Reaction: GalNAc is transferred onto 3a

- in pathway: Maturation of protein 3a
This COVID-19 event has been created by a combination of computational inference (see https://reactome.org/documentation/inferred-events) from SARS-CoV-1 data and manual curation, as described in the summation for the overall SARS-CoV-2 infection pathway.

A sialyltransferase adds a terminal sialic acid moiety to protein 3a with an O-linked glycosyl side chain. This glycosylated form later is associated with the virion (Oostra et al, 2006)
Reaction - small molecule participants:
UDP [endoplasmic reticulum-Golgi intermediate compartment]
H+ [endoplasmic reticulum-Golgi intermediate compartment]
UDP-GalNAc [endoplasmic reticulum-Golgi intermediate compartment]
Reactome.org reaction link: R-HSA-9694438

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Reaction input - small molecules:
UDP-alpha-D-galactosamine
ChEBI:16846
Reaction output - small molecules:
UDP
ChEBI:17659
hydron
ChEBI:15378
Reactome.org link: R-HSA-9694438