Reactome Pathway Database

Schema > Reaction > Entries

B4GALT1:LALBA transfers Gal from UDP-Gal to Glc to form Lac Show undefined attributes

catalystActivity

[CatalystActivity:10040495] lactose synthase activity of B4GALT1:LALBA [Golgi membrane]

category transition

compartment

created [InstanceEdit:9965813] Weiser, Joel, 2025年08月27日

dbId 10040497

displayName B4GALT1:LALBA transfers Gal from UDP-Gal to Glc to form Lac

eventOf

[Pathway:R-MMU-5653890] Lactose synthesis - Mus musculus

evidenceType [EvidenceType:9965817] inferred by electronic annotation

inferredFrom

[Reaction:R-HSA-5653878] B4GALT1:LALBA transfers Gal from UDP-Gal to Glc to form Lac - Homo sapiens

input

isInDisease false

isInferred true

maxDepth 1

name

B4GALT1:LALBA transfers Gal from UDP-Gal to Glc to form Lac
UDP-alpha-D-galactose + D-glucose => lactose + UDP + H(+)
Glc + UDP-Gal => Lac + UDP

output

precedingEvent

releaseDate 2025年09月18日

schemaClass Reaction

species

[Species:48892] Mus musculus

stId R-MMU-5653878

summation

[Summation:9965816] 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-MMU-5653890] Lactose synthesis

(inferredTo)

[Reaction:R-HSA-5653878] B4GALT1:LALBA transfers Gal from UDP-Gal to Glc to form Lac

© 2025 Reactome

Cite Us!