dbSNP rs373800800: AMELX:p.Val94Met (chrX-11298683-G-A) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001142.2(AMELX):c.280G>A(p.Val94Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000397 in 1,208,188 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 13 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000064 ( 0 hom., 2 hem., cov: 21)

Exomes 𝑓: 0.000037 ( 0 hom. 11 hem. )

Consequence

AMELX
NM_001142.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.793

Variant links:

Genes affected

AMELX (HGNC:461): (amelogenin X-linked) This gene encodes a member of the amelogenin family of extracellular matrix proteins. Amelogenins are involved in biomineralization during tooth enamel development. Mutations in this gene cause X-linked amelogenesis imperfecta. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

AMELX links:

ARHGAP6 (HGNC:676): (Rho GTPase activating protein 6) This gene encodes a member of the rhoGAP family of proteins which play a role in the regulation of actin polymerization at the plasma membrane during several cellular processes. This protein is thought to have two independent functions, one as a GTPase-activating protein with specificity for RhoA, and another as a cytoskeletal protein that promotes actin remodeling. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ARHGAP6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.14093769).

BS2

High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AMELX	NM_001142.2 link	c.280G>A	p.Val94Met	missense_variant	Exon 5 of 6	ENST00000380714.7	NP_001133.1	Q99217-1
ARHGAP6	NM_013427.3 link	c.589-43976C>T		intron_variant	Intron 1 of 12	ENST00000337414.9	NP_038286.2	O43182-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AMELX	ENST00000380714.7 link	c.280G>A	p.Val94Met	missense_variant	Exon 5 of 6	1	NM_001142.2	ENSP00000370090.3		Q99217-1
ARHGAP6	ENST00000337414.9 link	c.589-43976C>T		intron_variant	Intron 1 of 12	1	NM_013427.3	ENSP00000338967.4		O43182-1

Frequencies

GnomAD3 genomes

AF:

0.0000637

AC:

AN:

109931

Hom.:

Cov.:

AF XY:

0.0000621

AC XY:

AN XY:

32207

show subpopulations

Gnomad AFR

AF:

0.0000665

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:

0.0000759

Gnomad OTH

AF:

0.000678

GnomAD3 exomes

AF:

0.0000272

AC:

AN:

183514

Hom.:

AF XY:

0.0000294

AC XY:

AN XY:

67940

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:

0.0000610

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000373

AC:

AN:

1098257

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

363611

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:

0.0000487

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000637

AC:

AN:

109931

Hom.:

Cov.:

AF XY:

0.0000621

AC XY:

AN XY:

32207

show subpopulations

Gnomad4 AFR

AF:

0.0000665

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:

0.0000759

Gnomad4 OTH

AF:

0.000678

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000718

ESP6500AA

AF:

0.000261

AC:

ESP6500EA

AF:

0.000149

AC:

ExAC

AF:

0.0000659

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jun 12, 2015

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Uncertain

0.44

.;T;.

FATHMM_MKL

Benign

0.50

LIST_S2

Benign

0.83

T;T;T

M_CAP

Benign

0.0066

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

.;L;.

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.72

N;N;N

REVEL

Benign

0.030

Sift

Benign

0.34

T;T;T

Sift4G

Benign

0.32

T;T;T

Polyphen

0.13

B;B;B

Vest4

0.34

MVP

0.90

MPC

0.23

ClinPred

0.062

GERP RS

3.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.077

gMVP

0.45

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