PMID- 31884629 OWN - NLM STAT- MEDLINE DCOM- 20200205 LR - 20201106 IS - 0065-2598 (Print) IS - 2214-8019 (Electronic) IS - 0065-2598 (Linking) VI - 1185 DP - 2019 TI - Pathomechanisms of ATF6-Associated Cone Photoreceptor Diseases. PG - 305-310 LID - 10.1007/978-3-030-27378-1_50 [doi] AB - Activating transcription factor 6 (ATF6) is a key regulator of the unfolded protein response (UPR). In response to endoplasmic reticulum (ER) stress, ATF6 is transported from the ER to the Golgi apparatus where it is cleaved by intramembrane proteolysis, releasing its cytosolic fragment. The cleaved ATF6 fragment, which is a basic leucine zipper (bZip) transcription factor, translocates to the nucleus and upregulates the expression of ER protein-folding chaperones and enzymes. Mutations in ATF6 cause heritable forms of cone photoreceptor dysfunction diseases. These mutations include missense, nonsense, splice site, and deletion or duplication changes found across the entire ATF6. To date, there are 11 ATF6 mutations reported, and we classified them into three classes based on their functional defects that interrupt distinct steps in the ATF6 signaling pathway. FAU - Chiang, Wei-Chieh Jerry AU - Chiang WJ AD - Department of Pathology, University of California, San Diego, La Jolla, CA, USA. wcchiang@ucsd.edu. FAU - Kroeger, Heike AU - Kroeger H AD - Department of Pathology, University of California, San Diego, La Jolla, CA, USA. FAU - Chea, Lulu AU - Chea L AD - Department of Pathology, University of California, San Diego, La Jolla, CA, USA. FAU - Lin, Jonathan H AU - Lin JH AD - Department of Pathology, University of California, San Diego, La Jolla, CA, USA. LA - eng GR - I01 BX002284/BX/BLRD VA/United States GR - R01 EY027335/EY/NEI NIH HHS/United States PT - Journal Article PL - United States TA - Adv Exp Med Biol JT - Advances in experimental medicine and biology JID - 0121103 RN - 0 (ATF6 protein, human) RN - 0 (Activating Transcription Factor 6) SB - IM MH - Activating Transcription Factor 6/*metabolism MH - Endoplasmic Reticulum Stress MH - Golgi Apparatus MH - Humans MH - Mutation MH - Protein Folding MH - Retinal Cone Photoreceptor Cells/*pathology MH - *Signal Transduction PMC - PMC7643264 MID - NIHMS1642040 OTO - NOTNLM OT - ATF6 OT - Achromatopsia OT - Cone photoreceptor OT - Cone-rod dystrophy OT - ER stress OT - Retinal degeneration OT - Unfolded protein response EDAT- 2019/12/31 06:00 MHDA- 2020/02/06 06:00 PMCR- 2020/11/05 CRDT- 2019/12/30 06:00 PHST- 2019/12/30 06:00 [entrez] PHST- 2019/12/31 06:00 [pubmed] PHST- 2020/02/06 06:00 [medline] PHST- 2020/11/05 00:00 [pmc-release] AID - 10.1007/978-3-030-27378-1_50 [doi] PST - ppublish SO - Adv Exp Med Biol. 2019;1185:305-310. doi: 10.1007/978-3-030-27378-1_50.