Mutations

SORL1 V324L

Overview

Clinical Phenotype: Alzheimer's Disease
Position: (GRCh38/hg38):Chr11:121513033 G>C
Position: (GRCh37/hg19):Chr11:121383742 G>C
dbSNP ID: rs541387363
Coding/Non-Coding: Coding
DNA Change: Substitution
Expected Protein Consequence: Missense
Codon Change: GTC to CTC
Reference Isoform: SORL1 Isoform 1 (2214 aa)
Genomic Region: Exon 7

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 five times—twice among the AD cases and three 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, in a study of 1255 cases and 1938 controls from seven European countries, a 79-year-old Belgian control subject was reported to be a heterozygous carrier of this variant, (Verheijen et al., 2016). In a Dutch sample of 640 AD cases and 1268 controls, one AD case and one control were heterozygous carriers of this variant (Holstege et al., 2017). The cohorts comprising this Dutch sample also contributed to the 2022 study cited above.

The variant is classified as likely benign by the criteria of Holstege et al. (Holstege et al., 2017).

Functional Consequences

This variant was predicted to be tolerated by SIFT, disease-causing by Mutation Taster, and probably damaging by PolyPhen-2 (Verheijen 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. . A comprehensive study of the genetic impact of rare variants in SORL1 in European early-onset Alzheimer's disease. Acta Neuropathol. 2016 Aug;132(2):213-24. Epub 2016 Mar 30 PubMed.
  3. . Characterization of pathogenic SORL1 genetic variants for association with Alzheimer's disease: a clinical interpretation strategy. Eur J Hum Genet. 2017 Aug;25(8):973-981. Epub 2017 May 24 PubMed.

Further Reading

No Available Further Reading

Protein Diagram

Primary Papers

  1. . A comprehensive study of the genetic impact of rare variants in SORL1 in European early-onset Alzheimer's disease. Acta Neuropathol. 2016 Aug;132(2):213-24. Epub 2016 Mar 30 PubMed.

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