{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"bioRxiv"}],"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T13:43:16Z","timestamp":1790775796853,"version":"4.1.0"},"posted":{"date-parts":[[2023,7,3]]},"group-title":"Neuroscience","reference-count":75,"publisher":"openRxiv","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2023,11,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                <jats:p>\n                  The\n                  <jats:italic>SORL1<\/jats:italic>\n                  gene has recently emerged as a strong Alzheimer\u2019s Disease (AD) risk gene. Over 500 different variants have been identified in the gene and the contribution of individual variants to AD development and progression is still largely unknown. Here, we describe a family consisting of 2 parents and 5 offspring. Both parents were affected with dementia and one had confirmed AD pathology with an age of onset &gt;75 years. All offspring were affected with AD with ages at onset ranging from 53yrs-74yrs. DNA was available from the parent with confirmed AD and 5 offspring. We identified a coding variant, p.(Arg953Cys), in\n                  <jats:italic>SORL1<\/jats:italic>\n                  in 5 of 6 individuals affected by AD. Notably, variant carriers had severe AD pathology, and the\n                  <jats:italic>SORL1<\/jats:italic>\n                  variant segregated with TDP-43 pathology (LATE-NC). We further characterized this variant and show that this Arginine substitution occurs at a critical position in the YWTD-domain of the\n                  <jats:italic>SORL1<\/jats:italic>\n                  translation product, SORL1. Functional studies further show that the p.R953C variant leads to retention of the SORL1 protein in the endoplasmic reticulum which leads to decreased maturation and shedding of the receptor and prevents its normal endosomal trafficking. Together, our analysis suggests that p.R953C is a pathogenic variant of\n                  <jats:italic>SORL1<\/jats:italic>\n                  and sheds light on mechanisms of how missense\n                  <jats:italic>SORL1<\/jats:italic>\n                  variants may lead to AD.\n                <\/jats:p>","DOI":"10.1101\/2023.07.01.547348","type":"posted-content","created":{"date-parts":[[2023,7,3]],"date-time":"2023-07-03T19:15:34Z","timestamp":1688411734000},"source":"Crossref","is-referenced-by-count":3,"title":["A familial missense variant in the Alzheimer\u2019s Disease gene\n                  <i>SORL1<\/i>\n                  impairs its maturation and endosomal sorting"],"prefix":"10.64898","author":[{"given":"Elnaz","family":"Fazeli","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4309-0144","authenticated-orcid":false,"given":"Daniel 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