chr10-72368235-G-A

Variant names:

• chr10-72368235-G-A
• NM_001195518.2:c.1391C>T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001195518.2(MICU1):​c.1391C>T​(p.Ala464Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. A464T) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 31)
• Consequence: MICU1 NM_001195518.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.97
• Publications: 0 publications found

Genes affected

MICU1 (HGNC:1530): (mitochondrial calcium uptake 1) This gene encodes an essential regulator of mitochondrial Ca2+ uptake under basal conditions. The encoded protein interacts with the mitochondrial calcium uniporter, a mitochondrial inner membrane Ca2+ channel, and is essential in preventing mitochondrial Ca2+ overload, which can cause excessive production of reactive oxygen species and cell stress. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Mar 2013]

MICU1 Gene-Disease associations (from GenCC):

• proximal myopathy with extrapyramidal signs

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, G2P

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MICU1	NM_001195518.2	c.1391C>T	p.Ala464Val	missense_variant	Exon 12 of 12	ENST00000361114.10	NP_001182447.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MICU1	ENST00000361114.10	c.1391C>T	p.Ala464Val	missense_variant	Exon 12 of 12	1	NM_001195518.2	ENSP00000354415.5

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Jan 30, 2024

Mayo Clinic Laboratories, Mayo Clinic

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PM2 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.35
BayesDel_addAF	Pathogenic	0.36	D
BayesDel_noAF	Pathogenic	0.28
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.44	.;T;.;T;.;.
Eigen	Uncertain	0.67
Eigen_PC	Pathogenic	0.75
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;D;D;D;D;D
M_CAP	Benign	0.058	D
MetaRNN	Uncertain	0.65	D;D;D;D;D;D
MetaSVM	Uncertain	-0.20	T
MutationAssessor	Benign	0.65	.;N;.;.;.;.
PhyloP100		10
PrimateAI	Uncertain	0.78	T
PROVEAN	Uncertain	-2.8	D;D;.;.;D;D
REVEL	Uncertain	0.45
Sift	Uncertain	0.0090	D;D;.;.;D;D
Sift4G	Uncertain	0.0060	D;D;.;D;D;D
Polyphen		1.0, 0.99	.;D;.;.;D;D
Vest4		0.74
MutPred		0.37		.;Loss of disorder (P = 0.0808);.;.;.;.;
MVP		0.70
MPC		0.80
ClinPred		0.96	D
GERP RS		5.9
Varity_R		0.64
gMVP		0.94
Mutation Taster		=46/54	disease causing

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

Other links and lift over

hg19: chr10-74127993;