rs1554651396
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PP5_Very_Strong
The 9-35658018-C-CACGTCCTCAGCTTCACAG variant causes a upstream gene change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000056 ( 0 hom. )
Consequence
RMRP
NR_003051.3 upstream_gene
NR_003051.3 upstream_gene
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: -5.45
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 Likely_pathogenic. Variant got 8 ACMG points.
PP5
?
Variant 9-35658018-C-CACGTCCTCAGCTTCACAG is Pathogenic according to our data. Variant chr9-35658018-C-CACGTCCTCAGCTTCACAG is described in ClinVar as [Likely_pathogenic]. Clinvar id is 552761.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
RMRP | NR_003051.3 | upstream_gene_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
RMRP | ENST00000363046.1 | upstream_gene_variant |
Frequencies
GnomAD3 genomes ? Cov.: 34
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GnomAD3 exomes AF: 0.0000156 AC: 2AN: 127922Hom.: 0 AF XY: 0.0000143 AC XY: 1AN XY: 69850
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GnomAD4 exome AF: 0.00000558 AC: 3AN: 537988Hom.: 0 Cov.: 0 AF XY: 0.00000690 AC XY: 2AN XY: 289814
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GnomAD4 genome ? Cov.: 34
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ClinVar
Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Metaphyseal chondrodysplasia, McKusick type Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Counsyl | Jul 06, 2017 | - - |
Anauxetic dysplasia Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jul 20, 2022 | This variant occurs in the RMRP gene, which encodes an RNA molecule that does not result in a protein product. This variant is present in population databases (no rsID available, gnomAD 0.009%). 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). ClinVar contains an entry for this variant (Variation ID: 552761). 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). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. - |
Computational scores
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Find out detailed SpliceAI scores and Pangolin per-transcript scores at