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GeneBe

20-13483309-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017714.3(TASP1):c.903A>G(p.Ile301Met) variant causes a missense change. The variant allele was found at a frequency of 0.00000208 in 1,444,956 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TASP1
NM_017714.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.46
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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.20691887).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TASP1NM_017714.3 linkuse as main transcriptc.903A>G p.Ile301Met missense_variant 11/14 ENST00000337743.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TASP1ENST00000337743.9 linkuse as main transcriptc.903A>G p.Ile301Met missense_variant 11/141 NM_017714.3 P1Q9H6P5-1
TASP1ENST00000455532.5 linkuse as main transcriptc.834A>G p.Ile278Met missense_variant 10/105
TASP1ENST00000465381.5 linkuse as main transcriptn.800A>G non_coding_transcript_exon_variant 9/105
TASP1ENST00000480436.5 linkuse as main transcriptn.974A>G non_coding_transcript_exon_variant 11/145

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000829
AC:
2
AN:
241204
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
130520
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000569
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000903
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000208
AC:
3
AN:
1444956
Hom.:
0
Cov.:
30
AF XY:
0.00000139
AC XY:
1
AN XY:
718166
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000257
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.07e-7
Gnomad4 OTH exome
AF:
0.0000168
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 13, 2021The c.903A>G (p.I301M) alteration is located in exon 11 (coding exon 10) of the TASP1 gene. This alteration results from a A to G substitution at nucleotide position 903, causing the isoleucine (I) at amino acid position 301 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.057
T
BayesDel_noAF
Benign
-0.14
Cadd
Benign
16
Dann
Benign
0.88
DEOGEN2
Benign
0.40
T;T
Eigen
Benign
0.043
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.21
T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
-1.8
N;.
MutationTaster
Benign
1.0
D;N
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
1.0
N;N
REVEL
Uncertain
0.29
Sift
Benign
0.45
T;T
Sift4G
Benign
0.39
T;.
Polyphen
0.0040
B;B
Vest4
0.38
MutPred
0.59
Gain of disorder (P = 0.1023);.;
MVP
0.16
MPC
0.53
ClinPred
0.22
T
GERP RS
5.7
Varity_R
0.54
gMVP
0.70

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: rs774788668; hg19: chr20-13463956; API