rs370444838

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PS3PP5_Very_Strong

The NM_005956.4(MTHFD1):c.146C>T(p.Ser49Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000193 in 1,612,804 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). ClinVar reports functional evidence for this variant: "SCV000883292: "Well-established functional studies show a deleterious effect (https://www.ncbi.nlm.nih.gov/pubmed/25633902)."" and additional evidence is available in ClinVar.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

MTHFD1
NM_005956.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 7.02

Publications

5 publications found

Variant links:

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]

MTHFD1 Gene-Disease associations (from GenCC):

combined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

MTHFD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PS3

PS3 evidence extracted from ClinVar submissions: SCV000883292: "Well-established functional studies show a deleterious effect (https://www.ncbi.nlm.nih.gov/pubmed/25633902)."; SCV002041696: experimental evidence evaluating an impact on protein function, and demonstrated severely decreased enzyme activity in patient derived fibroblast (Burda_2015, Bidla_2020).

PP5

Variant 14-64411109-C-T is Pathogenic according to our data. Variant chr14-64411109-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 446306.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005956.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MTHFD1	NM_005956.4	MANE Select	c.146C>T	p.Ser49Phe	missense	Exon 3 of 28	NP_005947.3
	MTHFD1	NM_001364837.1		c.146C>T	p.Ser49Phe	missense	Exon 3 of 27	NP_001351766.1	F5H2F4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MTHFD1	ENST00000652337.1	MANE Select	c.146C>T	p.Ser49Phe	missense	Exon 3 of 28	ENSP00000498336.1	P11586
MTHFD1	ENST00000555252.5	TSL:1	n.244-1363C>T		intron	N/A
MTHFD1	ENST00000545908.6	TSL:2	c.146C>T	p.Ser49Phe	missense	Exon 3 of 27	ENSP00000438588.2	F5H2F4

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000220

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000127

AC:

AN:

251122

AF XY:

0.000169

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000246

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000203

AC:

296

AN:

1460654

Hom.:

Cov.:

AF XY:

0.000201

AC XY:

146

AN XY:

726766

show subpopulations

African (AFR)

AF:

0.0000598

AC:

AN:

33470

American (AMR)

AF:

0.0000671

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53016

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000254

AC:

282

AN:

1111248

Other (OTH)

AF:

0.000149

AC:

AN:

60356

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.456

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000105

AC:

AN:

152150

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74330

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41426

American (AMR)

AF:

0.0000655

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000220

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000214

Hom.:

Bravo

AF:

0.000110

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000148

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Pathogenic/Likely pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Combined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia (3)

Neural tube defects, folate-sensitive;C4540434:Combined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia (1)

not provided (1)

Severe combined immunodeficiency disease (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.95

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.26

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Pathogenic

0.88

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

M_CAP

Uncertain

0.093

MetaRNN

Uncertain

0.73

MetaSVM

Uncertain

-0.24

PhyloP100

7.0

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-4.7

REVEL

Uncertain

0.44

Sift

Benign

0.040

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.88

MVP

0.64

MPC

1.2

ClinPred

0.98

GERP RS

3.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=9/91

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over