rs771340492

Variant names:

• chr20-13435050-G-A
• rs771340492
• NM_017714.3:c.1090C>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_017714.3(TASP1):​c.1090C>T​(p.Leu364Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,076 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: TASP1 NM_017714.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.88
• Publications: 2 publications found

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]

TASP1 Gene-Disease associations (from GenCC):

• Suleiman-El-Hattab syndrome

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017714.3. 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
	TASP1	NM_017714.3	MANE Select	c.1090C>T	p.Leu364Phe	missense	Exon 12 of 14	NP_060184.2	Q9H6P5-1
	TASP1	NM_001323603.2		c.784C>T	p.Leu262Phe	missense	Exon 13 of 15	NP_001310532.1
	TASP1	NM_001323604.2		c.784C>T	p.Leu262Phe	missense	Exon 13 of 15	NP_001310533.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TASP1	ENST00000337743.9	TSL:1 MANE Select	c.1090C>T	p.Leu364Phe	missense	Exon 12 of 14	ENSP00000338624.4	Q9H6P5-1
	TASP1	ENST00000961261.1		c.1180C>T	p.Leu394Phe	missense	Exon 12 of 14	ENSP00000631320.1
	TASP1	ENST00000861004.1		c.1090C>T	p.Leu364Phe	missense	Exon 13 of 15	ENSP00000531063.1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152076 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000407 AC: 1 AN: 245812 AF XY: 0.00

Gnomad AFR exome AF: 0.0000627

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1456590 Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0 AN XY: 724380

African (AFR) AF: 0.00 AC: 0 AN: 33348

American (AMR) AF: 0.00 AC: 0 AN: 44310

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26034

East Asian (EAS) AF: 0.00 AC: 0 AN: 39490

South Asian (SAS) AF: 0.00 AC: 0 AN: 85238

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53278

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5742

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1108982

Other (OTH) AF: 0.00 AC: 0 AN: 60168

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152076 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74256

African (AFR) AF: 0.0000241 AC: 1 AN: 41408

American (AMR) AF: 0.00 AC: 0 AN: 15262

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10582

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68020

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.0000329 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.014	T
BayesDel_noAF	Uncertain	-0.070
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.28	T
Eigen	Benign	0.054
Eigen_PC	Benign	0.18
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.068	D
MetaRNN	Uncertain	0.45	T
MetaSVM	Uncertain	0.12	D
MutationAssessor	Benign	1.6	L
PhyloP100		2.9
PrimateAI	Uncertain	0.67	T
PROVEAN	Benign	-0.60	N
REVEL	Uncertain	0.34
Sift	Benign	0.21	T
Sift4G	Benign	0.72	T
Polyphen		0.43	B
Vest4		0.58
MVP		0.45
MPC		0.60
ClinPred		0.37	T
GERP RS		4.9
Varity_R		0.20
gMVP		0.54
Mutation Taster		=61/39	polymorphism

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

Other links and lift over

dbSNP: rs771340492; hg19: chr20-13415697; COSMIC: COSV61816065;