rs374464556
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_152269.5(MTRFR):āc.347T>Cā(p.Val116Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,678 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: š 0.0000066 ( 0 hom., cov: 32)
Exomes š: 0.0000034 ( 0 hom. )
Consequence
MTRFR
NM_152269.5 missense
NM_152269.5 missense
Scores
4
7
7
Clinical Significance
Conservation
PhyloP100: 7.99
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 Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MTRFR | NM_152269.5 | c.347T>C | p.Val116Ala | missense_variant | 3/3 | ENST00000253233.6 | NP_689482.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MTRFR | ENST00000253233.6 | c.347T>C | p.Val116Ala | missense_variant | 3/3 | 1 | NM_152269.5 | ENSP00000253233 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 151994Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000804 AC: 2AN: 248760Hom.: 0 AF XY: 0.00000742 AC XY: 1AN XY: 134774
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GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461684Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727158
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GnomAD4 genome AF: 0.00000658 AC: 1AN: 151994Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74248
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Combined oxidative phosphorylation defect type 7;C3539506:Hereditary spastic paraplegia 55 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Mayo Clinic Laboratories, Mayo Clinic | May 22, 2017 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Benign
T;T;T;T
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
.;D;D;.
M_CAP
Benign
T
MetaRNN
Uncertain
T;T;T;T
MetaSVM
Benign
T
MutationAssessor
Pathogenic
M;M;.;M
MutationTaster
Benign
D;D;D
PROVEAN
Uncertain
D;D;D;D
REVEL
Uncertain
Sift
Benign
T;T;T;T
Sift4G
Uncertain
D;D;D;D
Polyphen
P;P;.;P
Vest4
MVP
MPC
ClinPred
D
GERP RS
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gMVP
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