rs200744141

Variant names:

• chr14-64449557-C-A
• rs200744141
• NM_005956.4:c.2392C>A

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_005956.4(MTHFD1):​c.2392C>A​(p.Leu798Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: MTHFD1 NM_005956.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.80
• Publications: 1 publications found

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]

ZBTB25 (HGNC:13112): (zinc finger and BTB domain containing 25) Predicted to enable DNA-binding transcription repressor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.9

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.2392C>A	p.Leu798Met	missense	Exon 24 of 28	NP_005947.3
	MTHFD1	NM_001364837.1		c.2392C>A	p.Leu798Met	missense	Exon 24 of 27	NP_001351766.1	F5H2F4
	ZBTB25	NM_001304508.1		c.255G>T	p.Gln85His	missense	Exon 3 of 3	NP_001291437.1	G3V2K3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MTHFD1	ENST00000652337.1	MANE Select	c.2392C>A	p.Leu798Met	missense	Exon 24 of 28	ENSP00000498336.1	P11586
	ZBTB25	ENST00000555220.5	TSL:1	c.255G>T	p.Gln85His	missense	Exon 3 of 3	ENSP00000450718.1	G3V2K3
	MTHFD1	ENST00000545908.6	TSL:2	c.2392C>A	p.Leu798Met	missense	Exon 24 of 27	ENSP00000438588.2	F5H2F4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.50
BayesDel_addAF	Benign	-0.015	T
BayesDel_noAF	Benign	-0.26
CADD	Benign	23
DANN	Uncertain	0.99
Eigen	Uncertain	0.26
Eigen_PC	Benign	0.17
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.031	D
MetaRNN	Pathogenic	0.90	D
MetaSVM	Benign	-0.44	T
PhyloP100		2.8
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-1.9	N
REVEL	Uncertain	0.40
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.016	D
Polyphen		1.0	D
Vest4		0.74
MutPred		0.76		Gain of catalytic residue at L854 (P = 0.0053)
MVP		0.52
MPC		1.1
ClinPred		0.93	D
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Mutation Taster		=64/36	polymorphism

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

Other links and lift over

dbSNP: rs200744141; hg19: chr14-64916275;