WormMine

WS297

Intermine data mining platform for C. elegans and related nematodes

GO Term : GO:0072588 box H/ACA RNP complex GO

Namespace  cellular_component Obsolete  false
Description  A ribonucleoprotein complex that contains an RNA of the box H/ACA type and the four core proteins dyskerin, NOP10, NHP2, and GAR1 (human protein nomenclature). RNA pseudouridylation (isomerization of uridine to pseudouridine) is the major, and most likely the ancestral, function of H/ACA RNPs. Pseudouridylation targets include both large and small ribosomal RNAs (rRNAs), and small nuclear RNA (U2 snRNA). In addition to these catalytic H/ACA RNPs, a less abundant but more diverse class of structural H/ACA RNPs exists, which does not have pseudouridylation activity. These include the vertebrate telomerase RNP complex.

0 Cross References

0 Data Sets

1 Ontology

Name
GO

0 Ontology Annotations

5 Parents

Identifier Name Description
GO:0032991 protein-containing complex A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
GO:0005575 cellular_component A location, relative to cellular compartments and structures, occupied by a macromolecular machine. There are three types of cellular components described in the gene ontology: (1) the cellular anatomical entity where a gene product carries out a molecular function (e.g., plasma membrane, cytoskeleton) or membrane-enclosed compartments (e.g., mitochondrion); (2) virion components, where viral proteins act, and (3) the stable macromolecular complexes of which gene product are parts (e.g., the clathrin complex).
GO:0005732 sno(s)RNA-containing ribonucleoprotein complex A ribonucleoprotein complex that contains an RNA molecule of the snoRNA family and associated proteins. Many are involved in a step of processing of rRNA molecules: cleavage, 2'-O-methylation, or pseudouridylation, but other RNA types can be targets as well. The majority fall into one of two classes, box C/D type or box H/ACA type, which are conserved across eukaryotes and archaea. Other members include the telomerase RNA and the ribonuclease MRP RNA.
GO:1990904 ribonucleoprotein complex A macromolecular complex that contains both RNA and protein molecules.
GO:0072588 box H/ACA RNP complex A ribonucleoprotein complex that contains an RNA of the box H/ACA type and the four core proteins dyskerin, NOP10, NHP2, and GAR1 (human protein nomenclature). RNA pseudouridylation (isomerization of uridine to pseudouridine) is the major, and most likely the ancestral, function of H/ACA RNPs. Pseudouridylation targets include both large and small ribosomal RNAs (rRNAs), and small nuclear RNA (U2 snRNA). In addition to these catalytic H/ACA RNPs, a less abundant but more diverse class of structural H/ACA RNPs exists, which does not have pseudouridylation activity. These include the vertebrate telomerase RNP complex.

7 Relations

Relationship
Parent Term . Identifier

Child Term . Identifier
is_a GO:0072588 GO:0031429
is_a GO:0005732 GO:0072588
is_a GO:1990904 GO:0072588
is_a GO:0005575 GO:0072588
is_a GO:0032991 GO:0072588
is_a GO:0072588 GO:0072589
is_a GO:0072588 GO:0090661

2 Synonyms

Name Type
box H/ACA snoRNP pseudouridylase complex synonym
sRNP complex synonym