Genetic Variant EFHC1:p.Ile174Val (chr6-52438538-A-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_018100.4(EFHC1):c.520A>G(p.Ile174Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,782 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as risk factor (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

EFHC1
NM_018100.4 missense

Scores

Clinical Significance

risk factor no assertion criteria provided O:1

Conservation

PhyloP100: 1.18

Publications

6 publications found

Variant links:

Genes affected

EFHC1 (HGNC:16406): (EF-hand domain containing 1) This gene encodes an EF-hand-containing calcium binding protein. The encoded protein likely plays a role in calcium homeostasis. Mutations in this gene have been associated with susceptibility to juvenile myoclonic epilepsy and juvenile absence epilepsy. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2010]

EFHC1 Gene-Disease associations (from GenCC):

juvenile myoclonic epilepsy
Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
epilepsy
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

EFHC1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2

High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
EFHC1	NM_018100.4 link	c.520A>G	p.Ile174Val	missense_variant	Exon 3 of 11	ENST00000371068.11	NP_060570.2
EFHC1	NM_001172420.2 link	c.463A>G	p.Ile155Val	missense_variant	Exon 4 of 12		NP_001165891.1
EFHC1	NR_033327.2 link	n.589A>G		non_coding_transcript_exon_variant	Exon 3 of 10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EFHC1	ENST00000371068.11 link	c.520A>G	p.Ile174Val	missense_variant	Exon 3 of 11	1	NM_018100.4	ENSP00000360107.4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251104

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000616

AC:

AN:

1461782

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727192

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000719

AC:

AN:

1111944

Other (OTH)

AF:

0.0000166

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: risk factor

Submissions summary: Other:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Absence seizure

Other:1

Dec 12, 2006

OMIM

Significance:risk factor

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.093

BayesDel_addAF

Uncertain

0.044

BayesDel_noAF

Benign

-0.18

CADD

Benign

(source)

DANN

Benign

0.84

DEOGEN2

Benign

0.0070

T;.;.;T;T;T;T;T;T;.;.;.;.

Eigen

Benign

-0.80

Eigen_PC

Benign

-0.62

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.95

D;D;.;D;D;D;D;D;D;D;.;D;D

M_CAP

Benign

0.0058

MetaRNN

Uncertain

0.48

T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.65

.;.;.;N;.;.;.;.;.;.;.;.;.

PhyloP100

1.2

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.46

.;.;.;N;.;.;.;.;.;.;.;.;N

REVEL

Uncertain

0.34

Sift

Benign

0.31

.;.;.;T;.;.;.;.;.;.;.;.;T

Sift4G

Benign

0.54

.;.;.;T;.;.;.;.;.;.;.;.;T

Polyphen

0.0010

.;.;.;B;.;.;.;.;.;.;.;.;.

Vest4

0.16, 0.16

MutPred

0.83

.;.;.;Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);.;Loss of sheet (P = 0.1158);.;.;.;

MVP

0.70

MPC

0.075

ClinPred

0.37

GERP RS

-1.8

PromoterAI

0.017

Neutral

(source)

Varity_R

0.029

gMVP

0.31

Mutation Taster

=30/70

disease causing

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over