ALG9（ALG9 alpha-1，2-mannosyltransferase），癌症关联基因，基因ID：79796，该基因编码一种α-1，2-甘露糖基转移酶，该酶在脂链低聚糖组装中发挥作用。该基因突变导致先天性糖基化型Il紊乱已发现该基因编码不同亚型的多个转录变体。[由RefSeq提供，2008年12月]This gene encodes an alpha-1，2-mannosyltransferase enzyme that functions in lipid-linked oligosaccharide assembly. Mutations in this gene result in congenital disorder of glycosylation type Il. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq， Dec 2008]。