3-29281722-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001003793.3(RBMS3):c.41A>G(p.Tyr14Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,366 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: RBMS3 NM_001003793.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.79

Genes affected

RBMS3 (HGNC:13427): (RNA binding motif single stranded interacting protein 3) This gene encodes an RNA-binding protein that belongs to the c-myc gene single-strand binding protein family. These proteins are characterized by the presence of two sets of ribonucleoprotein consensus sequence (RNP-CS) that contain conserved motifs, RNP1 and RNP2, originally described in RNA binding proteins, and required for DNA binding. These proteins have been implicated in such diverse functions as DNA replication, gene transcription, cell cycle progression and apoptosis. The encoded protein was isolated by virtue of its binding to an upstream element of the alpha2(I) collagen promoter. The observation that this protein localizes mostly in the cytoplasm suggests that it may be involved in a cytoplasmic function such as controlling RNA metabolism, rather than transcription. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2010]

RBMS3-AS3 (HGNC:39989): (RBMS3 antisense RNA 3)

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RBMS3	NM_001003793.3	c.41A>G	p.Tyr14Cys	missense_variant	1/15	ENST00000383767.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RBMS3	ENST00000383767.7	c.41A>G	p.Tyr14Cys	missense_variant	1/15	1	NM_001003793.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461366 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727014

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: 0.00000270

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

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

Sep 28, 2022

The c.41A>G (p.Y14C) alteration is located in exon 1 (coding exon 1) of the RBMS3 gene. This alteration results from a A to G substitution at nucleotide position 41, causing the tyrosine (Y) at amino acid position 14 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	0.26
BayesDel_addAF	Uncertain	0.067	T
BayesDel_noAF	Benign	-0.14
Cadd	Uncertain	25
Dann	Uncertain	1.0
Eigen	Pathogenic	0.74
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.93	D;D;D;D;D;D;D
M_CAP	Benign	0.019	T
MetaRNN	Uncertain	0.49	T;T;T;T;T;T;T
MetaSVM	Benign	-0.97	T
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D
PrimateAI	Pathogenic	0.94	D
PROVEAN	Benign	-1.7	N;N;N;N;N;N;N
REVEL	Benign	0.29
Sift	Uncertain	0.0040	D;D;D;D;D;D;D
Sift4G	Uncertain	0.025	D;T;T;T;D;T;T
Polyphen		1.0	.;D;.;.;D;.;D
Vest4		0.67
MutPred		0.40		Loss of phosphorylation at Y14 (P = 0.0341);Loss of phosphorylation at Y14 (P = 0.0341);Loss of phosphorylation at Y14 (P = 0.0341);Loss of phosphorylation at Y14 (P = 0.0341);Loss of phosphorylation at Y14 (P = 0.0341);Loss of phosphorylation at Y14 (P = 0.0341);Loss of phosphorylation at Y14 (P = 0.0341);
MVP		0.22
MPC		1.2
ClinPred		0.97	D
GERP RS		5.4
Varity_R		0.31
gMVP		0.73

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: rs2031800670; hg19: chr3-29323213;