14-64411151-T-TA
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Variant summary
Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBS1BS2
The NM_005956.4(MTHFD1):c.186+4dup variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000347 in 1,611,622 control chromosomes in the GnomAD database, including 6 homozygotes. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).
Frequency
Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00036 ( 6 hom. )
Consequence
MTHFD1
NM_005956.4 splice_region, intron
NM_005956.4 splice_region, intron
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 2.61
Genes affected
MTHFD1 (HGNC:7432): (methylenetetrahydrofolate dehydrogenase, cyclohydrolase and formyltetrahydrofolate synthetase 1) This gene encodes a protein that possesses three distinct enzymatic activities, 5,10-methylenetetrahydrofolate dehydrogenase, 5,10-methenyltetrahydrofolate cyclohydrolase and 10-formyltetrahydrofolate synthetase. Each of these activities catalyzes one of three sequential reactions in the interconversion of 1-carbon derivatives of tetrahydrofolate, which are substrates for methionine, thymidylate, and de novo purine syntheses. The trifunctional enzymatic activities are conferred by two major domains, an aminoterminal portion containing the dehydrogenase and cyclohydrolase activities and a larger synthetase domain. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -10 ACMG points.
BP6
Variant 14-64411151-T-TA is Benign according to our data. Variant chr14-64411151-T-TA is described in ClinVar as [Likely_benign]. Clinvar id is 1113442.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000217 (33/152268) while in subpopulation EAS AF= 0.00618 (32/5180). AF 95% confidence interval is 0.0045. There are 0 homozygotes in gnomad4. There are 18 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 6 AR gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MTHFD1 | NM_005956.4 | c.186+4dup | splice_region_variant, intron_variant | ENST00000652337.1 | NP_005947.3 | |||
MTHFD1 | NM_001364837.1 | c.186+4dup | splice_region_variant, intron_variant | NP_001351766.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MTHFD1 | ENST00000652337.1 | c.186+4dup | splice_region_variant, intron_variant | NM_005956.4 | ENSP00000498336 | P1 |
Frequencies
GnomAD3 genomes AF: 0.000217 AC: 33AN: 152150Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.000284 AC: 71AN: 250338Hom.: 0 AF XY: 0.000266 AC XY: 36AN XY: 135422
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GnomAD4 exome AF: 0.000360 AC: 526AN: 1459354Hom.: 6 Cov.: 30 AF XY: 0.000365 AC XY: 265AN XY: 726184
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GnomAD4 genome AF: 0.000217 AC: 33AN: 152268Hom.: 0 Cov.: 32 AF XY: 0.000242 AC XY: 18AN XY: 74462
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ClinVar
Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Mar 14, 2023 | - - |
Computational scores
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at