Genetic Variant TASOR:p.Val1470Ala (chr3-56624553-A-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_001365635.2(TASOR):c.4409T>C(p.Val1470Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000496 in 1,614,044 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

TASOR
NM_001365635.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.52

Variant links:

Genes affected

TASOR (HGNC:30314): (transcription activation suppressor) Enables chromatin binding activity. Involved in negative regulation of single stranded viral RNA replication via double stranded DNA intermediate; protein localization to heterochromatin; and regulation of gene expression. Located in heterochromatin and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

TASOR links:

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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=0.23428756).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TASOR	NM_001365635.2 link	c.4409T>C	p.Val1470Ala	missense_variant	Exon 23 of 24	ENST00000683822.1	NP_001352564.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TASOR	ENST00000683822.1 link	c.4409T>C	p.Val1470Ala	missense_variant	Exon 23 of 24		NM_001365635.2	ENSP00000508241.1		Q9UK61-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD4 exome

AF:

0.00000410

AC:

AN:

1461812

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727206

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 27, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.4409T>C (p.V1470A) alteration is located in exon 23 (coding exon 23) of the FAM208A gene. This alteration results from a T to C substitution at nucleotide position 4409, causing the valine (V) at amino acid position 1470 to be replaced by an alanine (A). 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

BayesDel_addAF

Benign

-0.062

BayesDel_noAF

Benign

-0.33

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.033

.;.;.;T

Eigen

Benign

-0.18

Eigen_PC

Benign

-0.10

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.90

D;D;D;D

M_CAP

Benign

0.016

MetaRNN

Benign

0.23

T;T;T;T

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.47

PROVEAN

Benign

-0.15

N;N;N;.

REVEL

Benign

0.21

Sift

Benign

0.18

T;T;.;.

Sift4G

Uncertain

0.0060

D;D;D;D

Polyphen

0.94

P;B;B;.

Vest4

0.66

MutPred

0.22

.;Gain of catalytic residue at V1470 (P = 0.0904);.;.;

MVP

0.068

MPC

0.75

ClinPred

0.80

GERP RS

4.3

gMVP

0.60

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over