FB2026_03 , released September 17, 2026
Complex: H/ACA SMALL NUCLEOLAR RIBONUCLEOPROTEIN COMPLEX
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General Information
Name
H/ACA SMALL NUCLEOLAR RIBONUCLEOPROTEIN COMPLEX
Species
D. melanogaster
Symbol
H-ACA
FlyBase ID
FBgg0001764
Date last reviewed
2023-08-01
Number of members
4
Description
Description
H/ACA small nucleolar ribonucleoprotein complex (H/ACA snoRNP) is a ribosome processing complex that catalyzes pseudouridylation of ribosomal RNA (rRNA) residues. The H/ACA sRNP complex is composed of four different core proteins that assemble onto a H/ACA guide RNA scaffold which identify target uridines in the rRNA for modification during ribosome synthesis. (Adapted from PMID:22065625, FBrf0239135 and FBrf0161482).
Notes on Group

Nop60B encodes a pseudouridine synthase that is the core catalytic component of H/ACA snoRNP complex. (FBrf0211423).

Source Material
The H/ACA SMALL NUCLEOLAR RIBONUCLEOPROTEIN COMPLEX Gene Group has been compiled using the following publication(s): Breznak et al., 2023 and Sanchez et al., 2016 .
Key Gene Ontology (GO) terms
Cellular Component
Related Gene Groups
Members (4)
For all members:
GO ribbon stack
 molecular functionbiological processcellular component
External Data
Synonyms and Secondary IDs
Synonym(s)
H-ACA
H/ACA SMALL NUCLEOLAR RIBONUCLEOPROTEIN COMPLEX
H/ACA RNPs
Secondary FlyBase ID(s)
References (3)