rs368623956

Variant names:

• chrM-7861-T-C
• rs368623956
• ENST00000361739.1:c.276T>C

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP6_Moderate BP7 BS1 BS2

The ENST00000361739.1(MT-CO2):​c.276T>C​(p.Asp92Asp) 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 0.0052 (AC: 317)
• Consequence: MT-CO2 ENST00000361739.1 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1 No linked disesase in Mitomap
• Conservation: PhyloP100: 0.125
• Publications: 5 publications found

Genes affected

MT-CO2 (HGNC:7421): (mitochondrially encoded cytochrome c oxidase II) Contributes to cytochrome-c oxidase activity. Predicted to be involved in mitochondrial electron transport, cytochrome c to oxygen and positive regulation of vasoconstriction. Located in mitochondrial inner membrane. Part of respiratory chain complex IV. Biomarker of Huntington's disease and stomach cancer. [provided by Alliance of Genome Resources, Apr 2022]

MT-CO2 Gene-Disease associations (from GenCC):

• mitochondrial disease

  Inheritance: Mitochondrial Classification: DEFINITIVE Submitted by: ClinGen
• cytochrome-c oxidase deficiency disease

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• MELAS syndrome

  Inheritance: Mitochondrial Classification: SUPPORTIVE Submitted by: Orphanet
• Leigh syndrome

  Inheritance: Mitochondrial Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -11 ACMG points.

• BP6: Variant M-7861-T-C is Benign according to our data. Variant chrM-7861-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 235521.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.125 with no splicing effect.
• BS1: High frequency in mitomap database: 0.0052
• BS2: High AC in GnomadMitoHomoplasmic at 199

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COX2	unassigned_transcript_4802	c.276T>C	p.Asp92Asp	synonymous_variant	Exon 1 of 1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MT-CO2	ENST00000361739.1	c.276T>C	p.Asp92Asp	synonymous_variant	Exon 1 of 1	6		ENSP00000354876.1

Frequencies

Mitomap GenBank AF: 0.0052 AC: 317

Gnomad homoplasmic AF: 0.0035 AC: 199 AN: 56413

Gnomad heteroplasmic AF: 0.00011 AC: 6 AN: 56413

Alfa AF: 0.00410 Hom.: 45

Mitomap

No disease associated.

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

May 10, 2016

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

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.13

Other links and lift over

dbSNP: rs368623956; hg19: chrM-7862;