chr9-19380191-T-C

Position:

• chr9-19380191-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001010.3(RPS6):​c.5A>G​(p.Lys2Arg) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000137 in 1,461,154 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: RPS6 NM_001010.3 missense, splice_region
• Scores: Splicing: ADA: 0.9997
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.05

Genes affected

RPS6 (HGNC:10429): (ribosomal protein S6) 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 cytoplasmic ribosomal protein that is a component of the 40S subunit. The protein belongs to the S6E family of ribosomal proteins. It is the major substrate of protein kinases in the ribosome, with subsets of five C-terminal serine residues phosphorylated by different protein kinases. Phosphorylation is induced by a wide range of stimuli, including growth factors, tumor-promoting agents, and mitogens. Dephosphorylation occurs at growth arrest. The protein may contribute to the control of cell growth and proliferation through the selective translation of particular classes of mRNA. 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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RPS6	NM_001010.3	c.5A>G	p.Lys2Arg	missense_variant, splice_region_variant	1/6	ENST00000380394.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RPS6	ENST00000380394.9	c.5A>G	p.Lys2Arg	missense_variant, splice_region_variant	1/6	1	NM_001010.3	P1
RPS6	ENST00000380384.5	c.-660A>G		5_prime_UTR_variant	1/5	1
RPS6	ENST00000380381.3	c.5A>G	p.Lys2Arg	missense_variant, splice_region_variant	1/2	2
RPS6	ENST00000315377.4	c.-191A>G		5_prime_UTR_variant	1/6	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000796 AC: 2 AN: 251348 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135848

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461154 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726886

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 26, 2024

The c.5A>G (p.K2R) alteration is located in exon 1 (coding exon 1) of the RPS6 gene. This alteration results from a A to G substitution at nucleotide position 5, causing the lysine (K) at amino acid position 2 to be replaced by an arginine (R). 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	Uncertain	0.56
BayesDel_addAF	Benign	-0.0096	T
BayesDel_noAF	Uncertain	-0.080
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.43	T;.
Eigen	Uncertain	0.62
Eigen_PC	Uncertain	0.53
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	D;D
M_CAP	Uncertain	0.23	D
MetaRNN	Pathogenic	0.89	D;D
MetaSVM	Uncertain	-0.098	T
MutationAssessor	Uncertain	2.8	M;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.87	D
PROVEAN	Benign	-2.2	N;D
REVEL	Uncertain	0.43
Sift	Benign	0.038	D;D
Sift4G	Uncertain	0.025	D;D
Polyphen		0.97	D;.
Vest4		0.82
MutPred		0.72		Loss of ubiquitination at K2 (P = 0.0174);Loss of ubiquitination at K2 (P = 0.0174);
MVP		0.81
ClinPred		0.96	D
GERP RS		4.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.53
gMVP		0.90

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.98
SpliceAI score (max)		0.010		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: rs1287601493; hg19: chr9-19380189;