12-57768956-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_005371.6(METTL1):​c.*40T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.35 in 1,581,434 control chromosomes in the GnomAD database, including 103,017 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 0.34 ( 9194 hom., cov: 33)
Exomes 𝑓: 0.35 ( 93823 hom. )

Consequence

METTL1
NM_005371.6 3_prime_UTR

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.77
Variant links:
Genes affected
METTL1 (HGNC:7030): (methyltransferase 1, tRNA methylguanosine) This gene is similar in sequence to the S. cerevisiae YDL201w gene. The gene product contains a conserved S-adenosylmethionine-binding motif and is inactivated by phosphorylation. Alternative splice variants encoding different protein isoforms have been described for this gene. A pseudogene has been identified on chromosome X. [provided by RefSeq, Jul 2008]
CYP27B1 (HGNC:2606): (cytochrome P450 family 27 subfamily B member 1) This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. The protein encoded by this gene localizes to the inner mitochondrial membrane where it hydroxylates 25-hydroxyvitamin D3 at the 1alpha position. This reaction synthesizes 1alpha,25-dihydroxyvitamin D3, the active form of vitamin D3, which binds to the vitamin D receptor and regulates calcium metabolism. Thus this enzyme regulates the level of biologically active vitamin D and plays an important role in calcium homeostasis. Mutations in this gene can result in vitamin D-dependent rickets type I. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.637 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
METTL1NM_005371.6 linkuse as main transcriptc.*40T>C 3_prime_UTR_variant 6/6 ENST00000324871.12 NP_005362.3
METTL1NM_023033.4 linkuse as main transcriptc.*218T>C 3_prime_UTR_variant 5/5 NP_075422.3
METTL1XM_005268873.3 linkuse as main transcriptc.*40T>C 3_prime_UTR_variant 7/7 XP_005268930.1
METTL1XM_047428854.1 linkuse as main transcriptc.*40T>C 3_prime_UTR_variant 5/5 XP_047284810.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
METTL1ENST00000324871.12 linkuse as main transcriptc.*40T>C 3_prime_UTR_variant 6/61 NM_005371.6 ENSP00000314441 P1Q9UBP6-1
METTL1ENST00000257848.7 linkuse as main transcriptc.*218T>C 3_prime_UTR_variant 5/51 ENSP00000257848 Q9UBP6-2
METTL1ENST00000547653.1 linkuse as main transcriptc.*218T>C 3_prime_UTR_variant 3/33 ENSP00000447838
CYP27B1ENST00000546609.2 linkuse as main transcriptn.31T>C non_coding_transcript_exon_variant 1/45

Frequencies

GnomAD3 genomes
AF:
0.338
AC:
51388
AN:
151942
Hom.:
9165
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.318
Gnomad AMI
AF:
0.385
Gnomad AMR
AF:
0.285
Gnomad ASJ
AF:
0.298
Gnomad EAS
AF:
0.656
Gnomad SAS
AF:
0.557
Gnomad FIN
AF:
0.378
Gnomad MID
AF:
0.161
Gnomad NFE
AF:
0.320
Gnomad OTH
AF:
0.288
GnomAD3 exomes
AF:
0.384
AC:
93998
AN:
245090
Hom.:
19687
AF XY:
0.390
AC XY:
51534
AN XY:
132258
show subpopulations
Gnomad AFR exome
AF:
0.319
Gnomad AMR exome
AF:
0.363
Gnomad ASJ exome
AF:
0.291
Gnomad EAS exome
AF:
0.634
Gnomad SAS exome
AF:
0.556
Gnomad FIN exome
AF:
0.365
Gnomad NFE exome
AF:
0.325
Gnomad OTH exome
AF:
0.331
GnomAD4 exome
AF:
0.352
AC:
502796
AN:
1429374
Hom.:
93823
Cov.:
33
AF XY:
0.357
AC XY:
251672
AN XY:
704614
show subpopulations
Gnomad4 AFR exome
AF:
0.310
Gnomad4 AMR exome
AF:
0.353
Gnomad4 ASJ exome
AF:
0.301
Gnomad4 EAS exome
AF:
0.700
Gnomad4 SAS exome
AF:
0.545
Gnomad4 FIN exome
AF:
0.358
Gnomad4 NFE exome
AF:
0.327
Gnomad4 OTH exome
AF:
0.348
GnomAD4 genome
AF:
0.338
AC:
51467
AN:
152060
Hom.:
9194
Cov.:
33
AF XY:
0.346
AC XY:
25734
AN XY:
74338
show subpopulations
Gnomad4 AFR
AF:
0.319
Gnomad4 AMR
AF:
0.285
Gnomad4 ASJ
AF:
0.298
Gnomad4 EAS
AF:
0.656
Gnomad4 SAS
AF:
0.559
Gnomad4 FIN
AF:
0.378
Gnomad4 NFE
AF:
0.320
Gnomad4 OTH
AF:
0.294
Alfa
AF:
0.326
Hom.:
13758
Bravo
AF:
0.327
Asia WGS
AF:
0.603
AC:
2093
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
9.9
DANN
Benign
0.83

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: rs703842; hg19: chr12-58162739; COSMIC: COSV55743659; COSMIC: COSV55743659; API