FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term box H/ACA snoRNP complex ID (Ontology) GO:0031429 (Gene Ontology)
Definition A box H/ACA small nucleolar ribonucleoprotein complex located in the nucleolus that catalyzes pseudouridylation of ribosomal RNA residues. The complex is composed of four different core proteins that assemble onto a H/ACA guide RNA scaffold that identifies specific uridines in rRNA for modification during ribosome synthesis.[ PubMed:17284456 PubMed:20227365 PubMed:22065625 ]
Also Known As "box H/ACA small nucleolar ribonucleoprotein complex" ; "box H/ACA snoRNP pseudouridylase complex"
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Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Genes (FBgn)  GO_CELLULAR_COMPONENT       4
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 Full annotation statements 
Relevant FlyBase reports
 Gene Groups Genes
 box H/ACA snoRNP complex (all annotations which use CV term, excluding "NOT" statements)       1      4
     part_of | box H/ACA snoRNP complex       --       4
Spanning Tree (Parents/Children)
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nucleus
 |__nuclear protein-containing complex__________
sno(s)RNA-containing ribonucleoprotein complex  |
 |__box H/ACA RNP complex_______________________|
nuclear lumen                                   |
 |__nucleolus___________________________________|
protein-containing complex                      |
 |__nuclear protein-containing complex__________|
 |__catalytic complex___________________________|
intracellular membraneless organelle            |
 |__nucleolus___________________________________|
                                                box H/ACA snoRNP complex  5 rec.
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Is a box H/ACA RNP complex
nuclear protein-containing complex
catalytic complex
Part of nucleolus
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Synonyms
  • "box H/ACA small nucleolar ribonucleoprotein complex" EXACT
    "box H/ACA snoRNP pseudouridylase complex" EXACT[ PubMed:17284456 ]
Secondary IDs
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