chr20-13390456-CAG-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP6

The NM_017714.3(TASP1):​c.1171-6_1171-5del variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000303 in 1,442,464 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00030 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TASP1
NM_017714.3 splice_region, splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 1.59
Variant links:
Genes affected
TASP1 (HGNC:15859): (taspase 1) This gene encodes an endopeptidase that cleaves specific substrates following aspartate residues. The encoded protein undergoes posttranslational autoproteolytic processing to generate alpha and beta subunits, which reassemble into the active alpha2-beta2 heterotetramer. It is required to cleave MLL, a protein required for the maintenance of HOX gene expression, and TFIIA, a basal transcription factor. Alternatively spliced transcript variants have been described, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 20-13390456-CAG-C is Benign according to our data. Variant chr20-13390456-CAG-C is described in ClinVar as [Likely_benign]. Clinvar id is 3055272.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TASP1NM_017714.3 linkuse as main transcriptc.1171-6_1171-5del splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000337743.9 NP_060184.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TASP1ENST00000337743.9 linkuse as main transcriptc.1171-6_1171-5del splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_017714.3 ENSP00000338624 P1Q9H6P5-1
TASP1ENST00000480436.5 linkuse as main transcriptn.1242-6_1242-5del splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
1
AN:
151726
Hom.:
0
Cov.:
32
FAILED QC
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000303
AC:
437
AN:
1442464
Hom.:
0
AF XY:
0.000327
AC XY:
235
AN XY:
717662
show subpopulations
Gnomad4 AFR exome
AF:
0.000182
Gnomad4 AMR exome
AF:
0.000250
Gnomad4 ASJ exome
AF:
0.000545
Gnomad4 EAS exome
AF:
0.000335
Gnomad4 SAS exome
AF:
0.000177
Gnomad4 FIN exome
AF:
0.000748
Gnomad4 NFE exome
AF:
0.000289
Gnomad4 OTH exome
AF:
0.000353
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000659
AC:
1
AN:
151726
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74064
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
Asia WGS
AF:
0.00289
AC:
10
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

TASP1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 16, 2019This 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). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs745426610; hg19: chr20-13371103; API