Entry
Name
mRNA surveillance pathway - Jatropha curcas (Barbados nut)
Description
The mRNA surveillance pathway is a quality control mechanism that detects and degrades abnormal mRNAs. These pathways include nonsense-mediated mRNA decay (NMD), nonstop mRNA decay (NSD), and no-go decay (NGD). NMD is a mechanism that eliminates mRNAs containing premature translation-termination codons (PTCs). In vertebrates, PTCs trigger efficient NMD when located upstream of an exon junction complex (EJC). Upf3, together with Upf1 and Upf2, may signal the presence of the PTC to the 5'end of the transcript, resulting in decapping and rapid exonucleolytic digestion of the mRNA. In the NSD pathway, which targets mRNAs lacking termination codons, the ribosome is believed to translate through the 3' untranslated region and stall at the end of the poly(A) tail. NSD involves an eRF3-like protein, Ski7p, which is hypothesized to bind the empty A site of the ribosome and recruit the exosome to degrade the mRNA from the 3' end. NGD targets mRNAs with stalls in translation elongation for endonucleolytic cleavage in a process involving the Dom34 and Hbs1 proteins.
Class
Genetic Information Processing; Translation
BRITE hierarchy
Pathway map
Ortholog table
Other DBs
Organism
Jatropha curcas (Barbados nut) [GN:
jcu ]
Gene
105627963 apoptotic chromatin condensation inducer in the nucleus [KO:K12875 ]
105629923 serine/arginine repetitive matrix protein 1 isoform X1 [KO:K13171 ]
105639549 transcription initiation factor TFIID subunit 15b isoform X1 [KO:K13098 ]
105644707 cleavage and polyadenylation specificity factor subunit 6 [KO:K14398 ]
105629451 LOW QUALITY PROTEIN: uncharacterized protein LOC105629451 [KO:K14400 ]
105648570 cleavage and polyadenylation specificity factor subunit 1 isoform X1 [KO:K14401 ]
105646924 cleavage and polyadenylation specificity factor subunit 2 isoform X3 [KO:K14402 ]
105633321 cleavage and polyadenylation specificity factor subunit 3-I [KO:K14403 ] [EC:3.1.27.-]
105636862 LOW QUALITY PROTEIN: 30-kDa cleavage and polyadenylation specificity factor 30 [KO:K14404 ]
105634327 eukaryotic peptide chain release factor GTP-binding subunit ERF3A isoform X1 [KO:K03267 ]
105650665 serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform [KO:K03456 ]
105642001 serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform [KO:K03456 ]
105631493 serine/threonine protein phosphatase 2A 55 kDa regulatory subunit B beta isoform isoform X1 [KO:K04354 ]
105638165 serine/threonine protein phosphatase 2A 55 kDa regulatory subunit B beta isoform isoform X1 [KO:K04354 ]
105640354 serine/threonine protein phosphatase 2A 55 kDa regulatory subunit B beta isoform [KO:K04354 ]
105631809 probable serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit TON2 [KO:K11583 ]
105632152 serine/threonine protein phosphatase 2A regulatory subunit B''beta isoform X1 [KO:K11583 ]
105647748 serine/threonine protein phosphatase 2A regulatory subunit B''beta [KO:K11583 ]
105644514 serine/threonine protein phosphatase 2A regulatory subunit B''alpha isoform X1 [KO:K11583 ]
105633250 serine/threonine protein phosphatase 2A 57 kDa regulatory subunit B' theta isoform [KO:K11584 ]
105638524 serine/threonine protein phosphatase 2A 57 kDa regulatory subunit B' beta isoform [KO:K11584 ]
105642281 serine/threonine protein phosphatase 2A 57 kDa regulatory subunit B' beta isoform [KO:K11584 ]
105639286 serine/threonine protein phosphatase 2A 57 kDa regulatory subunit B' kappa isoform isoform X2 [KO:K11584 ]
105644749 serine/threonine protein phosphatase 2A 57 kDa regulatory subunit B' theta isoform [KO:K11584 ]
105644750 serine/threonine protein phosphatase 2A 57 kDa regulatory subunit B' theta isoform [KO:K11584 ]
Reference
Authors
Maquat LE
Title
Nonsense-mediated mRNA decay: splicing, translation and mRNP dynamics.
Journal
Reference
Authors
Amrani N, Sachs MS, Jacobson A
Title
Early nonsense: mRNA decay solves a translational problem.
Journal
Reference
Authors
Eulalio A, Behm-Ansmant I, Izaurralde E
Title
P bodies: at the crossroads of post-transcriptional pathways.
Journal
Reference
Authors
Mandel CR, Bai Y, Tong L
Title
Protein factors in pre-mRNA 3'-end processing.
Journal
Reference
Authors
Clement SL, Lykke-Andersen J
Title
No mercy for messages that mess with the ribosome.
Journal
Related pathway
KO pathway
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