dbSNP rs540283096: MRM1:p.Ala65Thr (chr17-36602003-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_024864.5(MRM1):c.193G>A(p.Ala65Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 152,196 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A65S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

MRM1
NM_024864.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.395

Publications

0 publications found

Variant links:

Genes affected

MRM1 (HGNC:26202): (mitochondrial rRNA methyltransferase 1) Enables rRNA (guanosine-2'-O-)-methyltransferase activity. Predicted to be involved in rRNA 2'-O-methylation. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

MRM1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14536455).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MRM1	NM_024864.5 link	c.193G>A	p.Ala65Thr	missense_variant	Exon 1 of 5	ENST00000614766.5	NP_079140.2	Q6IN84-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MRM1	ENST00000614766.5 link	c.193G>A	p.Ala65Thr	missense_variant	Exon 1 of 5	1	NM_024864.5	ENSP00000481559.1		Q6IN84-1
MRM1	ENST00000612760.1 link	c.-217G>A		5_prime_UTR_variant	Exon 1 of 5	1		ENSP00000482526.1		A0A087WZC1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152196

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1453434

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

722896

African (AFR)

AF:

0.00

AC:

AN:

33400

American (AMR)

AF:

0.00

AC:

AN:

44476

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25824

East Asian (EAS)

AF:

0.00

AC:

AN:

39536

South Asian (SAS)

AF:

0.00

AC:

AN:

85730

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48848

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5526

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110042

Other (OTH)

AF:

0.00

AC:

AN:

60052

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74362

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000482

AC:

AN:

41464

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68016

Other (OTH)

AF:

0.00

AC:

AN:

2094

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.096

BayesDel_addAF

Benign

-0.018

BayesDel_noAF

Benign

-0.26

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.026

Eigen

Benign

0.018

Eigen_PC

Benign

-0.021

FATHMM_MKL

Benign

0.33

M_CAP

Benign

0.075

MetaRNN

Benign

0.15

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

PhyloP100

0.40

PrimateAI

Uncertain

0.72

Sift4G

Benign

0.54

Polyphen

0.83

Vest4

0.10

MutPred

0.55

Gain of relative solvent accessibility (P = 0.09);

MVP

0.38

ClinPred

0.84

GERP RS

3.7

PromoterAI

-0.045

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.16

gMVP

0.60

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

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rs540283096

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over