chr6-150887969-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_015440.5(MTHFD1L):​c.768G>T​(p.Gln256His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,600,338 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

MTHFD1L
NM_015440.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.881
Variant links:
Genes affected
MTHFD1L (HGNC:21055): (methylenetetrahydrofolate dehydrogenase (NADP+ dependent) 1 like) The protein encoded by this gene is involved in the synthesis of tetrahydrofolate (THF) in the mitochondrion. THF is important in the de novo synthesis of purines and thymidylate and in the regeneration of methionine from homocysteine. Several transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jun 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19159395).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MTHFD1LNM_015440.5 linkuse as main transcriptc.768G>T p.Gln256His missense_variant 7/28 ENST00000367321.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTHFD1LENST00000367321.8 linkuse as main transcriptc.768G>T p.Gln256His missense_variant 7/281 NM_015440.5 P4Q6UB35-1

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152200
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000289
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000293
AC:
7
AN:
238588
Hom.:
0
AF XY:
0.00000776
AC XY:
1
AN XY:
128886
show subpopulations
Gnomad AFR exome
AF:
0.000379
Gnomad AMR exome
AF:
0.0000327
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:
0.00000691
AC:
10
AN:
1448138
Hom.:
0
Cov.:
30
AF XY:
0.00000417
AC XY:
3
AN XY:
719998
show subpopulations
Gnomad4 AFR exome
AF:
0.000184
Gnomad4 AMR exome
AF:
0.0000483
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:
0.0000334
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152200
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.000289
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000386
Hom.:
0
Bravo
AF:
0.000121
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3

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 GeneticsFeb 15, 2023The c.771G>T (p.Q257H) alteration is located in exon 7 (coding exon 7) of the MTHFD1L gene. This alteration results from a G to T substitution at nucleotide position 771, causing the glutamine (Q) at amino acid position 257 to be replaced by a histidine (H). 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
Benign
0.14
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
17
DANN
Uncertain
0.98
DEOGEN2
Benign
0.095
T;.;.;T
Eigen
Benign
0.084
Eigen_PC
Benign
0.13
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.71
T;T;T;T
M_CAP
Benign
0.0060
T
MetaRNN
Benign
0.19
T;T;T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
1.7
L;.;L;.
MutationTaster
Benign
0.72
D;D
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.040
N;.;N;.
REVEL
Benign
0.098
Sift
Benign
0.047
D;.;T;.
Sift4G
Uncertain
0.039
D;D;D;D
Polyphen
0.0010
B;B;B;.
Vest4
0.33
MutPred
0.69
Gain of ubiquitination at K260 (P = 0.1025);.;Gain of ubiquitination at K260 (P = 0.1025);.;
MVP
0.67
MPC
0.15
ClinPred
0.047
T
GERP RS
4.5
Varity_R
0.063
gMVP
0.44

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.

Other links and lift over

dbSNP: rs144664749; hg19: chr6-151209105; API