Genetic Variant NM_004434.3:c.412C>G (chr14-99878513-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004434.3(EML1):c.412C>G(p.Arg138Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,630 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

EML1
NM_004434.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.594

Publications

0 publications found

Variant links:

Genes affected

EML1 (HGNC:3330): (EMAP like 1) Human echinoderm microtubule-associated protein-like is a strong candidate for the Usher syndrome type 1A gene. Usher syndromes (USHs) are a group of genetic disorders consisting of congenital deafness, retinitis pigmentosa, and vestibular dysfunction of variable onset and severity depending on the genetic type. The disease process in USHs involves the entire brain and is not limited to the posterior fossa or auditory and visual systems. The USHs are catagorized as type I (USH1A, USH1B, USH1C, USH1D, USH1E and USH1F), type II (USH2A and USH2B) and type III (USH3). The type I is the most severe form. Gene loci responsible for these three types are all mapped. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

EML1 Gene-Disease associations (from GenCC):

band heterotopia of brain
Inheritance: AR Classification: STRONG, MODERATE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
subcortical band heterotopia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

EML1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12491384).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EML1	NM_004434.3 link	c.412C>G	p.Arg138Gly	missense_variant	Exon 4 of 22	ENST00000262233.11	NP_004425.2	O00423-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EML1	ENST00000262233.11 link	c.412C>G	p.Arg138Gly	missense_variant	Exon 4 of 22	1	NM_004434.3	ENSP00000262233.7		O00423-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461630

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727114

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33462

American (AMR)

AF:

0.00

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86212

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111872

Other (OTH)

AF:

0.00

AC:

AN:

60386

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.39

CADD

Benign

(source)

DANN

Benign

0.86

DEOGEN2

Benign

0.022

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

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.77

FATHMM_MKL

Benign

0.36

LIST_S2

Uncertain

0.89

D;D;D;D;D;D;D;D;D

M_CAP

Benign

0.025

MetaRNN

Benign

0.10

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

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.4

.;.;.;.;.;M;.;.;.

PhyloP100

0.59

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-2.1

N;D;N;.;D;N;N;N;D

REVEL

Benign

0.063

Sift

Benign

0.11

T;D;D;.;D;D;D;T;D

Sift4G

Benign

0.11

T;D;T;.;D;T;T;T;D

Polyphen

0.60, 0.63, 0.66

.;.;P;.;.;P;P;.;.

Vest4

0.41, 0.53, 0.42

MutPred

0.41

.;.;.;.;.;Loss of sheet (P = 0.0084);.;.;.;

MVP

0.068

MPC

1.5

ClinPred

0.39

GERP RS

1.2

Varity_R

0.097

gMVP

0.22

Mutation Taster

=88/12

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

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NM_004434.3:c.412C>G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over