chr13-41240298-C-T
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Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_004294.4(MTRF1):c.833G>A(p.Gly278Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000868 in 1,612,058 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 Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )
Consequence
MTRF1
NM_004294.4 missense
NM_004294.4 missense
Scores
6
7
6
Clinical Significance
Conservation
PhyloP100: 7.73
Genes affected
MTRF1 (HGNC:7469): (mitochondrial translation release factor 1) The protein encoded by this gene was determined by in silico methods to be a mitochondrial protein with similarity to the peptide chain release factors (RFs) discovered in bacteria and yeast. The peptide chain release factors direct the termination of translation in response to the peptide chain termination codons. Initially thought to have a role in the termination of mitochondria protein synthesis, a recent publication found no mitochondrial translation release functionality. Multiple alternatively spliced transcript variants have been suggested by mRNA and EST data; however, their full-length natures are not clear. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.963
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MTRF1 | NM_004294.4 | c.833G>A | p.Gly278Glu | missense_variant | 6/10 | ENST00000379480.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MTRF1 | ENST00000379480.9 | c.833G>A | p.Gly278Glu | missense_variant | 6/10 | 1 | NM_004294.4 | P1 | |
MTRF1 | ENST00000379477.5 | c.833G>A | p.Gly278Glu | missense_variant | 8/12 | 2 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152168Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000402 AC: 1AN: 248990Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 134596
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GnomAD4 exome AF: 0.00000890 AC: 13AN: 1459890Hom.: 0 Cov.: 31 AF XY: 0.00000964 AC XY: 7AN XY: 726182
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152168Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74326
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jan 24, 2024 | The c.833G>A (p.G278E) alteration is located in exon 6 (coding exon 5) of the MTRF1 gene. This alteration results from a G to A substitution at nucleotide position 833, causing the glycine (G) at amino acid position 278 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Benign
T;T
Eigen
Uncertain
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
.;D
M_CAP
Benign
D
MetaRNN
Pathogenic
D;D
MetaSVM
Benign
T
MutationAssessor
Benign
N;N
MutationTaster
Benign
D;D;D
PrimateAI
Pathogenic
D
PROVEAN
Benign
N;N
REVEL
Uncertain
Sift
Uncertain
D;D
Sift4G
Uncertain
D;D
Polyphen
D;D
Vest4
MutPred
Loss of MoRF binding (P = 0.059);Loss of MoRF binding (P = 0.059);
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