Genetic Variant TCEA3:p.Val323Met (chr1-23384417-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003196.3(TCEA3):c.967G>A(p.Val323Met) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000112 in 1,612,324 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

TCEA3
NM_003196.3 missense, splice_region

Scores

Splicing: ADA: 0.5316

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.17

Variant links:

Genes affected

TCEA3 (HGNC:11615): (transcription elongation factor A3) Predicted to enable DNA binding activity and zinc ion binding activity. Predicted to be involved in regulation of transcription, DNA-templated and transcription, DNA-templated. Predicted to be located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

TCEA3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TCEA3	NM_003196.3 link	c.967G>A	p.Val323Met	missense_variant, splice_region_variant	Exon 10 of 11	ENST00000450454.7	NP_003187.1	O75764-1B4DUM4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TCEA3	ENST00000450454.7 link	c.967G>A	p.Val323Met	missense_variant, splice_region_variant	Exon 10 of 11	1	NM_003196.3	ENSP00000406293.2		O75764-1
TCEA3	ENST00000476978.2 link	c.952G>A	p.Val318Met	missense_variant, splice_region_variant	Exon 10 of 11	3		ENSP00000474530.3		S4R3M9

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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

GnomAD3 exomes

AF:

0.0000161

AC:

AN:

247922

Hom.:

AF XY:

0.00000743

AC XY:

AN XY:

134516

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000884

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000887

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1460124

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

726252

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000900

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

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

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 08, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.967G>A (p.V323M) alteration is located in exon 10 (coding exon 10) of the TCEA3 gene. This alteration results from a G to A substitution at nucleotide position 967, causing the valine (V) at amino acid position 323 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

Pathogenic

0.77

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.26

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.066

T;.

Eigen

Benign

0.059

Eigen_PC

Benign

0.20

FATHMM_MKL

Uncertain

0.91

M_CAP

Benign

0.012

MetaRNN

Uncertain

0.45

T;T

MetaSVM

Benign

-0.76

MutationAssessor

Benign

-0.23

N;.

PrimateAI

Uncertain

0.79

PROVEAN

Uncertain

-2.5

D;.

REVEL

Benign

0.20

Sift

Benign

0.050

D;.

Sift4G

Uncertain

0.032

D;.

Polyphen

0.17

B;.

Vest4

0.32

MutPred

0.52

Gain of disorder (P = 0.0304);.;

MVP

0.22

MPC

0.39

ClinPred

0.43

GERP RS

4.3

Varity_R

0.37

gMVP

0.47

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.53

dbscSNV1_RF

Benign

0.41

SpliceAI score (max)

0.090

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