细菌中脯氨酸的生物合成、降解及功能  

Research progress in proline biosynthesis,degradation and function in bacteria

作　　者：刘玉霞 窦世娟[1] 王秀伶[1] Yuxia Liu;Shijuan Dou;Xiuling Wang(College of Life Sciences,Hebei Agricultural University,Baoding 071001,Hebei Province,China;Cangzhou Medical College,Cangzhou 061001,Hebei Province,China)

机构地区：[1]河北农业大学生命科学学院,河北保定071001 [2]沧州医学高等专科学校,河北沧州061001

出　　处：《微生物学报》2021年第11期3351-3362,共12页Acta Microbiologica Sinica

基　　金：国家自然科学基金(31670057);河北省现代农业产业技术体系大豆产后服务与加工专项(HBCT2019190202)。

摘　　要：脯氨酸的亲水力极强,是构成蛋白质的唯一亚氨基酸。脯氨酸在植物中的作用和机制已得到广泛研究,除作为渗透调节物质外,脯氨酸还在清除细胞活性氧或作为信号分子调控植物细胞生长发育、增殖或死亡中发挥重要作用。现有研究结果表明,适当浓度的脯氨酸在细菌细胞中发挥重要功能。本文对细菌脯氨酸的合成、降解、在细胞内外的转运及功能进行综述。Proline with strong hydrophilic property is the only sub-amino acid being used for protein synthesis.The function and mechanism for proline has been extensively studied in plant.Proline is not only an osmolyte,but it also has important roles in scavenging reactive oxygen species,acting as a signal molecule to regulate growth,development,proliferation and cell death in plant.Recent studies have demonstrated that a proper amount of proline plays important roles in bacterial cells.The biosynthesis,degradation,intracellular and extracellular transport as well as the function of proline produced by bacteria were reviewed in this paper.

关 键 词：脯氨酸 合成 降解 转运 功能 

分 类 号：Q936[生物学—微生物学]