4-74201263-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001144978.3(MTHFD2L):​c.605G>T​(p.Gly202Val) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,758 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

MTHFD2L
NM_001144978.3 missense, splice_region

Scores

7
11
1
Splicing: ADA: 0.9999
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.57
Variant links:
Genes affected
MTHFD2L (HGNC:31865): (methylenetetrahydrofolate dehydrogenase (NADP+ dependent) 2 like) Predicted to enable methenyltetrahydrofolate cyclohydrolase activity; methylenetetrahydrofolate dehydrogenase (NAD+) activity; and methylenetetrahydrofolate dehydrogenase (NADP+) activity. Predicted to be involved in tetrahydrofolate interconversion. Predicted to be located in mitochondrial matrix. Predicted to be active in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.85

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MTHFD2LNM_001144978.3 linkuse as main transcriptc.605G>T p.Gly202Val missense_variant, splice_region_variant 5/8 ENST00000325278.7 NP_001138450.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MTHFD2LENST00000325278.7 linkuse as main transcriptc.605G>T p.Gly202Val missense_variant, splice_region_variant 5/85 NM_001144978.3 ENSP00000321984 P1Q9H903-4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250566
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135422
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459758
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
726270
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 02, 2023The c.605G>T (p.G202V) alteration is located in exon 5 (coding exon 5) of the MTHFD2L gene. This alteration results from a G to T substitution at nucleotide position 605, causing the glycine (G) at amino acid position 202 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.47
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Pathogenic
0.27
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.63
.;D;T;.
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.98
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.98
D;D;D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.85
D;D;D;D
MetaSVM
Uncertain
0.13
D
MutationAssessor
Uncertain
2.8
.;M;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.65
T
PROVEAN
Pathogenic
-6.4
D;D;D;D
REVEL
Uncertain
0.60
Sift
Uncertain
0.0020
D;D;D;D
Sift4G
Uncertain
0.0060
D;D;D;D
Polyphen
1.0
.;D;.;.
Vest4
0.84
MVP
0.93
MPC
0.51
ClinPred
0.97
D
GERP RS
6.0
Varity_R
0.90
gMVP
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.94
SpliceAI score (max)
0.090
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.

Other links and lift over

dbSNP: rs370317706; hg19: chr4-75066980; API