Genetic Variant MICU3:p.Arg41Gln (chr8-17027401-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_181723.3(MICU3):c.122G>A(p.Arg41Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000797 in 1,429,994 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000059 ( 0 hom. )

Consequence

MICU3
NM_181723.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.03

Variant links:

Genes affected

MICU3 (HGNC:27820): (mitochondrial calcium uptake family member 3) Predicted to enable calcium ion binding activity. Predicted to be involved in calcium import into the mitochondrion and mitochondrial calcium ion homeostasis. Predicted to be located in mitochondrial inner membrane. Predicted to be part of uniplex complex. [provided by Alliance of Genome Resources, Apr 2022]

MICU3 links:

ENSG00000289225 (HGNC:):

ENSG00000289225 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=0.108236134).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MICU3	NM_181723.3 link	c.122G>A	p.Arg41Gln	missense_variant	Exon 1 of 15	ENST00000318063.10	NP_859074.1	Q86XE3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MICU3	ENST00000318063.10 link	c.122G>A	p.Arg41Gln	missense_variant	Exon 1 of 15	1	NM_181723.3	ENSP00000321455.5	Q86XE3
MICU3	ENST00000522235.5 link	n.-177G>A		upstream_gene_variant		5
ENSG00000289225	ENST00000691434.2 link	n.-206C>T		upstream_gene_variant

Frequencies

GnomAD3 genomes

AF:

0.000250

AC:

AN:

152074

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00183

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000109

AC:

AN:

91358

Hom.:

AF XY:

0.0000761

AC XY:

AN XY:

52580

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000678

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000623

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000595

AC:

AN:

1277920

Hom.:

Cov.:

AF XY:

0.0000636

AC XY:

AN XY:

628484

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000612

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:

0.0000591

Gnomad4 OTH exome

AF:

0.0000577

GnomAD4 genome

AF:

0.000250

AC:

AN:

152074

Hom.:

Cov.:

AF XY:

0.000310

AC XY:

AN XY:

74286

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00183

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.000344

ExAC

AF:

0.000102

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 19, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.122G>A (p.R41Q) alteration is located in exon 1 (coding exon 1) of the MICU3 gene. This alteration results from a G to A substitution at nucleotide position 122, causing the arginine (R) at amino acid position 41 to be replaced by a glutamine (Q). 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

0.11

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.011

Eigen

Benign

0.14

Eigen_PC

Benign

0.072

FATHMM_MKL

Benign

0.52

LIST_S2

Benign

0.74

M_CAP

Pathogenic

0.52

MetaRNN

Benign

0.11

MetaSVM

Benign

-0.95

MutationAssessor

Benign

0.34

PrimateAI

Uncertain

0.79

PROVEAN

Benign

-0.52

REVEL

Benign

0.088

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.98

Vest4

0.29

MVP

0.40

MPC

1.0

ClinPred

0.13

GERP RS

3.0

Varity_R

0.20

gMVP

0.22

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

Other links and lift over