Variant chr18-2554773-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_022840.5(METTL4):c.725C>G(p.Ser242Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,532 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: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

METTL4
NM_022840.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.71

Variant links:

Genes affected

METTL4 (HGNC:24726): (methyltransferase 4, N6-adenosine) Enables RNA methyltransferase activity and site-specific DNA-methyltransferase (adenine-specific) activity. Involved in nucleic acid metabolic process; regulation of RNA metabolic process; and regulation of mitochondrial DNA replication. Located in cytosol; mitochondrial matrix; and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

METTL4 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.34634966).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
METTL4	NM_022840.5 linkuse as main transcript	c.725C>G	p.Ser242Cys	missense_variant	4/9	ENST00000574538.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
METTL4	ENST00000574538.2 linkuse as main transcript	c.725C>G	p.Ser242Cys	missense_variant	4/9	1	NM_022840.5	P1
METTL4	ENST00000573134.1 linkuse as main transcript	n.1122C>G		non_coding_transcript_exon_variant	3/7	1
METTL4	ENST00000319888.10 linkuse as main transcript	c.725C>G	p.Ser242Cys	missense_variant	4/8	5
METTL4	ENST00000577166.5 linkuse as main transcript			downstream_gene_variant		4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250874

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135646

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000870

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461532

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727064

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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

Aug 02, 2021

The c.725C>G (p.S242C) alteration is located in exon 4 (coding exon 3) of the METTL4 gene. This alteration results from a C to G substitution at nucleotide position 725, causing the serine (S) at amino acid position 242 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

0.095

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.33

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.024

.;T

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.77

T;T

M_CAP

Benign

0.0046

MetaRNN

Benign

0.35

T;T

MetaSVM

Benign

-0.93

MutationAssessor

Uncertain

2.7

.;M

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-2.4

N;.

REVEL

Benign

0.24

Sift

Uncertain

0.013

D;.

Sift4G

Uncertain

0.013

D;D

Polyphen

1.0

.;D

Vest4

0.51

MutPred

0.52

Gain of helix (P = 0.0225);Gain of helix (P = 0.0225);

MVP

0.61

MPC

0.15

ClinPred

0.48

GERP RS

5.8

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