rs549085067

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 10P and 1B. PM2PP5_Very_StrongBP4

The NR_003051.3(RMRP):​n.36C>T variant causes a non coding transcript exon change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000143 in 700,318 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

RMRP
NR_003051.3 non_coding_transcript_exon

Scores

2

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:2U:1

Conservation

PhyloP100: 8.94
Variant links:
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 9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 9-35657983-G-A is Pathogenic according to our data. Variant chr9-35657983-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 533761.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-35657983-G-A is described in Lovd as [Likely_pathogenic].
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.36). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RMRPNR_003051.3 linkuse as main transcriptn.36C>T non_coding_transcript_exon_variant 1/1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RMRPENST00000363046.1 linkuse as main transcriptn.35C>T non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152248
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000146
AC:
8
AN:
548070
Hom.:
0
Cov.:
0
AF XY:
0.0000168
AC XY:
5
AN XY:
296786
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000160
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000158
Gnomad4 OTH exome
AF:
0.0000658
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152248
Hom.:
0
Cov.:
34
AF XY:
0.0000134
AC XY:
1
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:2Uncertain:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Anauxetic dysplasia Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 24, 2024This 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 0.01%). This variant has been observed in individual(s) with cartilage-hair hypoplasia-anauxetic dysplasia spectrum disorders (PMID: 16244706; Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. This variant is also known as g.35C>T or 35C>U. ClinVar contains an entry for this variant (Variation ID: 533761). Studies have shown that this variant alters RMRP gene expression (PMID: 18164267). For these reasons, this variant has been classified as Pathogenic. -
Metaphyseal chondrodysplasia, McKusick type;C1834821:Metaphyseal dysplasia without hypotrichosis;C4551965:Anauxetic dysplasia 1 Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsSep 17, 2021- -
Metaphyseal chondrodysplasia, McKusick type Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Sep 16, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.36
CADD
Benign
15
DANN
Benign
0.65

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs549085067; hg19: chr9-35657980; API