dbSNP rs199528932: MRM2:p.Arg163Trp (chr7-2235376-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_013393.3(MRM2):c.487C>T(p.Arg163Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00037 in 1,613,928 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 0.00026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00038 ( 0 hom. )

Consequence

MRM2
NM_013393.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.58

Variant links:

Genes affected

MRM2 (HGNC:16352): (mitochondrial rRNA methyltransferase 2) The protein encoded by this gene is a member of the S-adenosylmethionine-binding protein family. It is a nucleolar protein and it may be involved in the processing and modification of rRNA. This gene has been suggested to be involved in cell cycle control and DNA repair. [provided by RefSeq, Jul 2008]

MRM2 links:

ENSG00000286192 (HGNC:):

ENSG00000286192 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17825285).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MRM2	NM_013393.3 link	c.487C>T	p.Arg163Trp	missense_variant	Exon 3 of 3	ENST00000242257.14	NP_037525.1	Q9UI43V9HWJ9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MRM2	ENST00000242257.14 link	c.487C>T	p.Arg163Trp	missense_variant	Exon 3 of 3	1	NM_013393.3	ENSP00000242257.8	Q9UI43
ENSG00000286192	ENST00000651235.1 link	n.*942C>T		non_coding_transcript_exon_variant	Exon 4 of 24			ENSP00000498895.1	A0A3B3ITW8
ENSG00000286192	ENST00000651235.1 link	n.*942C>T		3_prime_UTR_variant	Exon 4 of 24			ENSP00000498895.1	A0A3B3ITW8

Frequencies

GnomAD3 genomes

AF:

0.000263

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

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:

0.000412

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.000263

AC:

AN:

251428

Hom.:

AF XY:

0.000302

AC XY:

AN XY:

135908

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000484

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000381

AC:

557

AN:

1461798

Hom.:

Cov.:

AF XY:

0.000360

AC XY:

262

AN XY:

727192

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000465

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000263

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.000256

AC XY:

AN XY:

74310

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.000328

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000412

Gnomad4 OTH

AF:

0.000957

Alfa

AF:

0.000440

Hom.:

Bravo

AF:

0.000272

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000247

AC:

EpiCase

AF:

0.000382

EpiControl

AF:

0.000652

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 06, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.487C>T (p.R163W) alteration is located in exon 3 (coding exon 3) of the MRM2 gene. This alteration results from a C to T substitution at nucleotide position 487, causing the arginine (R) at amino acid position 163 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

0.18

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.34

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;T;T

Eigen

Benign

-0.23

Eigen_PC

Benign

-0.32

FATHMM_MKL

Benign

0.67

LIST_S2

Uncertain

0.96

.;D;.

M_CAP

Benign

0.035

MetaRNN

Benign

0.18

T;T;T

MetaSVM

Benign

-0.90

PrimateAI

Benign

0.31

PROVEAN

Pathogenic

-6.4

D;.;D

REVEL

Benign

0.20

Sift

Uncertain

0.0010

D;.;D

Sift4G

Uncertain

0.0030

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.36

MVP

0.54

MPC

0.74

ClinPred

0.30

GERP RS

1.1

Varity_R

0.43

gMVP

0.62

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