Entry
Name
mRNA surveillance pathway - Camelus dromedarius (Arabian camel)
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
Other DBs
Organism
Camelus dromedarius (Arabian camel) [GN:
cdk ]
Gene
105084491 WDR33; pre-mRNA 3' end processing protein WDR33 isoform X2 [KO:K15542 ]
105085129 PPP2R2C; protein phosphatase 2, regulatory subunit B, gamma isoform X1 [KO:K04354 ]
105085282 PPP2R3A; serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit alpha isoform X3 [KO:K11583 ]
105085498 CSTF2; cleavage stimulation factor subunit 2 isoform X1 [KO:K14407 ]
105086205 PPP2R5E; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit epsilon isoform isoform X1 [KO:K11584 ]
105087814 PABPC1L; polyadenylate-binding protein 1-like isoform X1 [KO:K13126 ]
105088611 PPP2R5D; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit delta isoform [KO:K11584 ]
105089031 GSPT1; eukaryotic peptide chain release factor GTP-binding subunit ERF3A isoform X1 [KO:K03267 ]
105090279 PPP2CA; serine/threonine-protein phosphatase 2A catalytic subunit alpha isoform [KO:K04382 ] [EC:3.1.3.16 ]
105090716 ETF1; eukaryotic peptide chain release factor subunit 1 [KO:K03265 ]
105091234 CPSF3; cleavage and polyadenylation specificity factor subunit 3 isoform X2 [KO:K14403 ] [EC:3.1.27.-]
105092005 PPP2R1A; serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform [KO:K03456 ]
105093474 WDR82; LOW QUALITY PROTEIN: WD repeat-containing protein 82 [KO:K14962 ]
105093939 UPF3B; regulator of nonsense transcripts 3B isoform X2 [KO:K14328 ]
105094015 PPP2R1B; serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform isoform X1 [KO:K03456 ]
105094168 PPP2R3C; serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit gamma isoform X1 [KO:K11583 ]
105094429 SMG6; telomerase-binding protein EST1A isoform X1 [KO:K11124 ] [EC:3.1.-.-]
105094881 CPSF7; LOW QUALITY PROTEIN: cleavage and polyadenylation specificity factor subunit 7 [KO:K14398 ]
105095430 NCBP2L; LOW QUALITY PROTEIN: nuclear cap-binding protein subunit 2-like [KO:K12883 ]
105095491 UPF3A; regulator of nonsense transcripts 3A isoform X1 [KO:K14328 ]
105095883 CPSF2; cleavage and polyadenylation specificity factor subunit 2 [KO:K14402 ]
105096165 NUDT21; cleavage and polyadenylation specificity factor subunit 5 [KO:K14397 ]
105096982 ACIN1; apoptotic chromatin condensation inducer in the nucleus isoform X1 [KO:K12875 ]
105096986 PABPN1; LOW QUALITY PROTEIN: polyadenylate-binding protein 2 [KO:K14396 ]
105097638 PCF11; pre-mRNA cleavage complex 2 protein Pcf11 isoform X3 [KO:K14400 ]
105097761 PPP2R2B; serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B beta isoform isoform X2 [KO:K04354 ]
105097794 MSI2; RNA-binding protein Musashi homolog 2 isoform X1 [KO:K14411 ]
105099311 PPP2R5A; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform [KO:K11584 ]
105099358 CPSF4; cleavage and polyadenylation specificity factor subunit 4 isoform X4 [KO:K14404 ]
105099706 RNPS1; RNA-binding protein with serine-rich domain 1 isoform X1 [KO:K14325 ]
105099924 FIP1L1; pre-mRNA 3'-end-processing factor FIP1 isoform X7 [KO:K14405 ]
105100302 CSTF2T; cleavage stimulation factor subunit 2 tau variant [KO:K14407 ]
105101081 CPSF6; cleavage and polyadenylation specificity factor subunit 6 isoform X1 [KO:K14398 ]
105101567 GSPT2; eukaryotic peptide chain release factor GTP-binding subunit ERF3B [KO:K03267 ]
105101998 MSI1; LOW QUALITY PROTEIN: RNA-binding protein Musashi homolog 1 [KO:K14411 ]
105102246 NCBP1; nuclear cap-binding protein subunit 1 isoform X1 [KO:K12882 ]
105102343 PPP2R2A; serine/threonine-protein phosphatase 2A 55 kDa regulatory subunit B alpha isoform isoform X2 [KO:K04354 ]
105102484 PPP1CC; serine/threonine-protein phosphatase PP1-gamma catalytic subunit isoform X1 [KO:K06269 ] [EC:3.1.3.16 ]
105102628 PPP2R5B; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit beta isoform isoform X1 [KO:K11584 ]
105103741 PPP2R3B; serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit beta isoform X1 [KO:K11583 ]
105104107 DAZAP1; LOW QUALITY PROTEIN: DAZ-associated protein 1 [KO:K14411 ]
105104318 CPSF4L; putative cleavage and polyadenylation specificity factor subunit 4-like protein isoform X3 [KO:K14404 ]
105104430 PPP1CA; LOW QUALITY PROTEIN: serine/threonine-protein phosphatase PP1-alpha catalytic subunit [KO:K06269 ] [EC:3.1.3.16 ]
105104691 PABPN1L; embryonic polyadenylate-binding protein 2 isoform X2 [KO:K14396 ]
105104992 CPSF1; cleavage and polyadenylation specificity factor subunit 1 isoform X1 [KO:K14401 ]
105105563 SSU72; LOW QUALITY PROTEIN: RNA polymerase II subunit A C-terminal domain phosphatase SSU72 [KO:K15544 ] [EC:3.1.3.16 ]
105105619 PPP2R5C; serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit gamma isoform isoform X1 [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