M-5805-A-G

Variant names:

• chrM-5805-A-G
• unassigned_transcript_4797:c.22T>C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

Variant has been reported in ClinVar as not provided (no stars).

• Frequency: Mitomap GenBank: 𝑓 0.0 (AC: 2)
• Consequence: TRNC synonymous
• Scores: Mitotip Uncertain 15
• Clinical Significance: not provided no classification provided O:1 No linked disesase in Mitomap
• Conservation: PhyloP100: 1.09

Genes affected

TRNC (HGNC:7477): (mitochondrially encoded tRNA cysteine)

COX1 (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]

TRNN (HGNC:7493): (mitochondrially encoded tRNA asparagine)

TRNA (HGNC:7475): (mitochondrially encoded tRNA alanine)

TRNW (HGNC:7501): (mitochondrially encoded tRNA tryptophan)

TRNY (HGNC:7502): (mitochondrially encoded tRNA tyrosine)

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very low frequency in mitomap database: 0.0

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRNC	unassigned_transcript_4797	c.22T>C	p.Leu8Leu	synonymous_variant	Exon 1 of 1
COX1	unassigned_transcript_4799	c.-99A>G		upstream_gene_variant
TRNN	unassigned_transcript_4796	c.-76T>C		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt

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: 2

Gnomad homoplasmic AF: 0.0 AC: 0 AN: 56434

Gnomad heteroplasmic AF: 0.000035 AC: 2 AN: 56434

Mitomap

No disease associated.

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

not provided Other:1

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GenomeConnect - Brain Gene Registry

Significance: not provided

Review Status: no classification provided

Collection Method: phenotyping only

Variant classified as Uncertain significance and reported on 03-15-2018 by GeneDx. Assertions are reported exactly as they appear on the patient provided laboratory report. GenomeConnect does not attempt to reinterpret the variant. The IDDRC-CTSA National Brain Gene Registry (BGR) is a study funded by the U.S. National Center for Advancing Translational Sciences (NCATS) and includes 13 Intellectual and Developmental Disability Research Center (IDDRC) institutions. The study is led by Principal Investigator Dr. Philip Payne from Washington University. The BGR is a data commons of gene variants paired with subject clinical information. This database helps scientists learn more about genetic changes and their impact on the brain and behavior. Participation in the Brain Gene Registry requires participation in GenomeConnect. More information about the Brain Gene Registry can be found on the study website - https://braingeneregistry.wustl.edu/. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
Mitotip	Uncertain	15
Hmtvar	Pathogenic	0.40

Splicing

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chrM-5806;