Mutations

SORL1 M556V

Overview

Clinical Phenotype: Alzheimer's Disease
Position: (GRCh38/hg38):Chr11:121532533 A>G
Position: (GRCh37/hg19):Chr11:121403242 A>G
dbSNP ID: rs373147483
Coding/Non-Coding: Coding
DNA Change: Substitution
Expected Protein Consequence: Missense
Codon Change: ATG to GTG
Reference Isoform: SORL1 Isoform 1 (2214 aa)
Genomic Region: Exon 12

Findings

The variant was found in three of 5198 Alzheimer's cases—one of whom was classified as early onset—and two of 4491 controls 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).

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

Functional Consequences

The M566V variant was predicted to be tolerated by SIFT, neutral by Mutation Taster, and benign by PolyPhen-2 (Campion et al., 2019).

Last Updated: 18 Jul 2024

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References

Paper Citations

  1. . 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.
  2. . 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.

Further Reading

No Available Further Reading

Protein Diagram

Primary Papers

  1. . 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.

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