PATHWAY: mmu04141 Help
Entry
Name
Protein processing in endoplasmic reticulum - Mus musculus (house mouse)
Description
The endoplasmic reticulum (ER) is a subcellular organelle where proteins are folded with the help of lumenal chaperones. Newly synthesized peptides enter the ER via the sec61 pore and are glycosylated. Correctly folded proteins are packaged into transport vesicles that shuttle them to the Golgi complex. Misfolded proteins are retained within the ER lumen in complex with molecular chaperones. Proteins that are terminally misfolded bind to BiP and are directed toward degradation through the proteasome in a process called ER-associated degradation (ERAD). Accumulation of misfolded proteins in the ER causes ER stress and activates a signaling pathway called the unfolded protein response (UPR). In certain severe situations, however, the protective mechanisms activated by the UPR are not sufficient to restore normal ER function and cells die by apoptosis.
Class
Genetic Information Processing; Folding, sorting and degradation
BRITE hierarchy
Pathway map
mmu04141 Protein processing in endoplasmic reticulum
Ortholog table
Other DBs
Organism
Mus musculus (house mouse) [GN:
mmu ]
Gene
53421 Sec61a1; SEC61 translocon subunit alpha 1 [KO:K10956 ]
57743 Sec61a2; SEC61 translocon subunit alpha 2 [KO:K10956 ]
66212 Sec61b; SEC61 translocon subunit beta [KO:K09481 ]
20335 Sec61g; SEC61 translocon subunit gamma [KO:K07342 ]
69276 Sec62; SEC62 homolog, preprotein translocation [KO:K12275 ]
140740 Sec63; SEC63 homolog, protein translocation regulator [KO:K09540 ]
13200 Ddost; dolichyl-di-phosphooligosaccharide-protein glycotransferase [KO:K12670 ]
16430 Stt3a; STT3, subunit of the oligosaccharyltransferase complex, homolog A (S. cerevisiae) [KO:K07151 ] [EC:2.4.99.18 ]
68292 Stt3b; STT3, subunit of the oligosaccharyltransferase complex, homolog B (S. cerevisiae) [KO:K07151 ] [EC:2.4.99.18 ]
66357 Ostc; oligosaccharyltransferase complex subunit (non-catalytic) [KO:K26501 ]
81500 Sil1; SIL1 nucleotide exchange factor [KO:K14001 ]
67838 Dnajb11; DnaJ heat shock protein family (Hsp40) member B11 [KO:K09517 ]
13418 Dnajc1; DnaJ heat shock protein family (Hsp40) member C1 [KO:K09521 ]
100037258 Dnajc3; DnaJ heat shock protein family (Hsp40) member C3 [KO:K09523 ]
66861 Dnajc10; DnaJ heat shock protein family (Hsp40) member C10 [KO:K09530 ] [EC:1.8.4.-]
22027 Hsp90b1; heat shock protein 90, beta (Grp94), member 1 [KO:K09487 ]
19089 Prkcsh; protein kinase C substrate 80K-H [KO:K08288 ]
50907 Preb; prolactin regulatory element binding [KO:K14003 ]
20224 Sar1a; secretion associated Ras related GTPase 1A [KO:K07953 ] [EC:3.6.5.-]
66397 Sar1b; secretion associated Ras related GTPase 1B [KO:K07953 ] [EC:3.6.5.-]
110379 Sec13; SEC13 homolog, nuclear pore and COPII coat complex component [KO:K14004 ]
69162 Sec31a; SEC31 homolog A, COPII coat complex component [KO:K14005 ]
240667 Sec31b; SEC31 homolog B, COPII coat complex component [KO:K14005 ]
27054 Sec23b; SEC23 homolog B, COPII coat complex component [KO:K14006 ]
20334 Sec23a; SEC23 homolog A, COPII coat complex component [KO:K14006 ]
99683 Sec24b; SEC24 homolog B, COPII coat complex component [KO:K14007 ]
77371 Sec24a; SEC24 homolog A, COPII coat complex component [KO:K14007 ]
218811 Sec24c; SEC24 homolog C, COPII coat complex component [KO:K14007 ]
69608 Sec24d; SEC24 homolog D, COPII coat complex component [KO:K14007 ]
66435 Uggt2; UDP-glucose glycoprotein glucosyltransferase 2 [KO:K11718 ] [EC:2.4.1.-]
320011 Uggt1; UDP-glucose glycoprotein glucosyltransferase 1 [KO:K11718 ] [EC:2.4.1.-]
192193 Edem1; ER degradation enhancer, mannosidase alpha-like 1 [KO:K10084 ]
108687 Edem2; ER degradation enhancer, mannosidase alpha-like 2 [KO:K10085 ]
66967 Edem3; ER degradation enhancer, mannosidase alpha-like 3 [KO:K10086 ]
67397 Erp29; endoplasmic reticulum protein 29 [KO:K09586 ]
50527 Ero1a; endoplasmic reticulum oxidoreductase 1 alpha [KO:K10950 ] [EC:1.8.4.-]
67475 Ero1b; endoplasmic reticulum oxidoreductase 1 beta [KO:K10976 ] [EC:1.8.4.-]
66753 Erlec1; endoplasmic reticulum lectin 1 [KO:K14008 ]
67437 Ssr3; signal sequence receptor, gamma [KO:K13251 ]
20832 Ssr4; signal sequence receptor, delta [KO:K04571 ]
27061 Bcap31; B cell receptor associated protein 31 [KO:K14009 ]
72265 Tram1; translocating chain-associating membrane protein 1 [KO:K14010 ]
229801 Tram1l1; translocation associated membrane protein 1-like 1 [KO:K14010 ]
67819 Derl1; Der1-like domain family, member 1 [KO:K11519 ]
70377 Derl3; Der1-like domain family, member 3 [KO:K13989 ]
75744 Svip; small VCP/p97-interacting protein [KO:K14014 ]
217365 Nploc4; NPL4 homolog, ubiquitin recognition factor [KO:K14015 ]
22230 Ufd1; ubiquitin recognition factor in ER-associated degradation 1 [KO:K14016 ]
15502 Dnaja1; DnaJ heat shock protein family (Hsp40) member A1 [KO:K09502 ]
56445 Dnaja2; DnaJ heat shock protein family (Hsp40) member A2 [KO:K09503 ]
81489 Dnajb1; DnaJ heat shock protein family (Hsp40) member B1 [KO:K09507 ]
56812 Dnajb2; DnaJ heat shock protein family (Hsp40) member B2 [KO:K09508 ]
56709 Dnajb12; DnaJ heat shock protein family (Hsp40) member B12 [KO:K09518 ]
13002 Dnajc5; DnaJ heat shock protein family (Hsp40) member C5 [KO:K09525 ]
66326 Dnajc5b; DnaJ heat shock protein family (Hsp40) member C5 beta [KO:K09525 ]
231098 Dnajc5g; DnaJ heat shock protein family (Hsp40) member C5 gamma [KO:K09525 ]
15519 Hsp90aa1; heat shock protein 90, alpha (cytosolic), class A member 1 [KO:K04079 ]
15516 Hsp90ab1; heat shock protein 90 alpha (cytosolic), class B member 1 [KO:K04079 ]
15505 Hsph1; heat shock 105kDa/110kDa protein 1 [KO:K09485 ]
66245 Hspbp1; HSPA (heat shock 70kDa) binding protein, cytoplasmic cochaperone 1 [KO:K09562 ]
18786 Plaa; phospholipase A2, activating protein [KO:K14018 ]
19359 Rad23b; RAD23 homolog B, nucleotide excision repair protein [KO:K10839 ]
19358 Rad23a; RAD23 homolog A, nucleotide excision repair protein [KO:K10839 ]
13666 Eif2ak3; eukaryotic translation initiation factor 2 alpha kinase 3 [KO:K08860 ] [EC:2.7.11.1 ]
13665 Eif2s1; eukaryotic translation initiation factor 2, subunit 1 alpha [KO:K03237 ]
18024 Nfe2l2; nuclear factor, erythroid derived 2, like 2 [KO:K05638 ]
11911 Atf4; activating transcription factor 4 [KO:K04374 ]
17872 Ppp1r15a; protein phosphatase 1, regulatory subunit 15A [KO:K14019 ]
13198 Ddit3; DNA-damage inducible transcript 3 [KO:K04452 ]
12915 Atf6b; activating transcription factor 6 beta [KO:K09049 ]
22393 Wfs1; wolframin ER transmembrane glycoprotein [KO:K14020 ]
20338 Sel1l; sel-1 suppressor of lin-12-like (C. elegans) [KO:K14026 ]
228684 Sel1l2; sel-1 suppressor of lin-12-like 2 (C. elegans) [KO:K14026 ]
64209 Herpud1; homocysteine-inducible, endoplasmic reticulum stress-inducible, ubiquitin-like domain member 1 [KO:K14027 ]
21402 Skp1; S-phase kinase-associated protein 1 [KO:K03094 ]
Compound
Reference
Authors
Naidoo N
Title
ER and aging-Protein folding and the ER stress response.
Journal
Reference
Authors
Malhotra JD, Kaufman RJ
Title
The endoplasmic reticulum and the unfolded protein response.
Journal
Reference
Authors
Maattanen P, Gehring K, Bergeron JJ, Thomas DY
Title
Protein quality control in the ER: the recognition of misfolded proteins.
Journal
Reference
Authors
Stolz A, Wolf DH
Title
Endoplasmic reticulum associated protein degradation: a chaperone assisted journey to hell.
Journal
Reference
Authors
Dejgaard K, Theberge JF, Heath-Engel H, Chevet E, Tremblay ML, Thomas DY
Title
Organization of the Sec61 translocon, studied by high resolution native electrophoresis.
Journal
Related pathway
KO pathway
LinkDB
All DBs