ENST00000361453.3:c.195C>T

Variant names:

• chrM-4664-C-T
• rs1057516059
• ENST00000361453.3:c.195C>T

Variant summary

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

The ENST00000361453.3(MT-ND2):​c.195C>T​(p.Thr65Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Mitomap GenBank: 𝑓 0.0 (AC: 3)
• Consequence: MT-ND2 ENST00000361453.3 synonymous
• Clinical Significance: Uncertain significance no assertion criteria provided U:1 No linked disesase in Mitomap
• Conservation: PhyloP100: -9.81
• Publications: 0 publications found

Genes affected

MT-ND2 (HGNC:7456): (mitochondrially encoded NADH dehydrogenase 2) 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; multiple sclerosis; myocardial infarction; neurodegenerative disease (multiple); and urinary bladder cancer. [provided by Alliance of Genome Resources, Apr 2022]

TRNM (HGNC:7492): (mitochondrially encoded tRNA methionine)

TRNM Gene-Disease associations (from GenCC):

• mitochondrial disease

  Inheritance: Mitochondrial Classification: DEFINITIVE 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=-9.81 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ND2	unassigned_transcript_4793	c.195C>T	p.Thr65Thr	synonymous_variant	Exon 1 of 1
TRNM	unassigned_transcript_4792	c.*195C>T		downstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MT-ND2	ENST00000361453.3	c.195C>T	p.Thr65Thr	synonymous_variant	Exon 1 of 1	6		ENSP00000355046.4
MT-TM	ENST00000387377.1	n.*195C>T		downstream_gene_variant		6

Frequencies

Mitomap GenBank AF: 0.0 AC: 3

Gnomad homoplasmic AF: 0.000053 AC: 3 AN: 56433

Gnomad heteroplasmic AF: 0.0 AC: 0 AN: 56433

Mitomap

No disease associated.

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

Epilepsy;C0424605:Developmental delay Uncertain:1

Nov 21, 2016

Center for Neuroscience and Cell Biology, University of Coimbra, Portugal

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		-9.8
Mutation Taster		=71/29	polymorphism

Other links and lift over

dbSNP: rs1057516059; hg19: chrM-4665;