Reactome | Formation of the Spliceosomal B* complex

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Formation of the Spliceosomal B* complex Show undefined attributes

catalystActivity	[CatalystActivity:10092901] RNA helicase activity of Spliceosomal Bact complex [nucleoplasm]
category	omitted
compartment	[Compartment:7660] nucleoplasm
created	[InstanceEdit:9984900] Weiser, Joel, 2026-03-16
dbId	10092903
displayName	Formation of the Spliceosomal B* complex
eventOf	[Pathway:R-MMU-72163] mRNA Splicing - Major Pathway - Mus musculus
evidenceType	[EvidenceType:9984902] inferred by electronic annotation
followingEvent	[BlackBoxEvent:R-MMU-9794542] Formation of the Spliceosomal C complex containing intron lariat - Mus musculus
inferredFrom	[BlackBoxEvent:R-HSA-9770131] Formation of the Spliceosomal B* complex - Homo sapiens
input	[SimpleEntity:R-ALL-29358] ATP [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-8849148] Casc3 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-8867898] Cwc25 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-9770427] Dhx35 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-72060] Dhx38 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-9770419] Gpatch1 [nucleoplasm] [Complex:R-MMU-156657] Magoh-Y14 complex [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-9770428] Nsrp1 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-9769592] Ppig [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-8952113] Ppil4 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-8867893] Ppwd1 [nucleoplasm] [Complex:R-MMU-9769560] Spliceosomal Bact complex [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-8867884] Syf2 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-156776] Upf3b [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-9770425] Wdr70 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-9770430] YJU2 [nucleoplasm]
isInDisease	false
isInferred	true
maxDepth	1
name	Formation of the Spliceosomal B* complex
output	[SimpleEntity:R-ALL-113582] ADP [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-8867885] Cwc27 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-8850837] Dhx16 [nucleoplasm] [EntityWithAccessionedSequence:R-MMU-8850839] Gpkow [nucleoplasm] [DefinedSet:R-MMU-2396419-3] Homologues of MFAP1 [nucleoplasm] [DefinedSet:R-MMU-9769563-3] Homologues of RNF113A [nucleoplasm] [SimpleEntity:R-ALL-113550] Pi [nucleoplasm] [Complex:R-MMU-9769523] RES complex [nucleoplasm] [Complex:R-MMU-71967] SF3A [nucleoplasm] [Complex:R-MMU-71976] SF3B [nucleoplasm] [Complex:R-MMU-9794539] Spliceosomal B* complex [nucleoplasm]
precedingEvent	[BlackBoxEvent:R-MMU-9770145] Formation of the Spliceosomal Bact complex - Mus musculus
releaseDate	2026-03-25
schemaClass	BlackBoxEvent
species	[Species:48892] Mus musculus
stId	R-MMU-9770131
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-MMU-72163] mRNA Splicing - Major Pathway
(precedingEvent)	[BlackBoxEvent:R-MMU-9794542] Formation of the Spliceosomal C complex containing intron lariat
(inferredTo)	[BlackBoxEvent:R-HSA-9770131] Formation of the Spliceosomal B* complex

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