FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

SMN-Sm protein complex

ID (Ontology)

GO:0034719 (Gene Ontology)

Definition

A protein complex formed by the association of several methylated Sm proteins with the SMN complex; the latter contains the survival motor neuron (SMN) protein and at least eight additional integral components, including the Gemin2-8 and unrip proteins; additional proteins, including galectin-1 and galectin-3, are also found in the SMN-SM complex. The SMN-Sm complex is involved in spliceosomal snRNP assembly in the cytoplasm.[ PubMed:11522829 PubMed:17401408 ]

Comment

Links to External Ontologies

QuickGO data AmiGO data

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Genes (FBgn)	GO_CELLULAR_COMPONENT

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Genes
SMN-Sm protein complex (all annotations which use CV term, excluding "NOT" statements)
part_of \| SMN-Sm protein complex

Spanning Tree (Parents/Children)

intracellular anatomical structure
 |__cytoplasm_______________________
protein-containing complex          |
 |__Sm-like protein family complex__|
cellular anatomical structure       |
 |__cytoplasm_______________________|
                                    SMN-Sm protein complex  16 rec.
                                     |__Lsm-containing SMN-Sm protein complex 1 rec.
                                     |__SmD-containing SMN-Sm protein complex 2 rec.
                                     |__SMN complex 12 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	Sm-like protein family complex
Part of	cytoplasm
Synonyms & Secondary IDs
Synonyms
	"SMN-containing protein complex" BROAD
Secondary IDs

External Crossreferences & Linkouts