Entry
Name
Protein processing in endoplasmic reticulum - Eucalyptus grandis (rose gum)
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
egr04141 Protein processing in endoplasmic reticulum
Ortholog table
Other DBs
Organism
Eucalyptus grandis (rose gum) [GN:
egr ]
Gene
104448949 dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 1A [KO:K12666 ]
104454222 dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 1B [KO:K12666 ]
104426567 dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2 [KO:K12667 ]
104456463 dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit DAD1 [KO:K12668 ]
104453501 dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunit [KO:K12670 ]
104425874 LOW QUALITY PROTEIN: dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B [KO:K07151 ] [EC:2.4.99.18 ]
104445743 probable dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 3B [KO:K19478 ]
104441935 LOW QUALITY PROTEIN: GTP-binding protein SAR1A [KO:K07953 ] [EC:3.6.5.-]
104441759 LOW QUALITY PROTEIN: GTP-binding protein SAR1A [KO:K07953 ] [EC:3.6.5.-]
104452029 LOW QUALITY PROTEIN: GTP-binding protein SAR1A [KO:K07953 ] [EC:3.6.5.-]
104430277 LOW QUALITY PROTEIN: GTP-binding protein SAR1A [KO:K07953 ] [EC:3.6.5.-]
104414581 LOW QUALITY PROTEIN: protein transport protein Sec23A [KO:K14006 ]
104419973 UDP-glucose:glycoprotein glucosyltransferase [KO:K11718 ] [EC:2.4.1.-]
104419110 translocon-associated protein subunit beta isoform X2 [KO:K13250 ]
104453667 LOW QUALITY PROTEIN: plant UBX domain-containing protein 2 [KO:K14011 ]
120295281 LOW QUALITY PROTEIN: plant UBX domain-containing protein 2 [KO:K14011 ]
104435092 LOW QUALITY PROTEIN: plant UBX domain-containing protein 4 [KO:K14012 ]
104453384 ubiquitin recognition factor in ER-associated degradation protein 1 [KO:K14016 ]
104420006 stromal 70 kDa heat shock-related protein, chloroplastic [KO:K03283 ]
104452509 stromal 70 kDa heat shock-related protein, chloroplastic [KO:K03283 ]
104445208 LOW QUALITY PROTEIN: heat shock cognate 70 kDa protein 2 [KO:K03283 ]
120296392 stromal 70 kDa heat shock-related protein, chloroplastic-like [KO:K03283 ]
104443693 23.6 kDa heat shock protein, mitochondrial isoform X2 [KO:K13993 ]
104422427 LOW QUALITY PROTEIN: 17.5 kDa class I heat shock protein [KO:K13993 ]
104448238 OVARIAN TUMOR DOMAIN-containing deubiquitinating enzyme 2 [KO:K13719 ] [EC:3.1.2.-]
104454416 eukaryotic translation initiation factor 2 subunit alpha homolog [KO:K03237 ]
120296384 LOW QUALITY PROTEIN: eukaryotic translation initiation factor 2 subunit alpha homolog [KO:K03237 ]
108958537 serine/threonine-protein kinase/endoribonuclease IRE1a-like isoform X1 [KO:K08852 ] [EC:2.7.11.1 3.1.26.-]
104422250 LOW QUALITY PROTEIN: ERAD-associated E3 ubiquitin-protein ligase component HRD3A [KO:K14026 ]
104423517 ERAD-associated E3 ubiquitin-protein ligase component HRD3A [KO:K14026 ]
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