Human Interaction Network Ontology

Last uploaded: June 27, 2014
Preferred Name

mRNA Decay by 5' to 3' Exoribonuclease
Synonyms
Definitions

Degradation of mRNA from 5' to 3' occurs in three steps. First, the mRNA is bound at its 3' end by the Lsm1-7 complex. The bound Lsm1-7 may prevent nucleases from accessing the 3' end. Second, the 7-methylguanosine cap of the mRNA is hydrolyzed by the DCP1-DCP2 complex. Third, the 5' end of the decapped mRNA is attacked by the XRN1 exoribonuclease which digests the remainder of the mRNA from 5' to 3'. These processes may be physically connected by PATL1, the homolog of yeast Pat1, which stably binds the Lsm1-7 complex and interacts with the DCP1-DCP2 decapping complex and the Ccr4-NOT deadenylation complex (Ozgur et al. 2010). Edited: May, B, 2009-07-22 Reviewed: Wilusz, J, 2009-09-17 Authored: May, B, 2009-07-22

ID

http://purl.obolibrary.org/obo/HINO_0016670

comment

Degradation of mRNA from 5' to 3' occurs in three steps. First, the mRNA is bound at its 3' end by the Lsm1-7 complex. The bound Lsm1-7 may prevent nucleases from accessing the 3' end. Second, the 7-methylguanosine cap of the mRNA is hydrolyzed by the DCP1-DCP2 complex. Third, the 5' end of the decapped mRNA is attacked by the XRN1 exoribonuclease which digests the remainder of the mRNA from 5' to 3'. These processes may be physically connected by PATL1, the homolog of yeast Pat1, which stably binds the Lsm1-7 complex and interacts with the DCP1-DCP2 decapping complex and the Ccr4-NOT deadenylation complex (Ozgur et al. 2010).

Edited: May, B, 2009-07-22

Reviewed: Wilusz, J, 2009-09-17

Authored: May, B, 2009-07-22

definition source

Pubmed11283721

Pubmed15475613

Pubmed16141059

Reactome, http://www.reactome.org

Pubmed20584987

Pubmed14749774

Pubmed17245413

Pubmed19239894

label

mRNA Decay by 5' to 3' Exoribonuclease

located_in

http://purl.obolibrary.org/obo/NCBITaxon_9606

prefixIRI

HINO:0016670

prefLabel

mRNA Decay by 5' to 3' Exoribonuclease

seeAlso

GENE ONTOLOGYGO:0043928

Reactome Database ID Release 43430039

ReactomeREACT_20518

subClassOf

http://purl.obolibrary.org/obo/INO_0000021

has_part

http://purl.obolibrary.org/obo/HINO_0015265

http://purl.obolibrary.org/obo/HINO_0015261

http://purl.obolibrary.org/obo/HINO_0015267

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