1S4N:
reference: Structure of Kre2p/Mnt1p: a yeast alpha1,2-mannosyltransferase involved in mannoprotein biosynthesis., Lobsanov YD, Romero PA, Sleno B, Yu B, Yip P, Herscovics A, Howell PL, J Biol Chem 2004 Apr 23;279(17):17921-31. Epub 2004 Jan 28. PMID: 14752117

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