Variant chr16-71283964-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_018348.6(CMTR2):c.1957A>G(p.Arg653Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,756 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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

CMTR2
NM_018348.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.93

Variant links:

Genes affected

CMTR2 (HGNC:25635): (cap methyltransferase 2) Enables mRNA (nucleoside-2'-O-)-methyltransferase activity. Involved in 7-methylguanosine mRNA capping and cap2 mRNA methylation. Located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

CMTR2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.809

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CMTR2	NM_018348.6 linkuse as main transcript	c.1957A>G	p.Arg653Gly	missense_variant	3/3	ENST00000434935.7	NP_060818.4	Q8IYT2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CMTR2	ENST00000434935.7 linkuse as main transcript	c.1957A>G	p.Arg653Gly	missense_variant	3/3	1	NM_018348.6	ENSP00000411148.2		Q8IYT2
CMTR2	ENST00000338099.9 linkuse as main transcript	c.1957A>G	p.Arg653Gly	missense_variant	3/3	1		ENSP00000337512.5		Q8IYT2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000797

AC:

AN:

251038

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135688

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

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:

1461756

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727180

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000447

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

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

Jul 20, 2021

The c.1957A>G (p.R653G) alteration is located in exon 3 (coding exon 1) of the CMTR2 gene. This alteration results from a A to G substitution at nucleotide position 1957, causing the arginine (R) at amino acid position 653 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

Pathogenic

0.89

BayesDel_addAF

Uncertain

0.094

BayesDel_noAF

Uncertain

0.070

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.096

T;T

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Uncertain

0.85

LIST_S2

Benign

0.84

.;T

M_CAP

Benign

0.039

MetaRNN

Pathogenic

0.81

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.4

M;M

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-2.8

D;D

REVEL

Uncertain

0.40

Sift

Uncertain

0.0090

D;D

Sift4G

Uncertain

0.011

D;D

Polyphen

1.0

D;D

Vest4

0.95

MutPred

0.56

Loss of solvent accessibility (P = 0.0159);Loss of solvent accessibility (P = 0.0159);

MVP

0.41

MPC

0.33

ClinPred

0.86

GERP RS

3.2

Varity_R

0.40

gMVP

0.77

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