M-586-G-A

Position:

• chrM-586-G-A

Variant summary

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

The ENST00000387314.1(MT-TF):​n.10G>A variant causes a non coding transcript exon change involving the alteration of a conserved nucleotide. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Mitomap GenBank: Absent
• Consequence: MT-TF ENST00000387314.1 non_coding_transcript_exon
• Scores: Mitotip Pathogenic 18
• Clinical Significance: Pathogenic criteria provided, single submitter P:2 Extrapyramidal-disorder-with-akinesia-rigidity+-psychosis-and-SNHL
• Conservation: PhyloP100: 8.79

Genes affected

MT-TF (HGNC:7481): (mitochondrially encoded tRNA phenylalanine)

TRNF (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: No frequency data in Mitomap. Probably very rare.
• PP3: Mitotip and hmtvar scores support pathogenic criterium.
• PP5: Variant M-586-G-A is Pathogenic according to our data. Variant chrM-586-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 30005.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRNF	TRNF.1	n.10G>A		non_coding_transcript_exon_variant	1/1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MT-TF	ENST00000387314.1	n.10G>A		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD4 exome Cov.: 0

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

Gnomad homoplasmic AF: 0.0 AC: 0 AN: 56431

Gnomad heteroplasmic AF: 0.000018 AC: 1 AN: 56431

Mitomap

Extrapyramidal-disorder-with-akinesia-rigidity+-psychosis-and-SNHL

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Juvenile myopathy, encephalopathy, lactic acidosis AND stroke Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Wong Mito Lab, Molecular and Human Genetics, Baylor College of Medicine

Jul 12, 2019

The NC_012920.1:m.586G>A variant in MT-TF gene is interpreted to be a Pathogenic variant based on the modified ACMG guidelines (unpublished). This variant meets the following evidence codes reported in the guidelines: PS3, PM7, PM8, PM9 -

Mitochondrial encephalopathy Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Nov 01, 2010

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
Mitotip	Pathogenic	18
Hmtvar	Pathogenic	0.60

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs387906734; hg19: chrM-588;