NM_177433.3:c.344C>A

Variant names:

• chrX-54810020-C-A
• rs371162915
• NM_177433.3:c.344C>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_177433.3(MAGED2):​c.344C>A​(p.Ala115Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000448 in 1,205,361 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 12 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A115P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000045 (0 hom., 0 hem., cov: 22)
  • Exomes 𝑓: 0.000045 (0 hom. 12 hem.)
• Consequence: MAGED2 NM_177433.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.763
• Publications: 0 publications found

Genes affected

MAGED2 (HGNC:16353): (MAGE family member D2) This gene is a member of the MAGED gene family. The MAGED genes are clustered on chromosome Xp11. This gene is located in Xp11.2, a hot spot for X-linked intellectual disability (XLID). Mutations in this gene cause a form of transient antenatal Bartter's syndrome. This gene may also be involved in several types of cancer, including breast cancer and melanoma. The protein encoded by this gene is progressively recruited from the cytoplasm to the nucleoplasm during the interphase and after nucleolar stress and is thus thought to play a role in cell cycle regulation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2017]

MAGED2 Gene-Disease associations (from GenCC):

• Bartter disease type 5

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
• antenatal Bartter syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.13151681).
• BS2: High Hemizygotes in GnomAdExome4 at 12 XL,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_177433.3. 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
	MAGED2	NM_177433.3	MANE Select	c.344C>A	p.Ala115Asp	missense	Exon 3 of 13	NP_803182.1	Q9UNF1-1
	MAGED2	NM_014599.6		c.344C>A	p.Ala115Asp	missense	Exon 3 of 13	NP_055414.2
	MAGED2	NM_201222.3		c.344C>A	p.Ala115Asp	missense	Exon 3 of 13	NP_957516.1	Q9UNF1-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MAGED2	ENST00000375068.6	TSL:1 MANE Select	c.344C>A	p.Ala115Asp	missense	Exon 3 of 13	ENSP00000364209.1	Q9UNF1-1
	MAGED2	ENST00000375053.6	TSL:1	c.344C>A	p.Ala115Asp	missense	Exon 3 of 12	ENSP00000364193.2	Q9UNF1-1
	MAGED2	ENST00000375058.5	TSL:1	c.344C>A	p.Ala115Asp	missense	Exon 3 of 13	ENSP00000364198.1	Q9UNF1-1

Frequencies

GnomAD3 genomes AF: 0.0000452 AC: 5 AN: 110722 Hom.: 0 Cov.: 22

Gnomad AFR AF: 0.0000329

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: 0.0000758

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000116 AC: 2 AN: 173089 AF XY: 0.00

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000262

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000448 AC: 49 AN: 1094639 Hom.: 0 Cov.: 33 AF XY: 0.0000333 AC XY: 12 AN XY: 360519

African (AFR) AF: 0.00 AC: 0 AN: 26374

American (AMR) AF: 0.00 AC: 0 AN: 34864

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19279

East Asian (EAS) AF: 0.00 AC: 0 AN: 30162

South Asian (SAS) AF: 0.00 AC: 0 AN: 53494

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40180

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4131

European-Non Finnish (NFE) AF: 0.0000571 AC: 48 AN: 840182

Other (OTH) AF: 0.0000218 AC: 1 AN: 45973

GnomAD4 genome AF: 0.0000452 AC: 5 AN: 110722 Hom.: 0 Cov.: 22 AF XY: 0.00 AC XY: 0 AN XY: 32898

African (AFR) AF: 0.0000329 AC: 1 AN: 30375

American (AMR) AF: 0.00 AC: 0 AN: 10509

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 2632

East Asian (EAS) AF: 0.00 AC: 0 AN: 3528

South Asian (SAS) AF: 0.00 AC: 0 AN: 2481

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 5988

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 238

European-Non Finnish (NFE) AF: 0.0000758 AC: 4 AN: 52797

Other (OTH) AF: 0.00 AC: 0 AN: 1497

Alfa AF: 0.0000434 Hom.: 0

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000149 AC: 1

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.35	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Benign	0.057	T
FATHMM_MKL	Benign	0.66	D
LIST_S2	Benign	0.76	T
M_CAP	Uncertain	0.27	D
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.97	L
PhyloP100		0.76
PrimateAI	Benign	0.34	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.0090
Sift	Uncertain	0.0010	D
Sift4G	Benign	0.25	T
Polyphen		0.50	P
Vest4		0.28
MVP		0.22
MPC		1.1
ClinPred		0.14	T
GERP RS		2.6
Varity_R		0.49
gMVP		0.11
Mutation Taster		=97/3	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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

dbSNP: rs371162915; hg19: chrX-54836453;