chr17-46010405-G-A

Variant names:

• chr17-46010405-G-A
• rs63750013
• NM_001377265.1:c.2091+3G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 10P and 1B. PM2 PP5_Very_Strong BP4

The NM_001377265.1(MAPT):​c.2091+3G>A variant causes a splice region, intron change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: MAPT NM_001377265.1 splice_region, intron
• Scores: Splicing: ADA: 0.07189
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:3 O:1
• Conservation: PhyloP100: 5.33
• Publications: 5 publications found

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]

MAPT Gene-Disease associations (from GenCC):

• late-onset Parkinson disease

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

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• semantic dementia

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• supranuclear palsy, progressive, 1

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
• progressive supranuclear palsy-parkinsonism syndrome

  Inheritance: AR Classification: MODERATE, LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 17-46010405-G-A is Pathogenic according to our data. Variant chr17-46010405-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 98218.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.32). . Strength limited to SUPPORTING due to the PP5.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001377265.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAPT	NM_001377265.1	MANE Select	c.2091+3G>A		splice_region intron	N/A	NP_001364194.1	A0A7I2PJZ2
	MAPT	NM_001123066.4		c.1920+3G>A		splice_region intron	N/A	NP_001116538.2	P10636-9
	MAPT	NM_016835.5		c.1866+3G>A		splice_region intron	N/A	NP_058519.3	P10636-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAPT	ENST00000262410.10	TSL:1 MANE Select	c.2091+3G>A		splice_region intron	N/A	ENSP00000262410.6	A0A7I2PJZ2
	MAPT	ENST00000344290.10	TSL:1	c.1801-3838G>A		intron	N/A	ENSP00000340820.6	A0A7I2PLE3
	MAPT	ENST00000351559.10	TSL:1	c.915+3G>A		splice_region intron	N/A	ENSP00000303214.7	P10636-8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1411796 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 697870

African (AFR) AF: 0.00 AC: 0 AN: 32634

American (AMR) AF: 0.00 AC: 0 AN: 37584

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25296

East Asian (EAS) AF: 0.00 AC: 0 AN: 37852

South Asian (SAS) AF: 0.00 AC: 0 AN: 80214

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50312

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5710

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1083636

Other (OTH) AF: 0.00 AC: 0 AN: 58558

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	not provided (3)
1	-	-	Frontotemporal dementia (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.32
CADD	Benign	22
DANN	Benign	0.97
PhyloP100		5.3
Mutation Taster		=7/93	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.072
dbscSNV1_RF	Benign	0.38
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: rs63750013; hg19: chr17-44087771;