Variant chr13-48307377-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_000321.3(RB1):c.235G>T(p.Glu79Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)

Consequence

RB1
NM_000321.3 stop_gained

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 2.20

Variant links:

Genes affected

RB1 (HGNC:9884): (RB transcriptional corepressor 1) The protein encoded by this gene is a negative regulator of the cell cycle and was the first tumor suppressor gene found. The encoded protein also stabilizes constitutive heterochromatin to maintain the overall chromatin structure. The active, hypophosphorylated form of the protein binds transcription factor E2F1. Defects in this gene are a cause of childhood cancer retinoblastoma (RB), bladder cancer, and osteogenic sarcoma. [provided by RefSeq, Jul 2008]

RB1 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 13-48307377-G-T is Pathogenic according to our data. Variant chr13-48307377-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 3237114.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
RB1	NM_000321.3 linkuse as main transcript	c.235G>T	p.Glu79Ter	stop_gained	2/27	ENST00000267163.6	NP_000312.2
RB1	NM_001407165.1 linkuse as main transcript	c.235G>T	p.Glu79Ter	stop_gained	2/27		NP_001394094.1
RB1	NM_001407166.1 linkuse as main transcript	c.235G>T	p.Glu79Ter	stop_gained	2/17		NP_001394095.1
RB1	NM_001407167.1 linkuse as main transcript	c.235G>T	p.Glu79Ter	stop_gained	2/3		NP_001394096.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RB1	ENST00000267163.6 linkuse as main transcript	c.235G>T	p.Glu79Ter	stop_gained	2/27	1	NM_000321.3	ENSP00000267163	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Retinoblastoma

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Genetic Diagnostic Laboratory, University of Pennsylvania School of Medicine

May 20, 2024

Case and Pedigree Information: BILATERAL CASES:0, UNILATERAL CASES:1, TOTAL CASES:1, PEDIGREES:1. ACMG Codes Applied:PVS1, PM2 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.63

BayesDel_noAF

Pathogenic

0.54

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Pathogenic

0.81

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Benign

0.74

MutationTaster

Benign

1.0

Vest4

0.82

GERP RS

3.1

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