Genetic Variant METTL13:p.Arg72Trp (chr1-171783800-C-T) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_015935.5(METTL13):c.214C>T(p.Arg72Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000471 in 1,613,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

METTL13
NM_015935.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.47

Publications

0 publications found

Variant links:

Genes affected

METTL13 (HGNC:24248): (methyltransferase 13, eEF1A N-terminus and K55) Predicted to enable methyltransferase activity. Involved in negative regulation of cell cycle G1/S phase transition and negative regulation of transcription by RNA polymerase II. Predicted to be located in mitochondrion and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

METTL13 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.33763778).

BS2

High AC in GnomAdExome4 at 74 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
METTL13	NM_015935.5 link	c.214C>T	p.Arg72Trp	missense_variant	Exon 2 of 8	ENST00000361735.4	NP_057019.3	Q8N6R0-5C4B4C6
METTL13	NM_014955.3 link	c.-45C>T		5_prime_UTR_premature_start_codon_gain_variant	Exon 2 of 8		NP_055770.1	Q8N6R0-3
METTL13	NM_001007239.2 link	c.214C>T	p.Arg72Trp	missense_variant	Exon 2 of 8		NP_001007240.1	Q8N6R0-1
METTL13	NM_014955.3 link	c.-45C>T		5_prime_UTR_variant	Exon 2 of 8		NP_055770.1	Q8N6R0-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
METTL13	ENST00000361735.4 link	c.214C>T	p.Arg72Trp	missense_variant	Exon 2 of 8	1	NM_015935.5	ENSP00000354920.3		Q8N6R0-5

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152098

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000278

AC:

AN:

251364

AF XY:

0.0000294

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000528

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000506

AC:

AN:

1461788

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

727194

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26118

East Asian (EAS)

AF:

0.000126

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000477

AC:

AN:

1111954

Other (OTH)

AF:

0.000199

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152098

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74278

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41398

American (AMR)

AF:

0.00

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 19, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.214C>T (p.R72W) alteration is located in exon 2 (coding exon 2) of the METTL13 gene. This alteration results from a C to T substitution at nucleotide position 214, causing the arginine (R) at amino acid position 72 to be replaced by a tryptophan (W). 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

0.080

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.30

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.21

.;T

Eigen

Benign

0.18

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.87

LIST_S2

Uncertain

0.97

D;D

M_CAP

Benign

0.031

MetaRNN

Benign

0.34

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Pathogenic

3.0

M;M

PhyloP100

1.5

PrimateAI

Benign

0.22

PROVEAN

Uncertain

-4.2

D;D

REVEL

Benign

0.15

Sift

Uncertain

0.013

D;D

Sift4G

Uncertain

0.0040

D;D

Polyphen

0.89

P;D

Vest4

0.32

MutPred

0.61

Loss of solvent accessibility (P = 0.086);Loss of solvent accessibility (P = 0.086);

MVP

0.64

MPC

0.66

ClinPred

0.73

GERP RS

2.2

Varity_R

0.22

gMVP

0.32

Mutation Taster

=76/24

polymorphism

(source)

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

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1-171783800-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over