12-120197456-G-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001002.4(RPLP0):c.658C>A(p.Arg220Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,586 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R220C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RPLP0
NM_001002.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.99

Publications

0 publications found

Variant links:

Genes affected

RPLP0 (HGNC:10371): (ribosomal protein lateral stalk subunit P0) Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 60S subunit. The protein, which is the functional equivalent of the E. coli L10 ribosomal protein, belongs to the L10P family of ribosomal proteins. It is a neutral phosphoprotein with a C-terminal end that is nearly identical to the C-terminal ends of the acidic ribosomal phosphoproteins P1 and P2. The P0 protein can interact with P1 and P2 to form a pentameric complex consisting of P1 and P2 dimers, and a P0 monomer. The protein is located in the cytoplasm. Transcript variants derived from alternative splicing exist; they encode the same protein. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. [provided by RefSeq, Jul 2008]

RPLP0 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3276658).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RPLP0	NM_001002.4 link	c.658C>A	p.Arg220Ser	missense_variant	Exon 7 of 8	ENST00000392514.9	NP_000993.1	P05388-1A0A024RBS2
RPLP0	NM_053275.4 link	c.658C>A	p.Arg220Ser	missense_variant	Exon 7 of 8		NP_444505.1	P05388-1A0A024RBS2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RPLP0	ENST00000392514.9 link	c.658C>A	p.Arg220Ser	missense_variant	Exon 7 of 8	1	NM_001002.4	ENSP00000376299.4		P05388-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250772

AF XY:

0.00000738

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461586

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727104

show subpopulations

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

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86244

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111794

Other (OTH)

AF:

0.00

AC:

AN:

60374

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 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: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 16, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.658C>A (p.R220S) alteration is located in exon 7 (coding exon 6) of the RPLP0 gene. This alteration results from a C to A substitution at nucleotide position 658, causing the arginine (R) at amino acid position 220 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

Pathogenic

0.59

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.31

CADD

Uncertain

(source)

DANN

Benign

0.94

DEOGEN2

Benign

0.21

T;T;T;.;T;T;T;T;.

Eigen

Benign

-0.063

Eigen_PC

Benign

0.14

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.95

.;.;D;D;D;D;D;D;D

M_CAP

Benign

0.0041

MetaRNN

Benign

0.33

T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.94

PhyloP100

7.0

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-1.3

N;N;N;N;N;N;N;N;N

REVEL

Uncertain

0.29

Sift

Benign

0.90

T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.82

T;T;T;T;T;T;T;T;.

Polyphen

0.015

B;B;.;.;.;B;.;.;.

Vest4

0.88

MutPred

0.49

Gain of catalytic residue at L216 (P = 0.0055);Gain of catalytic residue at L216 (P = 0.0055);.;.;.;Gain of catalytic residue at L216 (P = 0.0055);.;.;Gain of catalytic residue at L216 (P = 0.0055);

MVP

0.76

MPC

0.77

ClinPred

0.47

GERP RS

5.3

PromoterAI

0.034

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.37

gMVP

0.86

Mutation Taster

=49/51

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.15

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over