Entry
Name
Protein processing in endoplasmic reticulum - Corvus cornix (hooded crow)
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
ccw04141 Protein processing in endoplasmic reticulum
Ortholog table
Other DBs
Organism
Corvus cornix (hooded crow) [GN:
ccw ]
Gene
104683473 SEC61A1; LOW QUALITY PROTEIN: protein transport protein Sec61 subunit alpha [KO:K10956 ]
104694503 SEC61A2; protein transport protein Sec61 subunit alpha isoform X2 [KO:K10956 ]
104688920 SEC61G; protein transport protein Sec61 subunit gamma [KO:K07342 ]
104683471 RPN1; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 1 [KO:K12666 ]
104687883 RPN2; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2 isoform X1 [KO:K12667 ]
120411337 DAD1; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit DAD1 [KO:K12668 ]
104698593 DDOST; dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunit [KO:K12670 ]
104692142 STT3A; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3A isoform X1 [KO:K07151 ] [EC:2.4.99.18 ]
104689039 STT3B; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B [KO:K07151 ] [EC:2.4.99.18 ]
104691618 MAGT1; LOW QUALITY PROTEIN: magnesium transporter protein 1 [KO:K19478 ]
120410123 TMEM258; LOW QUALITY PROTEIN: transmembrane protein 258 [KO:K26502 ]
104696247 CKAP4; LOW QUALITY PROTEIN: cytoskeleton-associated protein 4 [KO:K13999 ]
104689358 DNAJC1; LOW QUALITY PROTEIN: dnaJ homolog subfamily C member 1 [KO:K09521 ]
104693821 DNAJC10; dnaJ homolog subfamily C member 10 [KO:K09530 ] [EC:1.8.4.-]
104689659 LMAN2; LOW QUALITY PROTEIN: vesicular integral-membrane protein VIP36 [KO:K10082 ]
104693069 UGGT1; UDP-glucose:glycoprotein glucosyltransferase 1 isoform X3 [KO:K11718 ] [EC:2.4.1.-]
104685968 UGGT2; UDP-glucose:glycoprotein glucosyltransferase 2 isoform X2 [KO:K11718 ] [EC:2.4.1.-]
104683394 EDEM1; LOW QUALITY PROTEIN: ER degradation-enhancing alpha-mannosidase-like protein 1 [KO:K10084 ]
104687899 ER degradation-enhancing alpha-mannosidase-like protein 2 [KO:K10085 ]
104693612 EDEM3; ER degradation-enhancing alpha-mannosidase-like protein 3 isoform X1 [KO:K10086 ]
104695934 ERO1A; ERO1-like protein alpha isoform X1 [KO:K10950 ] [EC:1.8.4.-]
104691449 SSR1; translocon-associated protein subunit alpha isoform X1 [KO:K13249 ]
104692823 TRAM1; translocating chain-associated membrane protein 1 [KO:K14010 ]
104697366 UBXN6; LOW QUALITY PROTEIN: UBX domain-containing protein 6 [KO:K14011 ]
104696017 NPLOC4; nuclear protein localization protein 4 homolog [KO:K14015 ]
104688611 UFD1; ubiquitin recognition factor in ER-associated degradation protein 1 isoform X2 [KO:K14016 ]
120409682 BAG1; BAG family molecular chaperone regulator 1 isoform X1 [KO:K09555 ]
104690489 PLAA; phospholipase A-2-activating protein isoform X1 [KO:K14018 ]
104693187 RAD23B; UV excision repair protein RAD23 homolog B isoform X1 [KO:K10839 ]
104683844 EIF2S1; eukaryotic translation initiation factor 2 subunit 1 [KO:K03237 ]
104696333 ATF4; cyclic AMP-dependent transcription factor ATF-4 [KO:K04374 ]
104695431 ATF6; LOW QUALITY PROTEIN: cyclic AMP-dependent transcription factor ATF-6 alpha [KO:K09054 ]
104694246 ERN1; serine/threonine-protein kinase/endoribonuclease IRE1 isoform X6 [KO:K08852 ] [EC:2.7.11.1 3.1.26.-]
104691884 HERPUD1; homocysteine-responsive endoplasmic reticulum-resident ubiquitin-like domain member 1 protein [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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