rs752934195
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP5_Moderate
The NR_003051.3(RMRP):n.1_2insTGAGGACGTG variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).
Frequency
Genomes: not found (cov: 34)
Consequence
RMRP
NR_003051.3 non_coding_transcript_exon
NR_003051.3 non_coding_transcript_exon
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: -1.62
Genes affected
RMRP (HGNC:10031): (RNA component of mitochondrial RNA processing endoribonuclease) This gene encodes the RNA component of mitochondrial RNA processing endoribonuclease, which cleaves mitochondrial RNA at a priming site of mitochondrial DNA replication. This RNA also interacts with the telomerase reverse transcriptase catalytic subunit to form a distinct ribonucleoprotein complex that has RNA-dependent RNA polymerase activity and produces double-stranded RNAs that can be processed into small interfering RNA. Mutations in this gene are associated with cartilage-hair hypoplasia.[provided by RefSeq, Mar 2010]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 4 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 9-35658017-C-CCACGTCCTCA is Pathogenic according to our data. Variant chr9-35658017-C-CCACGTCCTCA is described in ClinVar as [Pathogenic]. Clinvar id is 971991.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
RMRP | NR_003051.3 | n.1_2insTGAGGACGTG | non_coding_transcript_exon_variant | 1/1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
RMRP | ENST00000363046.1 | upstream_gene_variant |
Frequencies
GnomAD3 genomes ? Cov.: 34
GnomAD3 genomes
?
Cov.:
34
GnomAD4 exome Cov.: 0
GnomAD4 exome
Cov.:
0
GnomAD4 genome ? Cov.: 34
GnomAD4 genome
?
Cov.:
34
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Metaphyseal chondrodysplasia, McKusick type Pathogenic:1
Likely pathogenic, no assertion criteria provided | clinical testing | Natera, Inc. | Jul 08, 2021 | - - |
Anauxetic dysplasia Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Nov 15, 2022 | For these reasons, this variant has been classified as Pathogenic. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. While functional studies for this variant have not been reported, experimental analyses using patient derived cells, as well as in vitro transfection studies, have shown that promoter insertions result in silencing of RMRP transcription and reduced expression of the gene product (PMID: 11207361, 16254002). ClinVar contains an entry for this variant (Variation ID: 971991). While this particular variant has not been reported in the literature, it is located in the promoter region between the TATA box and the transcription initiation site, and other insertions and duplications immediately upstream of the coding sequence have been reported in individuals affected with cartilage-hair hypoplasia-anauxetic dysplasia (CHH-AD) spectrum disorders (PMID: 16244706, 11207361, 12107819). This variant is not present in population databases (gnomAD no frequency). This variant occurs in the RMRP gene, which encodes an RNA molecule that does not result in a protein product. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at