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GeneBe

rs141636979

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6_Very_StrongBP7

The NM_001377265.1(MAPT):c.1938G>A(p.Lys646=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000102 in 1,613,888 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 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

MAPT
NM_001377265.1 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.85
Variant links:
Genes affected
MAPT (HGNC:6893): (microtubule associated protein tau) This gene encodes the microtubule-associated protein tau (MAPT) whose transcript undergoes complex, regulated alternative splicing, giving rise to several mRNA species. MAPT transcripts are differentially expressed in the nervous system, depending on stage of neuronal maturation and neuron type. MAPT gene mutations have been associated with several neurodegenerative disorders such as Alzheimer's disease, Pick's disease, frontotemporal dementia, cortico-basal degeneration and progressive supranuclear palsy. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.35).
BP6
Variant 17-45996604-G-A is Benign according to our data. Variant chr17-45996604-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 586135.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-45996604-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=1.85 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MAPTNM_001377265.1 linkuse as main transcriptc.1938G>A p.Lys646= synonymous_variant 9/13 ENST00000262410.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MAPTENST00000262410.10 linkuse as main transcriptc.1938G>A p.Lys646= synonymous_variant 9/131 NM_001377265.1 A2

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152206
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000842
AC:
21
AN:
249460
Hom.:
0
AF XY:
0.0000815
AC XY:
11
AN XY:
135012
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000143
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000105
AC:
153
AN:
1461682
Hom.:
0
Cov.:
54
AF XY:
0.000100
AC XY:
73
AN XY:
727130
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000150
Gnomad4 NFE exome
AF:
0.000126
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000115
Hom.:
0
Bravo
AF:
0.0000831
EpiCase
AF:
0.000327
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

MAPT-Related Spectrum Disorders Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaNov 14, 2017This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -
Frontotemporal dementia Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeNov 02, 2022- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsSep 28, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.35
Cadd
Benign
9.5
Dann
Benign
0.81

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs141636979; hg19: chr17-44073970; API