11-one 3-glucoside (3S,7S,8S,9R,13R,14S,17R)-3-hydroxy-17-[(E,2R)-6-hydroxy-6-methylhept-4-en-2-yl]-4,4,13,14-tetramethyl-7-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3,7,8,10,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthrene-9-carbaldehyde (16alpha,20R,24S)-2,16,20,25-tetrahydroxy-24-methoxycucurbita-1,5-diene-3,11,22-trione 2-O-beta-D-glucopyranoside (16alpha,20R,24S)-16,24-epoxy-2,20,25-trihydroxycucurbita-1,5-diene-3,11,22-trione 2-O-beta-D-glucopyranoside (24E)-3,4-hydroxycucurbita-5,24-diene-26-oic acid (24E)-3beta-hydroxycucurbita-5,24-diene-26,29-dioic acid (24Z)-26-(Hexopyranosyloxy)-1,21-dihydroxy-9,19-cyclolanost-24-en-3-yl hexopyranoside 3,7-Dihydroxy-25-methoxycucurbita-5,23-dien-19-al 3beta-Cucurbita-5,24-dien-3-ol 11-Deoxocucurbitacin I 16-deoxycucurbitacin B 18-deoxyleucopaxillone A 22-Deoxocucurbitacin D 22-Deoxoisocucurbitacin D 23,24-dihydrocucurbitacin 25-O-acetylcimigenol 3-O-alpha-L-arabinopyranoside [(E,2R)-2-[(8S,9R,10R,13R,14S,16R,17R)-2,16-dihydroxy-4,4,9,13,14-pentamethyl-3,11-dioxo-8,10,12,15,16,17-hexahydro-7H-cyclopenta[a]phenanthren-17-yl]-6-hydroxy-6-methyl-3-oxohept-4-en-2-yl] acetate [17-(2,6-Dihydroxy-6-methyl-3-oxoheptan-2-yl)-3-hydroxy-4,4,9,13,14-pentamethyl-2-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-2,3,7,8,10,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-16-yl] acetate Astrasieversianin XVI Bryodulcosigenin Carnosifloside I Carnosifloside III Carnosifloside VI Cimigenol 3-O-beta-D-xylopyranoside Cimiracemoside D Cucurbitacin A cucurbitacin B Cucurbitacin B linoleyl ester Cucurbitacin B oleyl ester Cucurbitacin C cucurbitacin D cucurbitacin E cucurbitacin E 2-O-beta-D-glucopyranoside Cucurbitacin F Cucurbitacin H cucurbitacin I Cucurbitacin I 2-glucoside cucurbitacin I 2-O-beta-D-glucopyranoside cucurbitacin J cucurbitacin J 2-O-beta-D-glucopyranoside cucurbitacin K 2-O-beta-D-glucopyranoside Cucurbitacin L Cucurbitacin O Cucurbitacin P Cucurbitacin Q Cyclofoetoside B Dihydrocucurbitacin F Elaterinide Goyaglycoside a Goyaglycoside c Goyaglycoside g Hebevinoside I Hebevinoside II Hebevinoside III Hebevinoside IV Hebevinoside IX Hebevinoside V Hebevinoside VI Hebevinoside VII Hebevinoside X Hebevinoside XI Hebevinoside XII Hebevinoside XIII Hebevinoside XIV Isoastragaloside II Leucopaxillone A Momorcharaside A Momorcharaside B Momordicin I Momordicin II Momordicoside D Momordicoside G Momordicoside I Momordicoside K Momordicoside L NCGC00385187-01 Siamenoside I Spinoside A Thalicoside A
has_parent_hydride:	cucurbitane
has_role:	allelochemical