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GeneBe

7-2239588-A-G

Variant summary

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

The NM_013393.3(MRM2):c.128T>C(p.Phe43Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,812 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 (★). Synonymous variant affecting the same amino acid position (i.e. F43F) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

MRM2
NM_013393.3 missense

Scores

4
9
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.64
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]

Genome browser will be placed here

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, 0.837

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MRM2NM_013393.3 linkuse as main transcriptc.128T>C p.Phe43Ser missense_variant 2/3 ENST00000242257.14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MRM2ENST00000242257.14 linkuse as main transcriptc.128T>C p.Phe43Ser missense_variant 2/31 NM_013393.3 P1
MRM2ENST00000486040.1 linkuse as main transcriptc.128T>C p.Phe43Ser missense_variant, NMD_transcript_variant 2/41
MRM2ENST00000440306.3 linkuse as main transcriptc.128T>C p.Phe43Ser missense_variant 2/35 P1
MRM2ENST00000467199.5 linkuse as main transcriptn.315T>C non_coding_transcript_exon_variant 2/32

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251398
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135892
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461812
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727198
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxOct 04, 2022Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.84
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
-0.070
Cadd
Uncertain
23
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T;T
Eigen
Uncertain
0.19
Eigen_PC
Benign
0.056
FATHMM_MKL
Uncertain
0.77
D
M_CAP
Benign
0.048
D
MetaRNN
Pathogenic
0.84
D;D
MetaSVM
Benign
-0.49
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-5.9
D;D
REVEL
Uncertain
0.30
Sift
Uncertain
0.0010
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
0.96
D;D
Vest4
0.67
MutPred
0.79
Gain of disorder (P = 0.0058);Gain of disorder (P = 0.0058);
MVP
0.76
MPC
0.90
ClinPred
0.99
D
GERP RS
2.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.80
gMVP
0.79

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.

Other links and lift over

dbSNP: rs1302683615; hg19: chr7-2279223; API