Variant 15-79845402-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS2

The NM_006441.4(MTHFS):c.420C>T(p.Asp140=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000522 in 1,614,156 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0027 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00030 ( 3 hom. )

Consequence

MTHFS
NM_006441.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.42

Variant links:

Genes affected

MTHFS (HGNC:7437): (methenyltetrahydrofolate synthetase) The protein encoded by this gene is an enzyme that catalyzes the conversion of 5-formyltetrahydrofolate to 5,10-methenyltetrahydrofolate, a precursor of reduced folates involved in 1-carbon metabolism. An increased activity of the encoded protein can result in an increased folate turnover rate and folate depletion. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jun 2011]

MTHFS links:

ST20-MTHFS (HGNC:):

ST20-MTHFS links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.46).

BP6

Variant 15-79845402-G-A is Benign according to our data. Variant chr15-79845402-G-A is described in ClinVar as [Benign]. Clinvar id is 787962.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=1.42 with no splicing effect.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MTHFS	NM_006441.4 linkuse as main transcript	c.420C>T	p.Asp140=	synonymous_variant	3/3	ENST00000258874.4
ST20-MTHFS	NM_001199760.2 linkuse as main transcript	c.348C>T	p.Asp116=	synonymous_variant	4/4
MTHFS	NM_001199758.1 linkuse as main transcript	c.249C>T	p.Asp83=	synonymous_variant	3/3
MTHFS	NR_037654.2 linkuse as main transcript	n.527C>T		non_coding_transcript_exon_variant	3/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MTHFS	ENST00000258874.4 linkuse as main transcript	c.420C>T	p.Asp140=	synonymous_variant	3/3	1	NM_006441.4	P1	P49914-1
MTHFS	ENST00000559722.2 linkuse as main transcript	c.507C>T	p.Asp169=	synonymous_variant	3/3	2

Frequencies

GnomAD3 genomes

AF:

0.00266

AC:

405

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00934

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.000684

AC:

172

AN:

251340

Hom.:

AF XY:

0.000648

AC XY:

AN XY:

135842

show subpopulations

Gnomad AFR exome

AF:

0.00947

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000880

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000300

AC:

438

AN:

1461886

Hom.:

Cov.:

AF XY:

0.000265

AC XY:

193

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0105

Gnomad4 AMR exome

AF:

0.000291

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000387

Gnomad4 OTH exome

AF:

0.000464

GnomAD4 genome

AF:

0.00266

AC:

405

AN:

152270

Hom.:

Cov.:

AF XY:

0.00263

AC XY:

196

AN XY:

74462

show subpopulations

Gnomad4 AFR

AF:

0.00931

Gnomad4 AMR

AF:

0.000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00148

Hom.:

Bravo

AF:

0.00296

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Nov 10, 2023	- -

MTHFS-related disorder

Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jul 01, 2019

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.46

CADD

Benign

7.6

DANN

Benign

0.83

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over