Variant 12-65278842-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000355192.8(MSRB3):c.74C>T(p.Ala25Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000354 in 1,412,264 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A25S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000035 ( 0 hom. )

Consequence

MSRB3
ENST00000355192.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.755

Variant links:

Genes affected

MSRB3 (HGNC:27375): (methionine sulfoxide reductase B3) The protein encoded by this gene catalyzes the reduction of methionine sulfoxide to methionine. This enzyme acts as a monomer and requires zinc as a cofactor. Several transcript variants encoding two different isoforms have been found for this gene. One of the isoforms localizes to mitochondria while the other localizes to endoplasmic reticula. [provided by RefSeq, Jul 2010]

MSRB3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17058602).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MSRB3	NM_001031679.3 linkuse as main transcript	c.-75C>T		5_prime_UTR_variant	1/7	ENST00000308259.10
MSRB3	NM_198080.4 linkuse as main transcript	c.74C>T	p.Ala25Val	missense_variant	1/6
MSRB3	NM_001193460.2 linkuse as main transcript	c.-239C>T		5_prime_UTR_variant	1/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MSRB3	ENST00000308259.10 linkuse as main transcript	c.-75C>T		5_prime_UTR_variant	1/7	1	NM_001031679.3	P1	Q8IXL7-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000354

AC:

AN:

1412264

Hom.:

Cov.:

AF XY:

0.00000573

AC XY:

AN XY:

697730

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000276

Gnomad4 OTH exome

AF:

0.0000341

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 26, 2022

The c.74C>T (p.A25V) alteration is located in exon 1 (coding exon 1) of the MSRB3 gene. This alteration results from a C to T substitution at nucleotide position 74, causing the alanine (A) at amino acid position 25 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

0.19

BayesDel_addAF

Benign

-0.090

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

T;T

Eigen

Benign

-0.86

Eigen_PC

Benign

-0.80

FATHMM_MKL

Benign

0.020

LIST_S2

Benign

0.46

T;T

M_CAP

Pathogenic

0.49

MetaRNN

Benign

0.17

T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.55

N;.

MutationTaster

Benign

1.0

N;N;N;N

PROVEAN

Benign

0.40

N;N

REVEL

Benign

0.13

Sift

Benign

0.59

T;T

Sift4G

Benign

0.40

T;T

Polyphen

0.0030

B;.

Vest4

0.22

MutPred

0.50

Gain of catalytic residue at S29 (P = 0);Gain of catalytic residue at S29 (P = 0);

MVP

0.35

MPC

0.42

ClinPred

0.18

GERP RS

2.7

Varity_R

0.044

gMVP

0.27

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

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