rs367645069
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Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_000447.3(PSEN2):c.66G>A(p.Ser22=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 1,613,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000099 ( 0 hom. )
Consequence
PSEN2
NM_000447.3 synonymous
NM_000447.3 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -1.62
Genes affected
PSEN2 (HGNC:9509): (presenilin 2) Alzheimer's disease (AD) patients with an inherited form of the disease carry mutations in the presenilin proteins (PSEN1 or PSEN2) or the amyloid precursor protein (APP). These disease-linked mutations result in increased production of the longer form of amyloid-beta (main component of amyloid deposits found in AD brains). Presenilins are postulated to regulate APP processing through their effects on gamma-secretase, an enzyme that cleaves APP. Also, it is thought that the presenilins are involved in the cleavage of the Notch receptor such that, they either directly regulate gamma-secretase activity, or themselves act are protease enzymes. Two alternatively spliced transcript variants encoding different isoforms of PSEN2 have been identified. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -21 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.85).
BP6
Variant 1-226881973-G-A is Benign according to our data. Variant chr1-226881973-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 448150.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.62 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000164 (25/152168) while in subpopulation NFE AF= 0.000323 (22/68028). AF 95% confidence interval is 0.000218. There are 0 homozygotes in gnomad4. There are 9 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 25 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PSEN2 | NM_000447.3 | c.66G>A | p.Ser22= | synonymous_variant | 4/13 | ENST00000366783.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PSEN2 | ENST00000366783.8 | c.66G>A | p.Ser22= | synonymous_variant | 4/13 | 5 | NM_000447.3 | P4 |
Frequencies
GnomAD3 genomes AF: 0.000164 AC: 25AN: 152168Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000835 AC: 21AN: 251380Hom.: 0 AF XY: 0.0000736 AC XY: 10AN XY: 135904
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GnomAD4 exome AF: 0.0000992 AC: 145AN: 1461776Hom.: 0 Cov.: 31 AF XY: 0.0000866 AC XY: 63AN XY: 727200
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GnomAD4 genome AF: 0.000164 AC: 25AN: 152168Hom.: 0 Cov.: 33 AF XY: 0.000121 AC XY: 9AN XY: 74328
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ClinVar
Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Athena Diagnostics | May 23, 2017 | - - |
PSEN2-related disorder Benign:1
Likely benign, no assertion criteria provided | clinical testing | PreventionGenetics, part of Exact Sciences | Oct 19, 2021 | This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). - |
Alzheimer disease 4 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | May 23, 2023 | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at