X-149884684-A-G

Variant names:

• chrX-149884684-A-G
• NM_005364.5:c.412A>G

Variant summary

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

The NM_005364.5(MAGEA8):​c.412A>G​(p.Met138Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 23)
• Consequence: MAGEA8 NM_005364.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.405
• Publications: 0 publications found

Genes affected

MAGEA8 (HGNC:6806): (MAGE family member A8) This gene is a member of the MAGEA gene family. The members of this family encode proteins with 50 to 80% sequence identity to each other. The promoters and first exons of the MAGEA genes show considerable variability, suggesting that the existence of this gene family enables the same function to be expressed under different transcriptional controls. The MAGEA genes are clustered at chromosomal location Xq28. They have been implicated in some hereditary disorders, such as dyskeratosis congenita. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Oct 2009]

MAGEA8-AS1 (HGNC:45093): (MAGEA8 antisense RNA 1)

ACMG classification

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_005364.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAGEA8	NM_005364.5	MANE Select	c.412A>G	p.Met138Val	missense	Exon 3 of 3	NP_005355.2
	MAGEA8	NM_001166400.2		c.412A>G	p.Met138Val	missense	Exon 4 of 4	NP_001159872.1	P43361
	MAGEA8	NM_001166401.2		c.412A>G	p.Met138Val	missense	Exon 3 of 3	NP_001159873.1	P43361

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAGEA8	ENST00000286482.6	TSL:1 MANE Select	c.412A>G	p.Met138Val	missense	Exon 3 of 3	ENSP00000286482.1	P43361
	MAGEA8	ENST00000535454.5	TSL:3	c.412A>G	p.Met138Val	missense	Exon 4 of 4	ENSP00000438293.1	P43361
	MAGEA8	ENST00000542674.5	TSL:3	c.412A>G	p.Met138Val	missense	Exon 3 of 3	ENSP00000443776.1	P43361

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 23

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.39
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	14
DANN	Benign	0.88
DEOGEN2	Benign	0.11	T
FATHMM_MKL	Benign	0.074	N
LIST_S2	Benign	0.78	T
M_CAP	Benign	0.0010	T
MetaRNN	Uncertain	0.56	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		0.41
PrimateAI	Uncertain	0.51	T
PROVEAN	Uncertain	-3.3	D
REVEL	Benign	0.069
Sift	Uncertain	0.0020	D
Sift4G	Benign	0.082	T
Polyphen		0.93	P
Vest4		0.41
MutPred		0.80		Gain of ubiquitination at K135 (P = 0.064)
MVP		0.29
MPC		0.37
ClinPred		0.83	D
GERP RS		0.96
Varity_R		0.64
gMVP		0.41
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

hg19: chrX-149013458;