M-2158-T-C

Variant names:

• chrM-2158-T-C
• rs41349444
• ENST00000387347.2:n.488T>C

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP6_Moderate BS2

The ENST00000000000(RNR2):​n.488T>C variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Mitomap GenBank: 𝑓 0.0040 (AC: 247)
• Consequence: RNR2 ENST00000000000 non_coding_transcript_exon
• Clinical Significance: Likely benign criteria provided, single submitter B:1 Reduced-risk-PD
• Conservation: PhyloP100: -4.70
• Publications: 7 publications found

Genes affected

MT-RNR2 (HGNC:7471): (mitochondrially encoded 16S RNA) Enables G protein-coupled receptor binding activity; protein self-association; and receptor antagonist activity. Involved in several processes, including leukocyte chemotaxis; negative regulation of cell death; and negative regulation of neuroinflammatory response. Located in several cellular components, including mitochondrion; perinuclear region of cytoplasm; and sperm midpiece. [provided by Alliance of Genome Resources, Apr 2022]

MT-RNR2 Gene-Disease associations (from GenCC):

• mitochondrial disease

  Inheritance: Mitochondrial Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP6: Variant M-2158-T-C is Benign according to our data. Variant chrM-2158-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 3911607.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High AC in GnomadMitoHomoplasmic at 373

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RNR2	unassigned_transcript_4787	n.488T>C		non_coding_transcript_exon_variant	Exon 1 of 1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MT-RNR2	ENST00000387347.2	n.488T>C		non_coding_transcript_exon_variant	Exon 1 of 1	6

Frequencies

Mitomap GenBank AF: 0.0040 AC: 247

Gnomad homoplasmic AF: 0.0066 AC: 373 AN: 56430

Gnomad heteroplasmic AF: 0.000018 AC: 1 AN: 56430

Alfa AF: 0.0112 Hom.: 366

Mitomap

Disease(s): Reduced-risk-PD

Status: Reported

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Feb 16, 2025

Laboratory of Genetics, Children's Clinical University Hospital Latvia

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		-4.7

Other links and lift over

dbSNP: rs41349444; hg19: chrM-2160;