chrX-141865475-G-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_138702.1(MAGEC3):​c.128G>T​(p.Arg43Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,094,307 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. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 22)
Exomes 𝑓: 0.0000055 ( 0 hom. 6 hem. )

Consequence

MAGEC3
NM_138702.1 missense

Scores

2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.257
Variant links:
Genes affected
MAGEC3 (HGNC:23798): (MAGE family member C3) This gene is a member of the MAGEC gene family. The members of this family are not expressed in normal tissues, except for testis, and are expressed in tumors of various histological types. The MAGEC genes are clustered on chromosome Xq26-q27. Two transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.05663851).
BS2
High Hemizygotes in GnomAdExome4 at 6 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MAGEC3NM_138702.1 linkuse as main transcriptc.128G>T p.Arg43Leu missense_variant 2/8 ENST00000298296.1 NP_619647.1 Q8TD91-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MAGEC3ENST00000298296.1 linkuse as main transcriptc.128G>T p.Arg43Leu missense_variant 2/81 NM_138702.1 ENSP00000298296.1 Q8TD91-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD3 exomes
AF:
0.0000168
AC:
3
AN:
178736
Hom.:
0
AF XY:
0.0000473
AC XY:
3
AN XY:
63412
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:
0.000165
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000548
AC:
6
AN:
1094307
Hom.:
0
Cov.:
30
AF XY:
0.0000167
AC XY:
6
AN XY:
360057
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:
0.000112
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
22
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
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 31, 2024The c.128G>T (p.R43L) alteration is located in exon 2 (coding exon 2) of the MAGEC3 gene. This alteration results from a G to T substitution at nucleotide position 128, causing the arginine (R) at amino acid position 43 to be replaced by a leucine (L). 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
0.17
BayesDel_addAF
Benign
-0.72
T
BayesDel_noAF
Benign
-1.0
CADD
Benign
2.6
DANN
Benign
0.94
DEOGEN2
Benign
0.0048
T
FATHMM_MKL
Benign
0.0065
N
LIST_S2
Benign
0.30
T
M_CAP
Benign
0.0069
T
MetaRNN
Benign
0.057
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.0
N
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-0.52
N
REVEL
Benign
0.085
Sift
Uncertain
0.0050
D
Sift4G
Uncertain
0.020
D
Polyphen
0.10
B
Vest4
0.032
MutPred
0.17
Gain of loop (P = 0.0097);
MVP
0.11
MPC
0.022
ClinPred
0.050
T
GERP RS
0.12
Varity_R
0.083
gMVP
0.027

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.

Other links and lift over

dbSNP: rs759399130; hg19: chrX-140953261; COSMIC: COSV100025702; API