Mutations

SORL1 R1390G

Overview

Clinical Phenotype: Alzheimer's Disease
Position: (GRCh38/hg38):Chr11:121590129 A>G
Position: (GRCh37/hg19):Chr11:121460838 A>G
dbSNP ID: rs535522154
Coding/Non-Coding: Coding
DNA Change: Substitution
Expected Protein Consequence: Missense
Codon Change: AGG to GGG
Reference Isoform: SORL1 Isoform 1 (2214 aa)
Genomic Region: Exon 30

Findings

In a study that included 15,808 Alzheimer’s cases and 16,097 control subjects from multiple European and American cohorts, this allele was observed nine times—twice among the AD cases and seven times among the controls (Holstege et al., 2022). A mega-analysis of these data did not find an association between the variant and AD risk.

Previously, the R1390G variant was found in one of 676 controls and none of 332 Alzheimer’s cases in a cohort of Caucasian subjects from Britain and North America (Sassi et al., 2016).

This variant also was reported in one of 4491 controls, but none of 5198 AD cases, in a dataset from the Alzheimer’s Disease Sequencing Project (ADSP), consisting of subjects of non-Hispanic Caucasian ancestry from whom whole-exome sequencing data were available (Campion et al., 2019). The ADSP contributed data to the 2022 study cited above.

Functional Consequences

The variant was predicted to be tolerated by SIFT and benign by PolyPhen-2, and it was classified as a polymorphism by Mutation Taster (Sassi et al., 2016).

Last Updated: 18 Jul 2024

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References

Paper Citations

  1. . Exome sequencing identifies rare damaging variants in ATP8B4 and ABCA1 as risk factors for Alzheimer's disease. Nat Genet. 2022 Dec;54(12):1786-1794. Epub 2022 Nov 21 PubMed.
  2. . Influence of Coding Variability in APP-Aβ Metabolism Genes in Sporadic Alzheimer's Disease. PLoS One. 2016;11(6):e0150079. Epub 2016 Jun 1 PubMed.
  3. . SORL1 genetic variants and Alzheimer disease risk: a literature review and meta-analysis of sequencing data. Acta Neuropathol. 2019 Aug;138(2):173-186. Epub 2019 Mar 25 PubMed.

Further Reading

No Available Further Reading

Protein Diagram

Primary Papers

  1. . Influence of Coding Variability in APP-Aβ Metabolism Genes in Sporadic Alzheimer's Disease. PLoS One. 2016;11(6):e0150079. Epub 2016 Jun 1 PubMed.

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