1-171784367-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_015935.5(METTL13):c.781C>T(p.Arg261Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000267 in 1,574,416 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R261H) has been classified as Uncertain significance.

Frequency

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

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

METTL13
NM_015935.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.49

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 made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.16246006).

BS2

High AC in GnomAdExome at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
METTL13	NM_015935.5 linkuse as main transcript	c.781C>T	p.Arg261Cys	missense_variant	2/8	ENST00000361735.4
METTL13	NM_014955.3 linkuse as main transcript	c.523C>T	p.Arg175Cys	missense_variant	2/8
METTL13	NM_001007239.2 linkuse as main transcript	c.453+328C>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
METTL13	ENST00000361735.4 linkuse as main transcript	c.781C>T	p.Arg261Cys	missense_variant	2/8	1	NM_015935.5	P1	Q8N6R0-5
METTL13	ENST00000367737.9 linkuse as main transcript	c.453+328C>T		intron_variant		1			Q8N6R0-1
METTL13	ENST00000362019.7 linkuse as main transcript	c.523C>T	p.Arg175Cys	missense_variant	2/8	2			Q8N6R0-3
METTL13	ENST00000485629.1 linkuse as main transcript	n.565+328C>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152258

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000651

AC:

AN:

214972

Hom.:

AF XY:

0.0000697

AC XY:

AN XY:

114788

show subpopulations

Gnomad AFR exome

AF:

0.0000644

Gnomad AMR exome

AF:

0.0000324

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000169

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000519

Gnomad NFE exome

AF:

0.0000821

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000274

AC:

AN:

1422158

Hom.:

Cov.:

AF XY:

0.0000327

AC XY:

AN XY:

702820

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000761

Gnomad4 SAS exome

AF:

0.0000381

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000284

Gnomad4 OTH exome

AF:

0.0000341

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74388

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.0000743

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 14, 2023

The c.781C>T (p.R261C) 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 781, causing the arginine (R) at amino acid position 261 to be replaced by a cysteine (C). 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

0.090

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.48

Cadd

Benign

Dann

Uncertain

0.99

Eigen

Benign

-0.20

Eigen_PC

Benign

-0.067

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.79

T;T

M_CAP

Benign

0.0089

MetaRNN

Benign

0.16

T;T

MetaSVM

Benign

-1.1

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-3.4

D;D

REVEL

Benign

0.10

Sift

Benign

0.030

D;D

Sift4G

Uncertain

0.014

D;D

Polyphen

0.0030

.;B

Vest4

0.26

MutPred

0.43

.;Gain of methylation at K262 (P = 0.0204);

MVP

0.37

MPC

0.30

ClinPred

0.11

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.12

gMVP

0.44

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over