M-6674-T-C

Position:

• chrM-6674-T-C

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP6_Moderate BP7 BS2

The ENST00000361624.2(MT-CO1):​c.771T>C​(p.Ile257=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Mitomap GenBank: 𝑓 0.0010 (AC: 61)
• Consequence: MT-CO1 ENST00000361624.2 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1 No linked disesase in Mitomap
• Conservation: PhyloP100: -5.33

Genes affected

COX1 (HGNC:):

MT-CO1 (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]

ACMG classification

Verdict is Benign. Variant got -7 ACMG points.

• BP6: Variant M-6674-T-C is Benign according to our data. Variant chrM-6674-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 376859.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-5.33 with no splicing effect.
• BS2: High AC in GnomadMitoHomoplasmic at 10

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
COX1	COX1.1	c.771T>C	p.Ile257=	synonymous_variant	1/1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MT-CO1	ENST00000361624.2	c.771T>C	p.Ile257=	synonymous_variant	1/1			P1

Frequencies

GnomAD4 exome Cov.: 0

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

Mitomap GenBank AF: 0.0010 AC: 61

Gnomad homoplasmic AF: 0.00018 AC: 10 AN: 56431

Gnomad heteroplasmic AF: 0.000018 AC: 1 AN: 56431

Alfa AF: 0.000223 Hom.: 1

Mitomap

No disease associated.

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Jan 06, 2017

- -

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs878895466; hg19: chrM-6675;