rs118203891

Positions:

• chrM-5874-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP5

The ENST00000387409.1(MT-TY):​n.18A>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 (no stars).

• Frequency: Mitomap GenBank: Absent
• Consequence: MT-TY ENST00000387409.1 non_coding_transcript_exon
• Scores: Mitotip Uncertain 11
• Clinical Significance: Pathogenic no assertion criteria provided P:1 O:1 EXIT
• Conservation: PhyloP100: 1.61

Genes affected

MT-TY (HGNC:7502): (mitochondrially encoded tRNA tyrosine)

TRNY (HGNC:):

MT-CO1 (HGNC:7419): (mitochondrially encoded cytochrome c oxidase I) Contributes to cytochrome-c oxidase activity. Predicted to be involved in electron transport coupled proton transport and mitochondrial electron transport, cytochrome c to oxygen. Part of mitochondrial respiratory chain complex III and mitochondrial respiratory chain complex IV. [provided by Alliance of Genome Resources, Apr 2022]

MT-TC (HGNC:7477): (mitochondrially encoded tRNA cysteine)

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: No frequency data in Mitomap. Probably very rare.
• PP5: Variant M-5874-T-C is Pathogenic according to our data. Variant chrM-5874-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 9550.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRNY	TRNY.1	n.18A>G		non_coding_transcript_exon_variant	1/1
COX1	COX1.1			upstream_gene_variant
TRNC	TRNC.1			upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MT-TY	ENST00000387409.1	n.18A>G		non_coding_transcript_exon_variant	1/1
MT-CO1	ENST00000361624.2			upstream_gene_variant				P1
MT-TC	ENST00000387405.1			upstream_gene_variant

Frequencies

GnomAD4 exome Cov.: 0

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

Mitomap

EXIT

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1 Other:1

Revision: no assertion criteria provided

Submissions by phenotype

Exercise intolerance and complex III deficiency, somatic Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Oct 24, 2000

- -

not provided Other:1

not provided, no classification provided

phenotyping only

GenomeConnect, ClinGen

-

GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
Mitotip	Uncertain	11
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: rs118203891; hg19: chrM-5875;