Variant rs183417081 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000321.3(RB1):c.1421+9T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000174 in 1,426,818 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00098 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000078 ( 0 hom. )

Consequence

RB1
NM_000321.3 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.868

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP6

Variant 13-48380093-T-C is Benign according to our data. Variant chr13-48380093-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 237661.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000982 (149/151656) while in subpopulation AFR AF= 0.00347 (144/41498). AF 95% confidence interval is 0.00301. There are 0 homozygotes in gnomad4. There are 57 alleles in male gnomad4 subpopulation. Median coverage is 30. This position pass quality control queck.

BS2

High AC in GnomAd4 at 149 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE	Protein
RB1	NM_000321.3 linkuse as main transcript	c.1421+9T>C	intron_variant	ENST00000267163.6	NP_000312.2
RB1	NM_001407165.1 linkuse as main transcript	c.1421+9T>C	intron_variant		NP_001394094.1
RB1	NM_001407166.1 linkuse as main transcript	c.1421+9T>C	intron_variant		NP_001394095.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RB1	ENST00000267163.6 linkuse as main transcript	c.1421+9T>C		intron_variant		1	NM_000321.3	ENSP00000267163	P1
RB1	ENST00000650461.1 linkuse as main transcript	c.1421+9T>C		intron_variant				ENSP00000497193

Frequencies

GnomAD3 genomes

AF:

0.000983

AC:

149

AN:

151538

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00348

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000959

GnomAD3 exomes

AF:

0.000250

AC:

AN:

132024

Hom.:

AF XY:

0.000180

AC XY:

AN XY:

72062

show subpopulations

Gnomad AFR exome

AF:

0.00407

Gnomad AMR exome

AF:

0.00

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:

0.0000776

AC:

AN:

1275162

Hom.:

Cov.:

AF XY:

0.0000695

AC XY:

AN XY:

633442

show subpopulations

Gnomad4 AFR exome

AF:

0.00332

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:

0.00000101

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.000982

AC:

149

AN:

151656

Hom.:

Cov.:

AF XY:

0.000769

AC XY:

AN XY:

74170

show subpopulations

Gnomad4 AFR

AF:

0.00347

Gnomad4 AMR

AF:

0.000197

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000949

Alfa

AF:

0.000525

Hom.:

Bravo

AF:

0.00105

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Apr 29, 2024

- -

Retinoblastoma

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 28, 2024

- -

Hereditary cancer-predisposing syndrome

Benign:1

Likely benign, criteria provided, single submitter

curation

Sema4, Sema4

Nov 06, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

DANN

Benign

0.55

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over