17-43529905-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001079675.5(ETV4):c.934G>A(p.Val312Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000108 in 1,614,170 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V312L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.00013 (0 hom., cov: 31)
  • Exomes 𝑓: 0.00011 (0 hom.)
• Consequence: ETV4 NM_001079675.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.67

Genes affected

ETV4 (HGNC:3493): (ETS variant transcription factor 4) Enables DNA-binding transcription activator activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Involved in positive regulation of keratinocyte differentiation and positive regulation of transcription by RNA polymerase II. Located in chromosome and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

DHX8 (HGNC:2749): (DEAH-box helicase 8) This gene is a member of the DEAH box polypeptide family. The encoded protein contains the DEAH (Asp-Glu-Ala-His) motif which is characteristic of all DEAH box proteins, and is thought to function as an ATP-dependent RNA helicase that regulates the release of spliced mRNAs from spliceosomes prior to their export from the nucleus. This protein may be required for the replication of human immunodeficiency virus type 1 (HIV-1). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2014]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.045869768).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ETV4	NM_001079675.5	c.934G>A	p.Val312Ile	missense_variant	10/13	ENST00000319349.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ETV4	ENST00000319349.10	c.934G>A	p.Val312Ile	missense_variant	10/13	1	NM_001079675.5	P1

Frequencies

GnomAD3 genomes AF: 0.000131 AC: 20 AN: 152162 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.000169

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000835 AC: 21 AN: 251480 Hom.: 0 AF XY: 0.0000809 AC XY: 11 AN XY: 135908

Gnomad AFR exome AF: 0.000185

Gnomad AMR exome AF: 0.000116

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: 0.000123

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000106 AC: 155 AN: 1461890 Hom.: 0 Cov.: 32 AF XY: 0.0000990 AC XY: 72 AN XY: 727248

Gnomad4 AFR exome AF: 0.000209

Gnomad4 AMR exome AF: 0.000157

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000122

Gnomad4 OTH exome AF: 0.0000331

GnomAD4 genome AF: 0.000131 AC: 20 AN: 152280 Hom.: 0 Cov.: 31 AF XY: 0.000121 AC XY: 9 AN XY: 74474

Gnomad4 AFR AF: 0.000168

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000876 Hom.: 0

Bravo AF: 0.000140

ESP6500AA AF: 0.000227 AC: 1

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000576 AC: 7

EpiCase AF: 0.0000545

EpiControl AF: 0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 22, 2021

The c.934G>A (p.V312I) alteration is located in exon 10 (coding exon 9) of the ETV4 gene. This alteration results from a G to A substitution at nucleotide position 934, causing the valine (V) at amino acid position 312 to be replaced by an isoleucine (I). 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	0.076
BayesDel_addAF	Benign	-0.42	T
BayesDel_noAF	Benign	-0.56
Cadd	Benign	20
Dann	Uncertain	0.97
Eigen	Benign	-0.50
Eigen_PC	Benign	-0.43
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.90	D;.;.;.;D;D;D
M_CAP	Benign	0.0092	T
MetaRNN	Benign	0.046	T;T;T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-0.75	N;N;N;N;N;.;.
REVEL	Benign	0.040
Sift	Benign	0.073	T;T;T;T;T;.;.
Sift4G	Benign	0.11	T;T;T;T;T;T;T
Polyphen		0.054, 0.032	.;B;B;.;B;B;.
Vest4		0.12
MVP		0.33
MPC		0.25
ClinPred		0.086	T
GERP RS		1.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.042
gMVP		0.39

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs147888887; hg19: chr17-41607273;