rs1265327

Positions:

• chr4-74229344-C-A
• chr4-74229344-C-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001144978.3(MTHFD2L):​c.805+3950C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.271 in 151,860 control chromosomes in the GnomAD database, including 6,072 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.27 (6072 hom., cov: 32)
• Consequence: MTHFD2L NM_001144978.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0140

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.388 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MTHFD2L	NM_001144978.3	c.805+3950C>A		intron_variant		ENST00000325278.7	NP_001138450.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MTHFD2L	ENST00000325278.7	c.805+3950C>A		intron_variant		5	NM_001144978.3	ENSP00000321984	P1

Frequencies

GnomAD3 genomes AF: 0.271 AC: 41050 AN: 151742 Hom.: 6058 Cov.: 32

Gnomad AFR AF: 0.393

Gnomad AMI AF: 0.140

Gnomad AMR AF: 0.292

Gnomad ASJ AF: 0.194

Gnomad EAS AF: 0.224

Gnomad SAS AF: 0.206

Gnomad FIN AF: 0.222

Gnomad MID AF: 0.165

Gnomad NFE AF: 0.213

Gnomad OTH AF: 0.264

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.271 AC: 41110 AN: 151860 Hom.: 6072 Cov.: 32 AF XY: 0.269 AC XY: 19969 AN XY: 74202

Gnomad4 AFR AF: 0.393

Gnomad4 AMR AF: 0.292

Gnomad4 ASJ AF: 0.194

Gnomad4 EAS AF: 0.223

Gnomad4 SAS AF: 0.206

Gnomad4 FIN AF: 0.222

Gnomad4 NFE AF: 0.213

Gnomad4 OTH AF: 0.264

Alfa AF: 0.218 Hom.: 7512

Bravo AF: 0.284

Asia WGS AF: 0.236 AC: 823 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	2.3
DANN	Benign	0.51

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

Other links and lift over

dbSNP: rs1265327; hg19: chr4-75095061;