Azetidine-2-carboxylicacid是脯氨酸的非蛋白原氨基酸同系物。可以在常见的甜菜中找到。在许多物种（包括人类）中，它可以错误地掺入蛋白质中代替脯氨酸。致毒和致畸剂。
CAS：2517-04-6
分子式：C4H7NO2
分子量：101.1
纯度：98%
存储：Store at -20°C

Background:

Azetidine-2-carboxylic acid is a non proteinogenic amino acid homologue of proline. Found in common beets. Azetidine-2-carboxylic acid can be misincorporated into proteins in place of proline in many species, including humans. Toxic and teratogenic agent[1][2].

Azetidine-2-carboxylic acid (375-5oo μg per day) is incorporated into the collagen synthesized by chick embryo cartilage in vitro[3].

[1]. Rubenstein E, et al. Azetidine-2-carboxylic acid in the food chain. Phytochemistry. 2009 Jan;70(1):100-4. [2]. Rubenstein E, et al. Misincorporation of the proline analog azetidine-2-carboxylic acid in the pathogenesis of multiple sclerosis: a hypothesis. J Neuropathol Exp Neurol. 2008 Nov;67(11):1035-40. [3]. Lane JM, et al. Effect of the proline analogue azetidine-2-carboxylic acid on collagen synthesis in vivo. I. Arrest of collagen accumulation in growing chick embryos. Biochim Biophys Acta. 1971 Jun 29;236(3):517-27.