4-151100526-C-T

Variant names:

• chr4-151100526-C-T
• rs766712231
• NM_001006.5:c.104C>T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3 BS2

The NM_001006.5(RPS3A):​c.104C>T​(p.Ala35Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000932 in 1,608,792 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 (★).

• Frequency:
  • Genomes: 𝑓 0.000046 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000055 (0 hom.)
• Consequence: RPS3A NM_001006.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.78

Genes affected

RPS3A (HGNC:10421): (ribosomal protein S3A) 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 40S subunit. The protein belongs to the S3AE family of ribosomal proteins. It is located in the cytoplasm. Disruption of the gene encoding rat ribosomal protein S3a, also named v-fos transformation effector protein, in v-fos-transformed rat cells results in reversion of the transformed phenotype. This gene is co-transcribed with the U73A and U73B small nucleolar RNA genes, which are located in its fourth and third introns, respectively. As is typical for genes encoding ribosomal proteins, there are multiple processed pseudogenes of this gene dispersed through the genome. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, May 2012]

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PP3: MetaRNN computational evidence supports a deleterious effect, 0.818
• BS2: High AC in GnomAd4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RPS3A	NM_001006.5	c.104C>T	p.Ala35Val	missense_variant	Exon 2 of 6	ENST00000274065.9	NP_000997.1
RPS3A	NM_001267699.2	c.104C>T	p.Ala35Val	missense_variant	Exon 2 of 3		NP_001254628.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RPS3A	ENST00000274065.9	c.104C>T	p.Ala35Val	missense_variant	Exon 2 of 6	1	NM_001006.5	ENSP00000346050.3

Frequencies

GnomAD3 genomes AF: 0.0000460 AC: 7 AN: 152204 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000145

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000119 AC: 3 AN: 251250 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135822

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.0000290

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000549 AC: 8 AN: 1456588 Hom.: 0 Cov.: 27 AF XY: 0.00000414 AC XY: 3 AN XY: 725014

Gnomad4 AFR exome AF: 0.000180

Gnomad4 AMR exome AF: 0.0000224

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.0000460 AC: 7 AN: 152204 Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3 AN XY: 74352

Gnomad4 AFR AF: 0.000145

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000330 Hom.: 0

Bravo AF: 0.0000567

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

May 14, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.104C>T (p.A35V) alteration is located in exon 2 (coding exon 2) of the RPS3A gene. This alteration results from a C to T substitution at nucleotide position 104, causing the alanine (A) at amino acid position 35 to be replaced by a valine (V). 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	0.99
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.40
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.61	D;T;T;T;.
Eigen	Pathogenic	0.70
Eigen_PC	Pathogenic	0.71
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.92	D;D;D;D;D
M_CAP	Benign	0.044	D
MetaRNN	Pathogenic	0.82	D;D;D;D;D
MetaSVM	Uncertain	-0.057	T
MutationAssessor	Uncertain	2.5	M;.;.;.;.
PrimateAI	Pathogenic	0.81	D
PROVEAN	Uncertain	-3.6	D;D;D;D;D
REVEL	Pathogenic	0.79
Sift	Pathogenic	0.0	D;D;D;D;D
Sift4G	Uncertain	0.038	D;D;D;D;.
Polyphen		0.88	P;.;.;.;.
Vest4		0.96
MVP		0.68
MPC		1.3
ClinPred		0.96	D
GERP RS		5.4
Varity_R		0.84
gMVP		0.91

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

Other links and lift over

dbSNP: rs766712231; hg19: chr4-152021678;