chr20-13534015-T-C

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_017714.3(TASP1):​c.795+7A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0019 in 1,609,404 control chromosomes in the GnomAD database, including 9 homozygotes. 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 Benign (no stars).

Frequency

Genomes: 𝑓 0.0050 ( 4 hom., cov: 32)
Exomes 𝑓: 0.0016 ( 5 hom. )

Consequence

TASP1
NM_017714.3 splice_region, intron

Scores

2
Splicing: ADA: 0.0001110
2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.117
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 Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.7).
BP6
Variant 20-13534015-T-C is Benign according to our data. Variant chr20-13534015-T-C is described in ClinVar as [Benign]. Clinvar id is 3043220.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TASP1NM_017714.3 linkuse as main transcriptc.795+7A>G splice_region_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.795+7A>G splice_region_variant, intron_variant 1 NM_017714.3 ENSP00000338624 P1Q9H6P5-1
TASP1ENST00000455532.5 linkuse as main transcriptc.726+7A>G splice_region_variant, intron_variant 5 ENSP00000400580
TASP1ENST00000465381.5 linkuse as main transcriptn.692+7A>G splice_region_variant, intron_variant, non_coding_transcript_variant 5
TASP1ENST00000480436.5 linkuse as main transcriptn.879+7A>G splice_region_variant, intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.00494
AC:
752
AN:
152106
Hom.:
4
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0147
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00203
Gnomad ASJ
AF:
0.00230
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00128
Gnomad OTH
AF:
0.00527
GnomAD3 exomes
AF:
0.00211
AC:
520
AN:
246876
Hom.:
2
AF XY:
0.00176
AC XY:
235
AN XY:
133408
show subpopulations
Gnomad AFR exome
AF:
0.0159
Gnomad AMR exome
AF:
0.00153
Gnomad ASJ exome
AF:
0.00276
Gnomad EAS exome
AF:
0.000110
Gnomad SAS exome
AF:
0.000134
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00143
Gnomad OTH exome
AF:
0.00284
GnomAD4 exome
AF:
0.00158
AC:
2302
AN:
1457180
Hom.:
5
Cov.:
30
AF XY:
0.00154
AC XY:
1113
AN XY:
724818
show subpopulations
Gnomad4 AFR exome
AF:
0.0156
Gnomad4 AMR exome
AF:
0.00205
Gnomad4 ASJ exome
AF:
0.00278
Gnomad4 EAS exome
AF:
0.0000505
Gnomad4 SAS exome
AF:
0.000140
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00127
Gnomad4 OTH exome
AF:
0.00286
GnomAD4 genome
AF:
0.00499
AC:
760
AN:
152224
Hom.:
4
Cov.:
32
AF XY:
0.00476
AC XY:
354
AN XY:
74432
show subpopulations
Gnomad4 AFR
AF:
0.0149
Gnomad4 AMR
AF:
0.00203
Gnomad4 ASJ
AF:
0.00230
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00128
Gnomad4 OTH
AF:
0.00521
Alfa
AF:
0.00390
Hom.:
3
Bravo
AF:
0.00559
Asia WGS
AF:
0.00491
AC:
17
AN:
3478
EpiCase
AF:
0.00213
EpiControl
AF:
0.00238

ClinVar

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

Submissions by phenotype

TASP1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJan 27, 2020This variant is classified as 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
BayesDel_noAF
Benign
-0.70
CADD
Benign
4.7
DANN
Benign
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00011
dbscSNV1_RF
Benign
0.0060
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: rs77527408; hg19: chr20-13514662; API