rs765612638

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_177404.3(MAGEB1):​c.88G>A​(p.Ala30Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000191 in 1,206,834 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 6 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/21 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: 24)
Exomes 𝑓: 0.000020 ( 0 hom. 6 hem. )

Consequence

MAGEB1
NM_177404.3 missense

Scores

4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.713

Publications

0 publications found
Variant links:
Genes affected
MAGEB1 (HGNC:6808): (MAGE family member B1) This gene is a member of the MAGEB gene family. The members of this family have their entire coding sequences located in the last exon, and the encoded proteins show 50 to 68% sequence identity to each other. The promoters and first exons of the MAGEB genes show considerable variability, suggesting that the existence of this gene family enables the same function to be expressed under different transcriptional controls. This gene is localized in the DSS (dosage-sensitive sex reversal) critical region, and expressed in testis and in a significant fraction of tumors of various histological types. This gene and other MAGEB members are clustered on chromosome Xp22-p21. Multiple alternatively spliced transcript variants encoding the same protein have been found for this gene, however, the full length nature of some variants has not been defined. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (MetaRNN=0.16986296).
BS2
High Hemizygotes in GnomAdExome4 at 6 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MAGEB1NM_177404.3 linkc.88G>A p.Ala30Thr missense_variant Exon 2 of 2 ENST00000397548.4 NP_796379.1 P43366
MAGEB1NM_002363.5 linkc.88G>A p.Ala30Thr missense_variant Exon 4 of 4 NP_002354.2 P43366
MAGEB1NM_177415.3 linkc.88G>A p.Ala30Thr missense_variant Exon 3 of 3 NP_803134.1 P43366

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MAGEB1ENST00000397548.4 linkc.88G>A p.Ala30Thr missense_variant Exon 2 of 2 1 NM_177404.3 ENSP00000380681.2 P43366
MAGEB1ENST00000378981.8 linkc.88G>A p.Ala30Thr missense_variant Exon 4 of 4 1 ENSP00000368264.3 P43366
MAGEB1ENST00000397550.6 linkc.88G>A p.Ala30Thr missense_variant Exon 3 of 3 1 ENSP00000380683.1 P43366

Frequencies

GnomAD3 genomes
AF:
0.00000887
AC:
1
AN:
112723
Hom.:
0
Cov.:
24
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000583
AC:
1
AN:
171430
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000201
AC:
22
AN:
1094111
Hom.:
0
Cov.:
30
AF XY:
0.0000167
AC XY:
6
AN XY:
359837
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26289
American (AMR)
AF:
0.00
AC:
0
AN:
34836
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19319
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30014
South Asian (SAS)
AF:
0.0000188
AC:
1
AN:
53300
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40300
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4126
European-Non Finnish (NFE)
AF:
0.0000250
AC:
21
AN:
839985
Other (OTH)
AF:
0.00
AC:
0
AN:
45942
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000887
AC:
1
AN:
112723
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
34887
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31041
American (AMR)
AF:
0.00
AC:
0
AN:
10760
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2657
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3566
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2713
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6246
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
240
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53291
Other (OTH)
AF:
0.00
AC:
0
AN:
1523
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Dec 04, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.88G>A (p.A30T) alteration is located in exon 4 (coding exon 1) of the MAGEB1 gene. This alteration results from a G to A substitution at nucleotide position 88, causing the alanine (A) at amino acid position 30 to be replaced by a threonine (T). 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
0.083
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
12
DANN
Uncertain
1.0
DEOGEN2
Benign
0.011
T;T;T
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.15
.;T;.
M_CAP
Benign
0.070
D
MetaRNN
Benign
0.17
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.3
M;M;M
PhyloP100
0.71
PrimateAI
Benign
0.31
T
PROVEAN
Uncertain
-3.3
D;D;D
REVEL
Benign
0.077
Sift
Benign
0.085
T;T;T
Sift4G
Uncertain
0.053
T;T;T
Polyphen
0.99
D;D;D
Vest4
0.029
MVP
0.33
MPC
0.23
ClinPred
0.77
D
GERP RS
4.0
Varity_R
0.24
gMVP
0.094
Mutation Taster
=95/5
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

Publications

Other links and lift over

dbSNP: rs765612638; hg19: chrX-30268698; COSMIC: COSV106552131; API