NM_018100.4:c.1768G>C

Variant names:

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_018100.4(EFHC1):c.1768G>C(p.Ala590Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000638 in 1,614,060 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

EFHC1
NM_018100.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.22

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.060839444).

BS2

High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EFHC1	NM_018100.4 link	c.1768G>C	p.Ala590Pro	missense_variant	Exon 10 of 11	ENST00000371068.11	NP_060570.2	Q5JVL4-1B2CKC5
EFHC1	NM_001172420.2 link	c.1711G>C	p.Ala571Pro	missense_variant	Exon 11 of 12		NP_001165891.1	Q5JVL4-3B2CKC5
EFHC1	NR_033327.2 link	n.3094G>C		non_coding_transcript_exon_variant	Exon 9 of 10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EFHC1	ENST00000371068.11 link	c.1768G>C	p.Ala590Pro	missense_variant	Exon 10 of 11	1	NM_018100.4	ENSP00000360107.4		Q5JVL4-1

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000176

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000597

AC:

AN:

251256

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135794

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000132

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000623

AC:

AN:

1461824

Hom.:

Cov.:

AF XY:

0.0000536

AC XY:

AN XY:

727224

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000809

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000135

Hom.:

Bravo

AF:

0.0000604

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Absence seizure;C1850778:Myoclonic epilepsy, juvenile, susceptibility to, 1

Uncertain:2

Oct 07, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Apr 04, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with EFHC1-related disease. This variant is present in population databases (rs749376467, ExAC 0.003%). This sequence change replaces alanine with proline at codon 590 of the EFHC1 protein (p.Ala590Pro). The alanine residue is weakly conserved and there is a small physicochemical difference between alanine and proline. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.096

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

Eigen

Benign

-0.52

Eigen_PC

Benign

-0.49

FATHMM_MKL

Benign

0.079

LIST_S2

Benign

0.85

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

M_CAP

Benign

0.0075

MetaRNN

Benign

0.061

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

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

.;.;L;.;.;.;.;.;.;.

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.71

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

REVEL

Benign

0.051

Sift

Benign

0.26

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

Sift4G

Benign

0.26

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

Polyphen

0.13

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

Vest4

0.29, 0.43

MutPred

0.37

.;.;Gain of methylation at K588 (P = 0.0391);Gain of methylation at K588 (P = 0.0391);Gain of methylation at K588 (P = 0.0391);.;Gain of methylation at K588 (P = 0.0391);.;.;.;

MVP

0.44

MPC

0.18

ClinPred

0.053

GERP RS

2.8

Varity_R

0.15

gMVP

0.41

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