Α-葡聚糖

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支链淀粉结构图,其中主链的不同单体之间由α-1,4-糖苷键聚合而成,支链形成处,接合两个单糖残基的是α-1,6-糖苷键

α-葡聚糖alpha glucan)是指由α-葡萄糖[註 1]聚合形成的聚糖[1]淀粉(包括直链淀粉支链淀粉)、糖原均属于α-葡聚糖。在淀粉和糖原分子中,主链的不同单体之间由α-1,4-糖苷键聚合而成,在形成支链处,会有α-1,6-糖苷键存在[2][3]。另外,已有人工合成以α-1,3-糖苷键聚合的α-葡聚糖的报导[4]

参见[编辑]

注释[编辑]

  1. ^ 在D系糖中,α代表半缩醛羟基在碳环下

参考资料[编辑]

  1. ^ A comparative study on .alpha.-glucan phosphorylases from plant and animal: interrelationship between the polysaccharide and pyridoxal phosphate binding sites by affinity electrophoresis. pubs.acs.org. [2018-12-11]. doi:10.1021/bi00552a001 (英语). 
  2. ^ Robert K. Murray; 等. 哈珀图解生物化学 (Harper's Illustrated Biochemistry) 27th edition. 北京: 科学出版社. 2010: 121–122. ISBN 978-7-03-028539-3. 
  3. ^ Ai Y, Nelson B, Birt DF, Jane JL. In vitro and in vivo digestion of octenyl succinic starch. CARBOHYDRATE POLYMERS. 2013, 98   (2): 1266–1271. PMID 24053802. doi:10.1016/j.carbpol.2013.07.057. 
  4. ^ Puanglek, Sakarin; Kimura, Satoshi; Enomoto-Rogers, Yukiko; Kabe, Taizo; Yoshida, Makoto; Wada, Masahisa; Iwata, Tadahisa. In vitro synthesis of linear α-1,3-glucan and chemical modification to ester derivatives exhibiting outstanding thermal properties. Scientific Reports. 2016, 6 (1). ISSN 2045-2322. doi:10.1038/srep30479.