Genetic Variant MRPS25:p.Gly41Cys (chr3-15065074-C-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_022497.5(MRPS25):c.121G>T(p.Gly41Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000692 in 1,444,746 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: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

MRPS25
NM_022497.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.06

Variant links:

Genes affected

MRPS25 (HGNC:14511): (mitochondrial ribosomal protein S25) 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 28S subunit protein. A pseudogene corresponding to this gene is found on chromosome 4. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

MRPS25 links:

ENSG00000289750 (HGNC:):

ENSG00000289750 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.29708397).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MRPS25	NM_022497.5 link	c.121G>T	p.Gly41Cys	missense_variant	Exon 1 of 4	ENST00000253686.7	NP_071942.1	P82663-1
MRPS25	NR_135246.2 link	n.242G>T		non_coding_transcript_exon_variant	Exon 1 of 5
MRPS25	NR_135247.2 link	n.242G>T		non_coding_transcript_exon_variant	Exon 1 of 5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MRPS25	ENST00000253686.7 link	c.121G>T	p.Gly41Cys	missense_variant	Exon 1 of 4	1	NM_022497.5	ENSP00000253686.2		P82663-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.92e-7

AC:

AN:

1444746

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

717524

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:

9.05e-7

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

Jun 13, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.121G>T (p.G41C) alteration is located in exon 1 (coding exon 1) of the MRPS25 gene. This alteration results from a G to T substitution at nucleotide position 121, causing the glycine (G) at amino acid position 41 to be replaced by a cysteine (C). 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

0.25

BayesDel_addAF

Uncertain

0.016

BayesDel_noAF

Benign

-0.21

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.033

T;.;.

Eigen

Uncertain

0.23

Eigen_PC

Benign

0.22

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.94

D;D;D

M_CAP

Benign

0.034

MetaRNN

Benign

0.30

T;T;T

MetaSVM

Benign

-0.89

MutationAssessor

Benign

1.4

L;L;L

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.9

N;N;N

REVEL

Uncertain

0.37

Sift

Benign

0.039

D;D;D

Sift4G

Uncertain

0.041

D;D;D

Polyphen

0.98

D;.;.

Vest4

0.45

MutPred

0.28

Loss of disorder (P = 0.0041);Loss of disorder (P = 0.0041);Loss of disorder (P = 0.0041);

MVP

0.11

MPC

0.86

ClinPred

0.93

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.32

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

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