Variant 13-102686144-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001010977.3(METTL21C):c.682A>G(p.Ser228Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000185 in 1,614,090 control chromosomes in the GnomAD database, including 1 homozygotes. 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 (★).

Frequency

Genomes: 𝑓 0.00020 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

METTL21C
NM_001010977.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.03

Variant links:

Genes affected

METTL21C (HGNC:33717): (methyltransferase 21C, AARS1 lysine) Enables heat shock protein binding activity and protein-lysine N-methyltransferase activity. Involved in protein methylation. Located in nucleus. Part of protein-containing complex. [provided by Alliance of Genome Resources, Apr 2022]

METTL21C links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0067317784).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
METTL21C	NM_001010977.3 linkuse as main transcript	c.682A>G	p.Ser228Gly	missense_variant	4/4	ENST00000267273.7
METTL21C	XM_047430117.1 linkuse as main transcript	c.682A>G	p.Ser228Gly	missense_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
METTL21C	ENST00000267273.7 linkuse as main transcript	c.682A>G	p.Ser228Gly	missense_variant	4/4	1	NM_001010977.3	P1

Frequencies

GnomAD3 genomes

AF:

0.000204

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00720

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000346

AC:

AN:

251322

Hom.:

AF XY:

0.000346

AC XY:

AN XY:

135826

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00775

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000704

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000183

AC:

267

AN:

1461854

Hom.:

Cov.:

AF XY:

0.000179

AC XY:

130

AN XY:

727224

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00719

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000279

Gnomad4 OTH exome

AF:

0.000795

GnomAD4 genome

AF:

0.000204

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00720

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000408

Hom.:

Bravo

AF:

0.000223

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000288

AC:

EpiCase

AF:

0.000109

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 09, 2021

The c.682A>G (p.S228G) alteration is located in exon 4 (coding exon 4) of the METTL21C gene. This alteration results from a A to G substitution at nucleotide position 682, causing the serine (S) at amino acid position 228 to be replaced by a glycine (G). 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

0.11

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.57

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.011

Eigen

Benign

-0.055

Eigen_PC

Benign

0.13

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.77

M_CAP

Benign

0.011

MetaRNN

Benign

0.0067

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

MutationTaster

Benign

0.91

PrimateAI

Benign

0.47

PROVEAN

Benign

-2.0

REVEL

Benign

0.056

Sift

Benign

0.098

Sift4G

Benign

0.24

Polyphen

0.14

Vest4

0.12

MVP

0.21

MPC

0.36

ClinPred

0.088

GERP RS

5.7

Varity_R

0.50

gMVP

0.31

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