β-Apo-13-carotenone (D'Orenone) 是天然存在的β-阿法菌素，是RXRα的拮抗剂。

β-Apo-13-carotenone (DOrenone) is a naturally occurring β-apocarotenoid functioned as an antagonist of RXRα.

Oil

β-apo-13-Carotenone is identified as enzymatic cleavage products of β-carotene in homogenates of intestinal mucosa of rat. β-apo-13-carotenone is found to antagonize the activation of RXRα by 9-cis-retinoic acid and is effective at concentrations as low as 1nM. Molecular modeling studies reveal that β-apo-13-carotenone makes molecular interactions like an antagonist of RXRα. β-apo-13-carotenone competes for 9cRA binding to RXRα with an affinity (7–8 nM) identical to 9cRA itself. β-apo-13-carotenone antagonizes 9cRA activation of full-length hRXRα with a similar efficiency as the known antagonist UVI3003. β-apo-13-carotenone induces formation of the RXRα transcriptionally silent tetramer but does not inhibit coactivator recruitment to the isolated LBD. The uptake and/or metabolism of β-apo-13-carotenone does not allow for accumulation of these β-carotene metabolites in cells. 3

Room temperature in continental US; may vary elsewhere.

-80°C, protect from light

[1]. Eroglu A, et al. The eccentric cleavage product of β-carotene, β-apo-13-carotenone, functions as an antagonist of RXRα. Arch Biochem Biophys. 2010 Dec 1;504(1):11-6.
[2]. Sun J, et al. β-Apo-13-carotenone regulates retinoid X receptor transcriptional activity through tetramerization of the receptor. J Biol Chem. 2014 Nov 28;289(48):33118-24.

In Vitro: DMSO : 110 mg/mL (425.70 mM; Need ultrasonic)配制储备液