rs377566038

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_ModerateBP6_Very_Strong

The NR_003051.3(RMRP):n.176G>A variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000413 in 700,470 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 benign (★★).

Frequency

Genomes: 𝑓 0.00053 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00038 ( 0 hom. )

Consequence

RMRP
NR_003051.3 non_coding_transcript_exon

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 3.29

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]

RMRP links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.26).

BP6

Variant 9-35657843-C-T is Benign according to our data. Variant chr9-35657843-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 533773.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 linkuse as main transcript	n.176G>A		non_coding_transcript_exon_variant	1/1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RMRP	ENST00000363046.1 linkuse as main transcript	n.175G>A		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes

AF:

0.000525

AC:

AN:

152260

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000410

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0112

Gnomad SAS

AF:

0.000413

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000820

AC:

107

AN:

130430

Hom.:

AF XY:

0.000829

AC XY:

AN XY:

71202

show subpopulations

Gnomad AFR exome

AF:

0.000164

Gnomad AMR exome

AF:

0.000123

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00882

Gnomad SAS exome

AF:

0.000223

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000604

Gnomad OTH exome

AF:

0.000749

GnomAD4 exome

AF:

0.000381

AC:

209

AN:

548092

Hom.:

Cov.:

AF XY:

0.000431

AC XY:

128

AN XY:

296790

show subpopulations

Gnomad4 AFR exome

AF:

0.000508

Gnomad4 AMR exome

AF:

0.000115

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00371

Gnomad4 SAS exome

AF:

0.000431

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000568

Gnomad4 OTH exome

AF:

0.00109

GnomAD4 genome

AF:

0.000525

AC:

AN:

152378

Hom.:

Cov.:

AF XY:

0.000604

AC XY:

AN XY:

74514

show subpopulations

Gnomad4 AFR

AF:

0.000409

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0112

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000299

Hom.:

Bravo

AF:

0.000408

Asia WGS

AF:

0.00837

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Mar 13, 2022

Variant summary: RMRP n.176G>A alters a conserved nucleotide in the non-coding RNA. The variant allele was found at a frequency of 0.00082 in 130430 control chromosomes, predominantly at a frequency of 0.0088 within the East Asian subpopulation in the gnomAD database. The observed variant frequency within East Asian control individuals in the gnomAD database is approximately 1.2 fold of the estimated maximal expected allele frequency for a pathogenic variant in RMRP causing Cartilage-Hair Hypoplasia phenotype (0.0072), strongly suggesting that the variant is a benign polymorphism found primarily in populations of East Asian origin. To our knowledge, no occurrence of n.176G>A in individuals affected with Cartilage-Hair Hypoplasia and no experimental evidence demonstrating its impact on protein function have been reported. One clinical diagnostic laboratory has submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation and classified the variant as likely benign. Based on the evidence outlined above, the variant was classified as benign. -

Anauxetic dysplasia

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.26

Cadd

Benign

Dann

Benign

0.87

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over