12-123253717-C-T
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Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate
The NM_152269.5(MTRFR):c.43C>T(p.Arg15Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000527 in 1,614,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).
Frequency
Genomes: 𝑓 0.00012 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000046 ( 0 hom. )
Consequence
MTRFR
NM_152269.5 stop_gained
NM_152269.5 stop_gained
Scores
1
2
4
Clinical Significance
Conservation
PhyloP100: 1.40
Genes affected
MTRFR (HGNC:26784): (mitochondrial translation release factor in rescue) This nuclear gene encodes a mitochondrial matrix protein that appears to contribute to peptide chain termination in the mitochondrial translation machinery. Two different 1 bp deletions (resulting in the same premature stop codon)result in decreased mitochondrial translation, decreased levels of oxidative phosphorylation complexes and encepthalomyopathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2010]
CDK2AP1 (HGNC:14002): (cyclin dependent kinase 2 associated protein 1) The protein encoded by this gene is a cyclin-dependent kinase 2 (CDK2) -associated protein which is thought to negatively regulate CDK2 activity by sequestering monomeric CDK2, and targeting CDK2 for proteolysis. This protein was found to also interact with DNA polymerase alpha/primase and mediate the phosphorylation of the large p180 subunit, which suggests a regulatory role in DNA replication during the S-phase of the cell cycle. This protein also forms a core subunit of the nucleosome remodeling and histone deacetylation (NURD) complex that epigenetically regulates embryonic stem cell differentiation. This gene thus plays a role in both cell-cycle and epigenetic regulation. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2012]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most 50 bp of the penultimate exon, not predicted to undergo nonsense mediated mRNA decay. There are 10 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 12-123253717-C-T is Pathogenic according to our data. Variant chr12-123253717-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1323989.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MTRFR | NM_152269.5 | c.43C>T | p.Arg15Ter | stop_gained | 2/3 | ENST00000253233.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MTRFR | ENST00000253233.6 | c.43C>T | p.Arg15Ter | stop_gained | 2/3 | 1 | NM_152269.5 | P1 |
Frequencies
GnomAD3 genomes AF: 0.000118 AC: 18AN: 152140Hom.: 0 Cov.: 31
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GnomAD3 exomes AF: 0.0000994 AC: 25AN: 251462Hom.: 0 AF XY: 0.000103 AC XY: 14AN XY: 135908
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GnomAD4 exome AF: 0.0000458 AC: 67AN: 1461892Hom.: 0 Cov.: 30 AF XY: 0.0000468 AC XY: 34AN XY: 727248
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GnomAD4 genome AF: 0.000118 AC: 18AN: 152140Hom.: 0 Cov.: 31 AF XY: 0.000202 AC XY: 15AN XY: 74318
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ClinVar
Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | Dec 18, 2022 | - - |
Computational scores
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Name
Calibrated prediction
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BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Uncertain
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Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
MutationTaster
Benign
A;A;A
Vest4
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RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at