rs786204034
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_ModeratePP5_Moderate
The NM_005957.5(MTHFR):c.1793T>G(p.Leu598Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L598P) has been classified as Uncertain significance.
Frequency
Consequence
NM_005957.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MTHFR | NM_005957.5 | c.1793T>G | p.Leu598Arg | missense_variant | 12/12 | ENST00000376590.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MTHFR | ENST00000376590.9 | c.1793T>G | p.Leu598Arg | missense_variant | 12/12 | 1 | NM_005957.5 | A1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome Cov.: 31
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Homocystinuria due to methylene tetrahydrofolate reductase deficiency Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | 3billion | Jan 03, 2022 | A different missense change at the same codon (p.Leu598Pro) has been reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000187902, PMID:25736335, PM5_M). It is not observed in the gnomAD v2.1.1 dataset (PM2_M). In silico tool predictions suggest damaging effect of the variant on gene or gene product (REVEL: 0.761, PP3_P). A missense variant is a common mechanism associated with Homocystinuria due to MTHFR deficiency (PP2_P). Therefore, this variant is classified as likely pathogenic according to the recommendation of ACMG/AMP guideline. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.