Genetic Variant ETNK1:p.Ile191Val (chr12-22661076-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018638.5(ETNK1):c.571A>G(p.Ile191Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,456,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ETNK1
NM_018638.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.28

Publications

0 publications found

Variant links:

Genes affected

ETNK1 (HGNC:24649): (ethanolamine kinase 1) This gene encodes an ethanolamine kinase, which functions in the first committed step of the phosphatidylethanolamine synthesis pathway. This cytosolic enzyme is specific for ethanolamine and exhibits negligible kinase activity on choline. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

ETNK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.035467446).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ETNK1	NM_018638.5 link	c.571A>G	p.Ile191Val	missense_variant	Exon 4 of 8	ENST00000266517.9	NP_061108.3	Q9HBU6
ETNK1	XM_017019580.2 link	c.571A>G	p.Ile191Val	missense_variant	Exon 4 of 7		XP_016875069.2
ETNK1	XM_017019581.2 link	c.571A>G	p.Ile191Val	missense_variant	Exon 4 of 5		XP_016875070.2
ETNK1	XM_047429100.1 link	c.571A>G	p.Ile191Val	missense_variant	Exon 4 of 5		XP_047285056.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ETNK1	ENST00000266517.9 link	c.571A>G	p.Ile191Val	missense_variant	Exon 4 of 8	1	NM_018638.5	ENSP00000266517.4		A0A5K1VW28

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000406

AC:

AN:

246604

AF XY:

0.00000750

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.00000889

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1456998

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

724702

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33162

American (AMR)

AF:

0.00

AC:

AN:

43258

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26012

East Asian (EAS)

AF:

0.00

AC:

AN:

39488

South Asian (SAS)

AF:

0.00

AC:

AN:

84960

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53374

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1110790

Other (OTH)

AF:

0.00

AC:

AN:

60196

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 04, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.838A>G (p.I280V) alteration is located in exon 4 (coding exon 4) of the ETNK1 gene. This alteration results from a A to G substitution at nucleotide position 838, causing the isoleucine (I) at amino acid position 280 to be replaced by a valine (V). 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

0.074

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.56

CADD

Benign

(source)

DANN

Benign

0.84

DEOGEN2

Benign

0.0062

Eigen

Benign

-0.56

Eigen_PC

Benign

-0.36

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.68

M_CAP

Benign

0.0044

MetaRNN

Benign

0.035

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.070

PhyloP100

2.3

PrimateAI

Benign

0.42

PROVEAN

Benign

-0.14

REVEL

Benign

0.081

Sift

Benign

0.63

Sift4G

Benign

1.0

Polyphen

0.0010

Vest4

0.051

MutPred

0.48

Gain of catalytic residue at L277 (P = 0.0412);

MVP

0.17

MPC

0.55

ClinPred

0.13

GERP RS

2.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.028

gMVP

0.23

Mutation Taster

=89/11

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over