Variant chr15-88464855-C-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_022163.4(MRPL46):c.437G>T(p.Arg146Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

MRPL46
NM_022163.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.16

Variant links:

Genes affected

MRPL46 (HGNC:1192): (mitochondrial ribosomal protein L46) Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subunit. They have an estimated 75% protein to rRNA composition compared to prokaryotic ribosomes, where this ratio is reversed. Another difference between mammalian mitoribosomes and prokaryotic ribosomes is that the latter contain a 5S rRNA. Among different species, the proteins comprising the mitoribosome differ greatly in sequence, and sometimes in biochemical properties, which prevents easy recognition by sequence homology. This gene encodes a 39S subunit protein. [provided by RefSeq, Jul 2008]

MRPL46 links:

ENSG00000173867 (HGNC:):

ENSG00000173867 links:

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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=0.1093232).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MRPL46	NM_022163.4 linkuse as main transcript	c.437G>T	p.Arg146Leu	missense_variant	3/4	ENST00000312475.5	NP_071446.2	Q9H2W6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MRPL46	ENST00000312475.5 linkuse as main transcript	c.437G>T	p.Arg146Leu	missense_variant	3/4	1	NM_022163.4	ENSP00000312311.4		Q9H2W6
ENSG00000173867	ENST00000649547 linkuse as main transcript	c.*961G>T		3_prime_UTR_variant	9/10			ENSP00000497509.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1461476

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727040

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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 12, 2022

The c.437G>T (p.R146L) alteration is located in exon 3 (coding exon 3) of the MRPL46 gene. This alteration results from a G to T substitution at nucleotide position 437, causing the arginine (R) at amino acid position 146 to be replaced by a leucine (L). 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

0.19

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0029

Eigen

Benign

-0.86

Eigen_PC

Benign

-0.80

FATHMM_MKL

Benign

0.63

LIST_S2

Uncertain

0.86

M_CAP

Benign

0.0086

MetaRNN

Benign

0.11

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

PrimateAI

Benign

0.25

PROVEAN

Benign

-0.10

REVEL

Benign

0.038

Sift

Benign

0.28

Sift4G

Benign

0.25

Polyphen

0.026

Vest4

0.28

MutPred

0.40

Loss of phosphorylation at S148 (P = 0.0521);

MVP

0.24

MPC

0.033

ClinPred

0.13

GERP RS

0.50

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.30

gMVP

0.37

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over