rs370444838

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PP5_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 (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

MTHFD1
NM_005956.4 missense

Scores

7
6
3

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)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MTHFD1
NM_005956.4
MANE Select
c.146C>Tp.Ser49Phe
missense
Exon 3 of 28NP_005947.3
MTHFD1
NM_001364837.1
c.146C>Tp.Ser49Phe
missense
Exon 3 of 27NP_001351766.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MTHFD1
ENST00000652337.1
MANE Select
c.146C>Tp.Ser49Phe
missense
Exon 3 of 28ENSP00000498336.1
MTHFD1
ENST00000555252.5
TSL:1
n.244-1363C>T
intron
N/A
MTHFD1
ENST00000545908.6
TSL:2
c.146C>Tp.Ser49Phe
missense
Exon 3 of 27ENSP00000438588.2

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152150
Hom.:
0
Cov.:
32
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:
32
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.:
0
Cov.:
30
AF XY:
0.000201
AC XY:
146
AN XY:
726766
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33470
American (AMR)
AF:
0.0000671
AC:
3
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86242
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53016
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000254
AC:
282
AN:
1111248
Other (OTH)
AF:
0.000149
AC:
9
AN:
60356
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.456
Heterozygous variant carriers
0
13
25
38
50
63
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
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:
16
AN:
152150
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74330
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41426
American (AMR)
AF:
0.0000655
AC:
1
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000220
AC:
15
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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.:
0
Bravo
AF:
0.000110
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000148
AC:
18
EpiCase
AF:
0.000273
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions as Germline
Significance:Pathogenic/Likely pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
3
-
-
Combined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia (3)
1
-
-
Neural tube defects, folate-sensitive;C4540434:Combined immunodeficiency and megaloblastic anemia with or without hyperhomocysteinemia (1)
1
-
-
not provided (1)
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
T
BayesDel_noAF
Benign
-0.26
CADD
Pathogenic
32
DANN
Uncertain
1.0
Eigen
Pathogenic
0.88
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Uncertain
0.093
D
MetaRNN
Uncertain
0.73
D
MetaSVM
Uncertain
-0.24
T
PhyloP100
7.0
PrimateAI
Uncertain
0.63
T
PROVEAN
Pathogenic
-4.7
D
REVEL
Uncertain
0.44
Sift
Benign
0.040
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.88
MVP
0.64
MPC
1.2
ClinPred
0.98
D
GERP RS
3.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=9/91
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs370444838; hg19: chr14-64877827; API