Entry
Name
mRNA surveillance pathway - Myotis lucifugus (little brown bat)
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
Myotis lucifugus (little brown bat) [GN:
mlf ]
Gene
102438225 NCBP1; nuclear cap-binding protein subunit 1 isoform X1 [KO:K12882 ]
102419029 UPF3B; regulator of nonsense transcripts 3B isoform X1 [KO:K14328 ]
102420583 ACIN1; apoptotic chromatin condensation inducer in the nucleus isoform X1 [KO:K12875 ]
102437280 LOW QUALITY PROTEIN: RNA-binding protein with serine-rich domain 1-like [KO:K14325 ]
102427065 RNPS1; RNA-binding protein with serine-rich domain 1 isoform X1 [KO:K14325 ]
102442203 LOW QUALITY PROTEIN: nuclear RNA export factor 2-like [KO:K14284 ]
102422240 SRRM1; LOW QUALITY PROTEIN: serine/arginine repetitive matrix protein 1 [KO:K13171 ]
102435044 PABPN1L; LOW QUALITY PROTEIN: embryonic polyadenylate-binding protein 2 [KO:K14396 ]
102437679 NUDT21; cleavage and polyadenylation specificity factor subunit 5 isoform X1 [KO:K14397 ]
102431336 cleavage and polyadenylation specificity factor subunit 6-like [KO:K14398 ]
102430601 CPSF7; cleavage and polyadenylation specificity factor subunit 7 isoform X2 [KO:K14398 ]
102427423 LOW QUALITY PROTEIN: cleavage and polyadenylation specificity factor subunit 6-like [KO:K14398 ]
102431088 PCF11; pre-mRNA cleavage complex 2 protein Pcf11 isoform X1 [KO:K14400 ]
102425405 LOW QUALITY PROTEIN: pre-mRNA cleavage complex 2 protein Pcf11-like [KO:K14400 ]
102437655 CPSF2; cleavage and polyadenylation specificity factor subunit 2 isoform X1 [KO:K14402 ]
102424456 CPSF3; cleavage and polyadenylation specificity factor subunit 3 isoform X1 [KO:K14403 ] [EC:3.1.27.-]
102423222 CPSF4; cleavage and polyadenylation specificity factor subunit 4 isoform X8 [KO:K14404 ]
102421783 CPSF4L; putative cleavage and polyadenylation specificity factor subunit 4-like protein [KO:K14404 ]
102418891 FIP1L1; pre-mRNA 3'-end-processing factor FIP1 isoform X1 [KO:K14405 ]
102440955 WDR33; pre-mRNA 3' end processing protein WDR33 isoform X1 [KO:K15542 ]
102428038 WDR82; LOW QUALITY PROTEIN: WD repeat-containing protein 82 [KO:K14962 ]
102429857 PPP1CA; serine/threonine-protein phosphatase PP1-alpha catalytic subunit isoform X2 [KO:K06269 ] [EC:3.1.3.16 ]
102421096 CSTF1; LOW QUALITY PROTEIN: cleavage stimulation factor subunit 1 [KO:K14406 ]
102432793 cleavage stimulation factor subunit 2 tau variant-like isoform X1 [KO:K14407 ]
102420052 CSTF3; cleavage stimulation factor subunit 3 isoform X1 [KO:K14408 ]
102428193 MSI2; RNA-binding protein Musashi homolog 2 isoform X3 [KO:K14411 ]
102436794 MSI1; LOW QUALITY PROTEIN: RNA-binding protein Musashi homolog 1 [KO:K14411 ]
102432686 LOW QUALITY PROTEIN: polyadenylate-binding protein 1-like [KO:K13126 ]
102430523 PABPC1L; polyadenylate-binding protein 1-like isoform X1 [KO:K13126 ]
102439508 ETF1; eukaryotic peptide chain release factor subunit 1 isoform X1 [KO:K03265 ]
102418167 GSPT1; LOW QUALITY PROTEIN: eukaryotic peptide chain release factor GTP-binding subunit ERF3A [KO:K03267 ]
102439147 GSPT2; eukaryotic peptide chain release factor GTP-binding subunit ERF3B [KO:K03267 ]
102434319 SMG6; telomerase-binding protein EST1A isoform X1 [KO:K11124 ] [EC:3.1.-.-]
102432188 PPP2CA; serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform [KO:K04382 ] [EC:3.1.3.16 ]
102430803 PPP2CB; serine/threonine-protein phosphatase 2A catalytic subunit beta isoform isoform X1 [KO:K04382 ] [EC:3.1.3.16 ]
102421388 PPP2R1B; serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform [KO:K03456 ]
102442817 PPP2R1A; serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform [KO:K03456 ]
102431175 PPP2R2A; serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform isoform X1 [KO:K04354 ]
102423271 serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B beta isoform [KO:K04354 ]
102440385 serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B gamma isoform-like [KO:K04354 ]
102437363 PPP2R2B; serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B beta isoform [KO:K04354 ]
102422214 PPP2R2D; serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B delta isoform isoform X1 [KO:K04354 ]
102433629 PPP2R3A; serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit alpha isoform X1 [KO:K11583 ]
102428034 PPP2R3C; serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit gamma isoform X1 [KO:K11583 ]
102433480 PPP2R5E; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit epsilon isoform isoform X1 [KO:K11584 ]
102417642 PPP2R5D; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform isoform X1 [KO:K11584 ]
102432946 PPP2R5A; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform isoform X1 [KO:K11584 ]
102430062 PPP2R5C; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit gamma isoform isoform X5 [KO:K11584 ]
102442935 PPP2R5B; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit beta 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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