chrM-14771-C-A

Variant names:

• chrM-14771-C-A
• rs1556424489
• unassigned_transcript_4818:c.25C>A

Variant summary

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

In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Mitomap GenBank: 𝑓 0.0 (AC: 2)
• Consequence: CYTB missense
• Scores: Apogee2 Benign 0.27
• Clinical Significance: Uncertain significance no assertion criteria provided U:1 No linked disesase in Mitomap
• Conservation: PhyloP100: 3.05

Genes affected

CYTB (HGNC:7427): (mitochondrially encoded cytochrome b) Predicted to enable metal ion binding activity. Predicted to be involved in several processes, including electron transport coupled proton transport; response to cobalamin; and response to glucagon. Located in mitochondrion. Implicated in ovarian carcinoma and urinary bladder cancer. [provided by Alliance of Genome Resources, Apr 2022]

ND6 (HGNC:7462): (mitochondrially encoded NADH dehydrogenase 6) Enables NADH dehydrogenase (ubiquinone) activity. Involved in mitochondrial electron transport, NADH to ubiquinone and mitochondrial respiratory chain complex I assembly. Predicted to be located in mitochondrial inner membrane. Implicated in Leber hereditary optic neuropathy; Leigh disease; and spinal muscular atrophy with lower extremity predominante 2B. [provided by Alliance of Genome Resources, Apr 2022]

TRNE (HGNC:7479): (mitochondrially encoded tRNA glutamic acid)

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
CYTB	unassigned_transcript_4818	c.25C>A	p.Pro9Thr	missense_variant	Exon 1 of 1
ND6	unassigned_transcript_4816	c.-98G>T		upstream_gene_variant
TRNE	unassigned_transcript_4817	c.-29G>T		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: 0.000053 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

Autosomal recessive spinocerebellar ataxia 20 Uncertain:1

Dec 22, 2016

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

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: research

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
Apogee2	Benign	0.27
Hmtvar	Pathogenic	0.78
AlphaMissense	Benign	0.089

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs1556424489; hg19: chrM-14772;