Defective CHSY1 does not transfer GalNAc to chondroitin [GO_0047238]

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            "short_form": "GO_0047238",
            "label": "Defective CHSY1 does not transfer GalNAc to chondroitin"
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            "Catalysis of the reaction: D-glucuronyl-N-acetyl-1,3-beta-D-galactosaminylproteoglycan + UDP-N-acetylgalactosamine = N-acetyl-D-galactosaminyl-1,4-beta-D-glucuronyl-N-acetyl-1,3-beta-D-galactosaminylproteoglycan + UDP."
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            "label": "B4GALNT2 transfers GalNAc to Type 2 MSGG to form Sda"
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                "label": "uridine diphosphoacetylgalactosamine-chondroitin acetylgalactosaminyltransferase II activity",
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