| 2VSN: reference: Structure of an O-GlcNAc transferase homolog provides insight into intracellular glycosylation., Martinez-Fleites C, Macauley MS, He Y, Shen DL, Vocadlo DJ, Davies GJ, Nat Struct Mol Biol. 2008 Jul;15(7):764-5. Epub 2008 Jun 8. PMID: 18536723 |
This OCA 
Structure page
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(documentation).