chr14-73170486-A-G

Variant names:

• chr14-73170486-A-G
• rs362354
• NM_000021.4:c.88-311A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_000021.4(PSEN1):​c.88-311A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0146 in 152,356 control chromosomes in the GnomAD database, including 44 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.015 (44 hom., cov: 32)
• Consequence: PSEN1 NM_000021.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.116
• Publications: 1 publications found

Genes affected

PSEN1 (HGNC:9508): (presenilin 1) Alzheimer's disease (AD) patients with an inherited form of the disease carry mutations in the presenilin proteins (PSEN1; PSEN2) or in 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 are protease enzymes. Several alternatively spliced transcript variants encoding different isoforms have been identified for this gene, the full-length nature of only some have been determined. [provided by RefSeq, Aug 2008]

PSEN1 Gene-Disease associations (from GenCC):

• Alzheimer disease 3

  Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• Pick disease

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• semantic dementia

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• behavioral variant of frontotemporal dementia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• early-onset autosomal dominant Alzheimer disease

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• familial isolated dilated cardiomyopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• acne inversa, familial, 3

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
• dilated cardiomyopathy 1U

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
• dilated cardiomyopathy

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0146 (2228/152356) while in subpopulation AFR AF = 0.0482 (2004/41582). AF 95% confidence interval is 0.0464. There are 44 homozygotes in GnomAd4. There are 1067 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High AC in GnomAd4 at 2228 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000021.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PSEN1	NM_000021.4	MANE Select	c.88-311A>G		intron	N/A	NP_000012.1
	PSEN1	NM_007318.3		c.76-311A>G		intron	N/A	NP_015557.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PSEN1	ENST00000324501.10	TSL:1 MANE Select	c.88-311A>G		intron	N/A	ENSP00000326366.5
	PSEN1	ENST00000357710.8	TSL:1	c.76-311A>G		intron	N/A	ENSP00000350342.4
	PSEN1	ENST00000394164.5	TSL:1	c.76-311A>G		intron	N/A	ENSP00000377719.1

Frequencies

GnomAD3 genomes AF: 0.0146 AC: 2226 AN: 152238 Hom.: 44 Cov.: 32

Gnomad AFR AF: 0.0483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00602

Gnomad ASJ AF: 0.0219

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000382

Gnomad OTH AF: 0.0144

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0146 AC: 2228 AN: 152356 Hom.: 44 Cov.: 32 AF XY: 0.0143 AC XY: 1067 AN XY: 74508

African (AFR) AF: 0.0482 AC: 2004 AN: 41582

American (AMR) AF: 0.00601 AC: 92 AN: 15308

Ashkenazi Jewish (ASJ) AF: 0.0219 AC: 76 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000382 AC: 26 AN: 68038

Other (OTH) AF: 0.0142 AC: 30 AN: 2112

Alfa AF: 0.00495 Hom.: 0

Bravo AF: 0.0161

Asia WGS AF: 0.00346 AC: 12 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	0.73
DANN	Benign	0.56
PhyloP100		-0.12
Mutation Taster		=97/3	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs362354; hg19: chr14-73637194;