3-131462785-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_007208.4(MRPL3):c.985C>T(p.Pro329Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000169 in 1,612,932 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 1 hom. )

Consequence

MRPL3
NM_007208.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 5.25

Variant links:

Genes affected

MRPL3 (HGNC:10379): (mitochondrial ribosomal protein L3) 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 that belongs to the L3P ribosomal protein family. A pseudogene corresponding to this gene is found on chromosome 13q. [provided by RefSeq, Jul 2008]

MRPL3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.012918562).

BP6

Variant 3-131462785-G-A is Benign according to our data. Variant chr3-131462785-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1203624.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Likely_benign=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MRPL3	NM_007208.4 linkuse as main transcript	c.985C>T	p.Pro329Ser	missense_variant	10/10	ENST00000264995.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
MRPL3	ENST00000264995.8 linkuse as main transcript	c.985C>T	p.Pro329Ser	missense_variant	10/10	1	NM_007208.4	P1
MRPL3	ENST00000425847.6 linkuse as main transcript	c.1066C>T	p.Pro356Ser	missense_variant	11/11	2
MRPL3	ENST00000511168.5 linkuse as main transcript	c.1030C>T	p.Pro344Ser	missense_variant	10/10	2
MRPL3	ENST00000510043.1 linkuse as main transcript	n.409C>T		non_coding_transcript_exon_variant	4/4	2

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00722

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000319

AC:

AN:

250402

Hom.:

AF XY:

0.000370

AC XY:

AN XY:

135292

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00627

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000884

Gnomad OTH exome

AF:

0.00115

GnomAD4 exome

AF:

0.000167

AC:

244

AN:

1460814

Hom.:

Cov.:

AF XY:

0.000183

AC XY:

133

AN XY:

726698

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00698

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000207

Gnomad4 OTH exome

AF:

0.000630

GnomAD4 genome

AF:

0.000191

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.000162

AC XY:

AN XY:

74300

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00722

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000510

Hom.:

Bravo

AF:

0.000208

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000198

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Invitae	Nov 27, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	May 09, 2022	Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 28, 2023

The c.985C>T (p.P329S) alteration is located in exon 10 (coding exon 10) of the MRPL3 gene. This alteration results from a C to T substitution at nucleotide position 985, causing the proline (P) at amino acid position 329 to be replaced by a serine (S). 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

0.14

BayesDel_addAF

Benign

-0.034

BayesDel_noAF

Benign

-0.11

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.19

T;T

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.032

MetaRNN

Benign

0.013

T;T

MetaSVM

Benign

-0.34

MutationAssessor

Uncertain

2.6

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.48

PROVEAN

Pathogenic

-6.1

D;D

REVEL

Benign

0.22

Sift

Uncertain

0.024

D;D

Sift4G

Uncertain

0.041

D;D

Polyphen

0.52

P;P

Vest4

0.28

MVP

0.90

MPC

0.22

ClinPred

0.30

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.35

gMVP

0.50

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