rs1554160919
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_000255.4(MMUT):c.360_361insT(p.Lys121Ter) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 32)
Consequence
MMUT
NM_000255.4 frameshift
NM_000255.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 0.841
Genes affected
MMUT (HGNC:7526): (methylmalonyl-CoA mutase) This gene encodes the mitochondrial enzyme methylmalonyl Coenzyme A mutase. In humans, the product of this gene is a vitamin B12-dependent enzyme which catalyzes the isomerization of methylmalonyl-CoA to succinyl-CoA, while in other species this enzyme may have different functions. Mutations in this gene may lead to various types of methylmalonic aciduria. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 18 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 6-49459106-T-TA is Pathogenic according to our data. Variant chr6-49459106-T-TA is described in ClinVar as [Pathogenic]. Clinvar id is 557861.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MMUT | NM_000255.4 | c.360_361insT | p.Lys121Ter | frameshift_variant | 2/13 | ENST00000274813.4 | |
MMUT | XM_005249143.4 | c.360_361insT | p.Lys121Ter | frameshift_variant | 2/13 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MMUT | ENST00000274813.4 | c.360_361insT | p.Lys121Ter | frameshift_variant | 2/13 | 1 | NM_000255.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Methylmalonic aciduria due to methylmalonyl-CoA mutase deficiency Pathogenic:2
Pathogenic, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Dec 18, 2021 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Counsyl | Apr 13, 2018 | - - |
Computational scores
Source:
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Calibrated prediction
Score
Prediction
Splicing
Name
Calibrated prediction
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Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at