M-10450-A-G

Position:

• chrM-10450-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP3 PP5_Moderate

The ENST00000387439.1(MT-TR):​n.46A>G variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Mitomap GenBank: 𝑓 0.0 (AC: 0)
• Consequence: MT-TR ENST00000387439.1 non_coding_transcript_exon
• Scores: Mitotip Uncertain 15
• Clinical Significance: Pathogenic criteria provided, single submitter P:2 Combined-OXPHOS-defects-&-severe-multisystem-disorder
• Conservation: PhyloP100: 0.362

Genes affected

MT-TR (HGNC:7496): (mitochondrially encoded tRNA arginine)

TRNR (HGNC:):

MT-ND4L (HGNC:7460): (mitochondrially encoded NADH 4L dehydrogenase) Predicted to enable NADH dehydrogenase (ubiquinone) activity. Predicted to be located in mitochondrial inner membrane. Implicated in Leber hereditary optic neuropathy and diabetes mellitus. [provided by Alliance of Genome Resources, Apr 2022]

MT-ND3 (HGNC:7458): (mitochondrially encoded NADH dehydrogenase 3) Enables NADH dehydrogenase (ubiquinone) activity. Involved in mitochondrial electron transport, NADH to ubiquinone. Part of mitochondrial respiratory chain complex I. Implicated in Leber hereditary optic neuropathy; Leigh disease; and Parkinson's disease. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very low frequency in mitomap database: 0.0
• PP3: Mitotip and hmtvar scores support pathogenic criterium.
• PP5: Variant M-10450-A-G is Pathogenic according to our data. Variant chrM-10450-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 30000.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRNR	TRNR.1	n.46A>G		non_coding_transcript_exon_variant	1/1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MT-TR	ENST00000387439.1	n.46A>G		non_coding_transcript_exon_variant	1/1
MT-ND4L	ENST00000361335.1			upstream_gene_variant				P1
MT-ND3	ENST00000361227.2			downstream_gene_variant				P1

Frequencies

GnomAD4 exome Cov.: 0

We have no GnomAD4 genomes data on this position. Probably position not covered by the project.

Mitomap GenBank AF: 0.0 AC: 0

Mitomap

Combined-OXPHOS-defects-&-severe-multisystem-disorder

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Mitochondrial disease Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Mendelics

May 04, 2022

- -

Mitochondrial encephalomyopathy Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Mar 01, 2010

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
Mitotip	Uncertain	15
Hmtvar	Pathogenic	0.65

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs387906731; hg19: chrM-10451;