dbSNP rs886045191: MTHFR:c.*367_*369dupCTT (chr1-11790310-T-TAAG) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_005957.5(MTHFR):c.*367_*369dupCTT variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000243 in 535,178 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

MTHFR
NM_005957.5 3_prime_UTR

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.06

Publications

0 publications found

Variant links:

Genes affected

MTHFR (HGNC:7436): (methylenetetrahydrofolate reductase) The protein encoded by this gene catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate, a co-substrate for homocysteine remethylation to methionine. Genetic variation in this gene influences susceptibility to occlusive vascular disease, neural tube defects, colon cancer and acute leukemia, and mutations in this gene are associated with methylenetetrahydrofolate reductase deficiency.[provided by RefSeq, Oct 2009]

MTHFR Gene-Disease associations (from GenCC):

homocystinuria due to methylene tetrahydrofolate reductase deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, ClinGen, Orphanet, Labcorp Genetics (formerly Invitae)

MTHFR links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005957.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
MTHFR	NM_005957.5	MANE Select	c.367_369dupCTT	3_prime_UTR	Exon 12 of 12	NP_005948.3
MTHFR	NM_001330358.2		c.367_369dupCTT	3_prime_UTR	Exon 12 of 12	NP_001317287.1	P42898-2
MTHFR	NM_001410750.1		c.367_369dupCTT	3_prime_UTR	Exon 12 of 12	NP_001397679.1	Q5SNW7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
MTHFR	ENST00000376590.9	TSL:1 MANE Select	c.367_369dupCTT	3_prime_UTR	Exon 12 of 12	ENSP00000365775.3	P42898-1
MTHFR	ENST00000423400.7	TSL:1	c.367_369dupCTT	3_prime_UTR	Exon 12 of 12	ENSP00000398908.3	Q5SNW7
MTHFR	ENST00000376592.6	TSL:1	c.367_369dupCTT	3_prime_UTR	Exon 12 of 12	ENSP00000365777.1	P42898-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000578

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

GnomAD4 exome

AF:

0.0000261

AC:

AN:

383056

Hom.:

Cov.:

AF XY:

0.0000354

AC XY:

AN XY:

197862

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

11804

American (AMR)

AF:

0.00

AC:

AN:

14714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

12396

East Asian (EAS)

AF:

0.000338

AC:

AN:

29558

South Asian (SAS)

AF:

0.00

AC:

AN:

26586

European-Finnish (FIN)

AF:

0.00

AC:

AN:

27338

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1792

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

235646

Other (OTH)

AF:

0.00

AC:

AN:

23222

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.515

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000197

AC:

AN:

152122

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74286

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41442

American (AMR)

AF:

0.00

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000578

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67994

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Neural tube defects, folate-sensitive (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.1

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over