M-12010-C-A

Variant names:

• chrM-12010-C-A
• rs1057516066
• ENST00000361381.2:c.1251C>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP7

The ENST00000361381.2(MT-ND4):​c.1251C>A​(p.Gly417Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G417G) has been classified as Uncertain significance.

• Frequency: Mitomap GenBank: 𝑓 0.0 (AC: 0)
• Consequence: MT-ND4 ENST00000361381.2 synonymous
• Clinical Significance: Not reported in ClinVar No linked disesase in Mitomap
• Conservation: PhyloP100: -20.0
• Publications: 0 publications found

Genes affected

MT-ND4 (HGNC:7459): (mitochondrially encoded NADH dehydrogenase 4) Enables NADH dehydrogenase (ubiquinone) activity. Involved in mitochondrial electron transport, NADH to ubiquinone and mitochondrial respiratory chain complex I assembly. Part of mitochondrial respiratory chain complex I. Implicated in Leber hereditary optic neuropathy; Parkinson's disease; macular degeneration; and schizophrenia. Biomarker of Alzheimer's disease. [provided by Alliance of Genome Resources, Apr 2022]

TRNH (HGNC:7487): (mitochondrially encoded tRNA histidine)

TRNS2 (HGNC:7498): (mitochondrially encoded tRNA serine 2 (AGU/C))

TRNS2 Gene-Disease associations (from GenCC):

• mitochondrial disease

  Inheritance: Mitochondrial Classification: MODERATE Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very low frequency in mitomap database: 0.0
• BP7: Synonymous conserved (PhyloP=-20 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ND4	unassigned_transcript_4811	c.1251C>A	p.Gly417Gly	synonymous_variant	Exon 1 of 1
TRNH	unassigned_transcript_4812	c.-128C>A		upstream_gene_variant
TRNS2	unassigned_transcript_4813	c.-197C>A		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MT-ND4	ENST00000361381.2	c.1251C>A	p.Gly417Gly	synonymous_variant	Exon 1 of 1	6		ENSP00000354961.2
MT-TH	ENST00000387441.1	n.-128C>A		upstream_gene_variant		6
MT-TS2	ENST00000387449.1	n.-197C>A		upstream_gene_variant		6

Frequencies

Mitomap GenBank AF: 0.0 AC: 0

Mitomap

No disease associated.

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		-20
Mutation Taster		=89/11	polymorphism

Other links and lift over

dbSNP: rs1057516066; hg19: chrM-12011;