Genetic Variant NM_018100.4:c.1155C>A (chr6-52469350-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_018100.4(EFHC1):c.1155C>A(p.Asn385Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,678 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. N385N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

EFHC1
NM_018100.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0900

Publications

3 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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018100.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
EFHC1	NM_018100.4	MANE Select	c.1155C>A	p.Asn385Lys	missense	Exon 7 of 11	NP_060570.2
EFHC1	NM_001172420.2		c.1098C>A	p.Asn366Lys	missense	Exon 8 of 12	NP_001165891.1
EFHC1	NR_033327.2		n.2481C>A		non_coding_transcript_exon	Exon 6 of 10

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
EFHC1	ENST00000371068.11	TSL:1 MANE Select	c.1155C>A	p.Asn385Lys	missense	Exon 7 of 11	ENSP00000360107.4
EFHC1	ENST00000637340.1	TSL:1	n.3080C>A		non_coding_transcript_exon	Exon 6 of 10
EFHC1	ENST00000637353.1	TSL:5	c.1155C>A	p.Asn385Lys	missense	Exon 7 of 11	ENSP00000490441.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461678

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727134

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39674

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111894

Other (OTH)

AF:

0.00

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

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.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.92

BayesDel_addAF

Benign

0.0030

BayesDel_noAF

Benign

-0.23

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.085

Eigen

Benign

-0.0031

Eigen_PC

Benign

-0.17

FATHMM_MKL

Uncertain

0.78

LIST_S2

Uncertain

0.97

M_CAP

Uncertain

0.17

MetaRNN

Uncertain

0.49

MetaSVM

Uncertain

-0.27

MutationAssessor

Pathogenic

3.7

PhyloP100

0.090

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-4.8

REVEL

Uncertain

0.38

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.0060

Polyphen

1.0

Vest4

0.90

MutPred

0.43

Gain of methylation at N385 (P = 0.0122)

MVP

0.80

MPC

0.50

ClinPred

0.99

GERP RS

-0.81

Varity_R

0.69

gMVP

0.77

Mutation Taster

=18/82

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over