Entry
Name
Protein processing in endoplasmic reticulum - Pseudoliparis swirei (Mariana hadal snailfish)
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
pswi04141 Protein processing in endoplasmic reticulum
Other DBs
Organism
Pseudoliparis swirei (Mariana hadal snailfish) [GN:
pswi ]
Gene
130188433 ern1; serine/threonine-protein kinase/endoribonuclease IRE1 isoform X1 [KO:K08852 ] [EC:2.7.11.1 3.1.26.-]
130188618 atf4b; LOW QUALITY PROTEIN: activating transcription factor 4b [KO:K04374 ]
130189226 rad23aa; RAD23 homolog A, nucleotide excision repair protein a [KO:K10839 ]
130190034 atf4a; cyclic AMP-dependent transcription factor ATF-4 [KO:K04374 ]
130193023 ero1a; ERO1-like protein alpha isoform X1 [KO:K10950 ] [EC:1.8.4.-]
130193663 edem3; ER degradation-enhancing alpha-mannosidase-like protein 3 isoform X1 [KO:K10086 ]
130197003 ufd1l; ubiquitin recognition factor in ER-associated degradation protein 1 [KO:K14016 ]
130197333 si:dkey-13n15.2; LOW QUALITY PROTEIN: protein transport protein Sec24C [KO:K14007 ]
130198179 dad1; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit DAD1 [KO:K12668 ]
130199688 dnajc5aa; dnaJ (Hsp40) homolog, subfamily C, member 5aa isoform X1 [KO:K09525 ]
130199916 zgc:113278; translocating chain-associated membrane protein 1-like 1-like [KO:K14010 ]
130199976 ddost; dolichyl-diphosphooligosaccharide--protein glycosyltransferase 48 kDa subunit [KO:K12670 ]
130200189 edem2; ER degradation-enhancing alpha-mannosidase-like protein 2 [KO:K10085 ]
130201073 dnajc5gb; dnaJ (Hsp40) homolog, subfamily C, member 5 gamma b [KO:K09525 ]
130202004 uggt1; UDP-glucose:glycoprotein glucosyltransferase 1 isoform X1 [KO:K11718 ] [EC:2.4.1.-]
130202493 eif2s1b; eukaryotic translation initiation factor 2 subunit 1b [KO:K03237 ]
130202610 dnajc5ga; dnaJ (Hsp40) homolog, subfamily C, member 5 gamma a isoform X1 [KO:K09525 ]
130202778 sec63; translocation protein SEC63 homolog isoform X1 [KO:K09540 ]
130203073 hsp90aa1.2; heat shock protein 90, alpha (cytosolic), class A member 1, tandem duplicate 2 [KO:K04079 ]
130203424 nploc4; nuclear protein localization protein 4 homolog [KO:K14015 ]
130203872 sar1aa; GTP-binding protein SAR1b isoform X1 [KO:K07953 ] [EC:3.6.5.-]
130204560 uggt2; UDP-glucose:glycoprotein glucosyltransferase 2 isoform X1 [KO:K11718 ] [EC:2.4.1.-]
130204977 sec31a; LOW QUALITY PROTEIN: protein transport protein Sec31A [KO:K14005 ]
130205488 man1b1a; endoplasmic reticulum mannosyl-oligosaccharide 1,2-alpha-mannosidase [KO:K23741 ]
130205564 si:ch211-282j22.3; ER degradation-enhancing alpha-mannosidase-like protein 3 [KO:K10086 ]
130206381 sec61g; protein transport protein Sec61 subunit gamma [KO:K07342 ]
130206471 tram1; translocating chain-associated membrane protein 1 [KO:K14010 ]
130206514 ssr1; translocon-associated protein subunit alpha isoform X1 [KO:K13249 ]
130206770 dnajc10; dnaJ homolog subfamily C member 10 [KO:K09530 ] [EC:1.8.4.-]
130207520 nfe2l2a; nuclear factor erythroid 2-related factor 2a [KO:K05638 ]
130207599 sar1ab; secretion associated, Ras related GTPase 1Ab isoform X1 [KO:K07953 ] [EC:3.6.5.-]
130208070 edem1; ER degradation-enhancing alpha-mannosidase-like protein 1 [KO:K10084 ]
130208223 rpn1; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 1 [KO:K12666 ]
130208678 sec61a1a; protein transport protein Sec61 subunit alpha-like 1 [KO:K10956 ]
130208872 rpn2; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2 isoform X1 [KO:K12667 ]
130209912 lman2; vesicular integral-membrane protein VIP36 isoform X1 [KO:K10082 ]
130212011 stt3a; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3A [KO:K07151 ] [EC:2.4.99.18 ]
130212722 atf6b; LOW QUALITY PROTEIN: cyclic AMP-dependent transcription factor ATF-6 beta [KO:K09049 ]
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