Addition of GlcNAc to the glycan on the A arm [GO_0003827]

Catalysis of the reaction: 3-(alpha-D-mannosyl)-beta-D-mannosyl-R + UDP-N-acetyl-alpha-D-glucosamine = 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R + H+ + UDP.

Open Addition of GlcNAc to the glycan on the A arm in VFB

VFB Term Json

{
    "term": {
        "core": {
            "iri": "http://purl.obolibrary.org/obo/GO_0003827",
            "symbol": "",
            "types": [
                "Entity",
                "Class"
            ],
            "short_form": "GO_0003827",
            "label": "Addition of GlcNAc to the glycan on the A arm"
        },
        "description": [
            "Catalysis of the reaction: 3-(alpha-D-mannosyl)-beta-D-mannosyl-R + UDP-N-acetyl-alpha-D-glucosamine = 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R + H+ + UDP."
        ],
        "comment": []
    },
    "query": "Get JSON for Class",
    "version": "44725ae",
    "parents": [
        {
            "symbol": "",
            "iri": "http://purl.obolibrary.org/obo/GO_0140103",
            "types": [
                "Entity",
                "Class"
            ],
            "short_form": "GO_0140103",
            "label": "catalytic activity, acting on a glycoprotein"
        },
        {
            "symbol": "",
            "iri": "http://purl.obolibrary.org/obo/GO_0008375",
            "types": [
                "Entity",
                "Class"
            ],
            "short_form": "GO_0008375",
            "label": "POMGNT2 transfers GlcNAc to Man-DAG1"
        }
    ],
    "relationships": [],
    "xrefs": [],
    "anatomy_channel_image": [],
    "pub_syn": [
        {
            "synonym": {
                "scope": "has_exact_synonym",
                "label": "alpha-1,3-mannosylglycoprotein beta-1,2-N-acetylglucosaminyltransferase activity",
                "type": ""
            },
            "pub": {
                "core": {
                    "symbol": "",
                    "iri": "http://flybase.org/reports/Unattributed",
                    "types": [
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                    ],
                    "short_form": "Unattributed",
                    "label": ""
                },
                "FlyBase": "",
                "PubMed": "",
                "DOI": ""
            }
        },
        {
            "synonym": {
                "scope": "has_related_synonym",
                "label": "uridine diphosphoacetylglucosamine-alpha-1,3-mannosylglycoprotein beta-1,2-N-acetylglucosaminyltransferase activity",
                "type": ""
            },
            "pub": {
                "core": {
                    "symbol": "",
                    "iri": "http://flybase.org/reports/Unattributed",
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                    ],
                    "short_form": "Unattributed",
                    "label": ""
                },
                "FlyBase": "",
                "PubMed": "",
                "DOI": ""
            }
        }
    ],
    "def_pubs": []
}