chr20-13435113-C-T

Position:

• chr20-13435113-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_017714.3(TASP1):​c.1027G>A​(p.Val343Met) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TASP1 NM_017714.3 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 5.75

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.813

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TASP1	NM_017714.3	c.1027G>A	p.Val343Met	missense_variant	12/14	ENST00000337743.9	NP_060184.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TASP1	ENST00000337743.9	c.1027G>A	p.Val343Met	missense_variant	12/14	1	NM_017714.3	ENSP00000338624	P1
TASP1	ENST00000465381.5	n.924G>A		non_coding_transcript_exon_variant	10/10	5
TASP1	ENST00000480436.5	n.1098G>A		non_coding_transcript_exon_variant	12/14	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, no assertion criteria provided

literature only

OMIM

Jul 28, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.66
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Uncertain	0.13
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.47	T
Eigen	Uncertain	0.47
Eigen_PC	Uncertain	0.42
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.96	D
M_CAP	Pathogenic	0.42	D
MetaRNN	Pathogenic	0.81	D
MetaSVM	Pathogenic	0.95	D
MutationAssessor	Uncertain	2.6	M
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.69	T
PROVEAN	Benign	-1.8	N
REVEL	Pathogenic	0.76
Sift	Uncertain	0.016	D
Sift4G	Uncertain	0.026	D
Polyphen		1.0	D
Vest4		0.67
MutPred		0.51		Loss of catalytic residue at V343 (P = 0.0219);
MVP		0.42
MPC		1.3
ClinPred		0.92	D
GERP RS		4.9
Varity_R		0.52
gMVP		0.80

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

Other links and lift over

dbSNP: rs2042956671; hg19: chr20-13415760;