rs876657507

Variant names:

• chrM-979-C-T
• rs876657507
• ENST00000389680.2:n.332C>T

Variant summary

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

The ENST00000000000(RNR1):​n.332C>T 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 0.0010 (AC: 64)
• Consequence: RNR1 ENST00000000000 non_coding_transcript_exon
• Clinical Significance: Likely benign criteria provided, single submitter B:1 No linked disesase in Mitomap
• Conservation: PhyloP100: -9.65
• Publications: 0 publications found

Genes affected

MT-RNR1 (HGNC:7470): (mitochondrially encoded 12S RNA) Enables DNA binding activity and DNA-binding transcription factor binding activity. Involved in several processes, including osteoblast proliferation; regulation of carbohydrate utilization; and regulation of phosphate metabolic process. Located in extracellular space; mitochondrion; and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

MT-RNR1 Gene-Disease associations (from GenCC):

• mitochondrial disease

  Inheritance: Mitochondrial Classification: DEFINITIVE Submitted by: ClinGen

ACMG classification

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

• BP6: Variant M-979-C-T is Benign according to our data. Variant chrM-979-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 227551.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High AC in GnomadMitoHomoplasmic at 20

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RNR1	unassigned_transcript_4785	n.332C>T		non_coding_transcript_exon_variant	Exon 1 of 1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MT-RNR1	ENST00000389680.2	n.332C>T		non_coding_transcript_exon_variant	Exon 1 of 1	6

Frequencies

Mitomap GenBank AF: 0.0010 AC: 64

Gnomad homoplasmic AF: 0.00035 AC: 20 AN: 56434

Gnomad heteroplasmic AF: 0.0 AC: 0 AN: 56434

Mitomap

No disease associated.

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Jan 14, 2015

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

m.979C>T in MTRNR1: This variant is not expected to have clinical significance b ecause it has not been reported in individuals with hearing loss and has been fo und in the general population at a frequency of 0.04% (11/26851) human mitochond rial DNA sequences with an average haplogroup-specific frequency in European pop ulations of 0.5% (mitomap.org). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		-9.7

Other links and lift over

dbSNP: rs876657507; hg19: chrM-981;