Reactome | B4GALTs transfer Gal to a branch of keratan

Schema > Reaction > Entries

B4GALTs transfer Gal to a branch of keratan Show undefined attributes

catalystActivity	[CatalystActivity:10766082] beta-N-acetylglucosaminylglycopeptide beta-1,4-galactosyltransferase activity of B4GALT1-6 homodimers [Golgi membrane]
category	transition
compartment	[Compartment:20699] Golgi membrane [Compartment:17963] Golgi lumen
created	[InstanceEdit:10732209] Weiser, Joel, 2026-03-16
dbId	10778630
displayName	B4GALTs transfer Gal to a branch of keratan
eventOf	[Pathway:R-GGA-2022854] Keratan sulfate biosynthesis - Gallus gallus
evidenceType	[EvidenceType:9984902] inferred by electronic annotation
followingEvent	[Reaction:R-GGA-2046285] ST3GAL1-4,6 optionally cap keratan chain - Gallus gallus
inferredFrom	[Reaction:R-HSA-2046298] B4GALTs transfer Gal to a branch of keratan - Homo sapiens
input	[DefinedSet:R-GGA-2046206] Keratan(2)-PG [Golgi lumen] [SimpleEntity:R-ALL-735682] UDP-Gal [Golgi lumen]
isInDisease	false
isInferred	true
maxDepth	1
name	B4GALTs transfer Gal to a branch of keratan B4GALTs can add galactose to a branch of an N-glycan to extend a keratan chain
output	[SimpleEntity:R-ALL-425969] H+ [Golgi lumen] [DefinedSet:R-GGA-2046314] Keratan(3)-PG [Golgi lumen] [SimpleEntity:R-ALL-205687] UDP [Golgi lumen]
precedingEvent	[Reaction:R-GGA-2046265] B4GALTs transfer Gal to the keratan chain - Gallus gallus
releaseDate	2026-03-25
schemaClass	Reaction
species	[Species:49591] Gallus gallus
stId	R-GGA-2046298
summation	[Summation:9984901] This event has been computationally inferred from an event that has been demonstrated in another species. The inference is based on the homology mapping from PANTHER. Briefly, reactions for which all involved PhysicalEntities (in input, output and catalyst) have a mapped orthologue/paralogue (for complexes at least 75% of components must have a mapping) are inferred to the other species. High level events are also inferred for these events to allow for easier navigation. More details and caveats of the event inference in Reactome. For details on PANTHER see also: http://www.pantherdb.org/about.jsp

Referrals

(hasEvent)	[Pathway:R-GGA-2022854] Keratan sulfate biosynthesis
(precedingEvent)	[Reaction:R-GGA-2046285] ST3GAL1-4,6 optionally cap keratan chain
(inferredTo)	[Reaction:R-HSA-2046298] B4GALTs transfer Gal to a branch of keratan

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