Entry
Name
Protein processing in endoplasmic reticulum - Molossus molossus (Pallas's mastiff bat)
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
mmf04141 Protein processing in endoplasmic reticulum
Ortholog table
Other DBs
Organism
Molossus molossus (Pallas's mastiff bat) [GN:
mmf ]
Gene
118618133 SEC61A1; protein transport protein Sec61 subunit alpha [KO:K10956 ]
118615242 SEC61A2; protein transport protein Sec61 subunit alpha [KO:K10956 ]
118620017 SEC61G; protein transport protein Sec61 subunit gamma [KO:K07342 ]
118621276 SEC63; translocation protein SEC63 homolog isoform X1 [KO:K09540 ]
118618509 RPN1; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 1 isoform X1 [KO:K12666 ]
118618311 RPN2; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2 isoform X1 [KO:K12667 ]
118637372 DAD1; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit DAD1 [KO:K12668 ]
118626082 DDOST; dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunit [KO:K12670 ]
118632911 STT3B; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B isoform X1 [KO:K07151 ] [EC:2.4.99.18 ]
118639908 STT3A; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3A isoform X1 [KO:K07151 ] [EC:2.4.99.18 ]
118632580 OSTC; oligosaccharyltransferase complex subunit OSTC isoform X1 [KO:K26501 ]
118625564 DNAJC10; dnaJ homolog subfamily C member 10 [KO:K09530 ] [EC:1.8.4.-]
118629766 endoplasmic reticulum mannosyl-oligosaccharide 1,2-alpha-mannosidase-like isoform X1 [KO:K23741 ] [EC:3.2.1.209 ]
118615456 SAR1B; GTP-binding protein SAR1b isoform X1 [KO:K07953 ] [EC:3.6.5.-]
118625784 UGGT1; UDP-glucose:glycoprotein glucosyltransferase 1 isoform X1 [KO:K11718 ] [EC:2.4.1.-]
118622692 UGGT2; UDP-glucose:glycoprotein glucosyltransferase 2 [KO:K11718 ] [EC:2.4.1.-]
118633043 EDEM1; ER degradation-enhancing alpha-mannosidase-like protein 1 isoform X1 [KO:K10084 ]
118619301 ER degradation-enhancing alpha-mannosidase-like protein 2 isoform X1 [KO:K10085 ]
118637080 EDEM3; ER degradation-enhancing alpha-mannosidase-like protein 3 isoform X1 [KO:K10086 ]
118635982 LOW QUALITY PROTEIN: endoplasmic reticulum lectin 1-like [KO:K14008 ]
118626293 SSR1; translocon-associated protein subunit alpha isoform X1 [KO:K13249 ]
118635800 SSR4; translocon-associated protein subunit delta isoform X1 [KO:K04571 ]
118615817 TRAM1L1; translocating chain-associated membrane protein 1-like 1 [KO:K14010 ]
118631602 TRAM1; translocating chain-associated membrane protein 1 [KO:K14010 ]
118617388 LOW QUALITY PROTEIN: UBX domain-containing protein 4-like [KO:K24348 ]
118634086 NPLOC4; nuclear protein localization protein 4 homolog [KO:K14015 ]
118640075 UFD1; ubiquitin recognition factor in ER-associated degradation protein 1 [KO:K14016 ]
118632386 DNAJB12; dnaJ homolog subfamily B member 12 isoform X1 [KO:K09518 ]
118627838 LOW QUALITY PROTEIN: heat shock protein HSP 90-beta-like [KO:K04079 ]
118634876 LOW QUALITY PROTEIN: heat shock protein HSP 90-beta-like [KO:K04079 ]
118635330 LOW QUALITY PROTEIN: heat shock protein HSP 90-beta-like [KO:K04079 ]
118637778 LOW QUALITY PROTEIN: heat shock protein HSP 90-beta-like [KO:K04079 ]
118615367 RAD23A; UV excision repair protein RAD23 homolog A isoform X1 [KO:K10839 ]
118619537 EIF2S1; eukaryotic translation initiation factor 2 subunit 1 [KO:K03237 ]
118625163 NFE2L2; nuclear factor erythroid 2-related factor 2 isoform X1 [KO:K05638 ]
118623538 ATF4; cyclic AMP-dependent transcription factor ATF-4 [KO:K04374 ]
118639353 PPP1R15A; protein phosphatase 1 regulatory subunit 15A isoform X1 [KO:K14019 ]
118637539 ATF6; cyclic AMP-dependent transcription factor ATF-6 alpha isoform X1 [KO:K09054 ]
118621725 ATF6B; cyclic AMP-dependent transcription factor ATF-6 beta [KO:K09049 ]
118633993 ERN1; serine/threonine-protein kinase/endoribonuclease IRE1 isoform X1 [KO:K08852 ] [EC:2.7.11.1 3.1.26.-]
118639046 HERPUD1; homocysteine-responsive endoplasmic reticulum-resident ubiquitin-like domain member 1 protein isoform X1 [KO:K14027 ]
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
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