Genetic Variant MAGEE1:p.Ala20Val (chrX-76427989-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_020932.3(MAGEE1):c.59C>T(p.Ala20Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000415 in 1,205,510 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 25)

Exomes 𝑓: 0.0000037 ( 0 hom. 1 hem. )

Consequence

MAGEE1
NM_020932.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.98

Variant links:

Genes affected

MAGEE1 (HGNC:24934): (MAGE family member E1) This gene encodes an alpha-dystrobrevin-associated MAGE (melanoma-associated antigen) protein, which is a member of the MAGE family. The protein contains a nuclear localization signal in the N-terminus, 30 12-amino acid repeats beginning at nt 60 with the consensus sequence ASEGPSTSVLPT, and two MAGE domains in the C-terminus. It may play a signaling role in brain, muscle, and peripheral nerve. This gene is located on X chromosome in a region containing loci linked to cognitive disability. [provided by RefSeq, Mar 2010]

MAGEE1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06388751).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MAGEE1	NM_020932.3 link	c.59C>T	p.Ala20Val	missense_variant	Exon 1 of 1	ENST00000361470.4	NP_065983.1	Q9HCI5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MAGEE1	ENST00000361470.4 link	c.59C>T	p.Ala20Val	missense_variant	Exon 1 of 1	6	NM_020932.3	ENSP00000354912.2		Q9HCI5

Frequencies

GnomAD3 genomes

AF:

0.00000886

AC:

AN:

112929

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

35079

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:

0.0000187

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

167372

Hom.:

AF XY:

0.00

AC XY:

AN XY:

55906

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000382

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:

0.0000136

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000366

AC:

AN:

1092581

Hom.:

Cov.:

AF XY:

0.00000279

AC XY:

AN XY:

359065

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000289

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:

0.00000357

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000886

AC:

AN:

112929

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

35079

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:

0.0000187

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000826

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 06, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.59C>T (p.A20V) alteration is located in exon 1 (coding exon 1) of the MAGEE1 gene. This alteration results from a C to T substitution at nucleotide position 59, causing the alanine (A) at amino acid position 20 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.99

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.012

FATHMM_MKL

Benign

0.058

LIST_S2

Benign

0.56

M_CAP

Benign

0.0099

MetaRNN

Benign

0.064

MetaSVM

Benign

-0.94

MutationAssessor

Benign

1.5

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.47

REVEL

Benign

0.086

Sift

Benign

0.038

Sift4G

Benign

0.36

Polyphen

0.86

Vest4

0.058

MutPred

0.16

Gain of methylation at K17 (P = 0.0821);

MVP

0.068

MPC

0.48

ClinPred

0.045

GERP RS

-2.8

Varity_R

0.047

gMVP

0.24

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