rs587776786

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PVS1_ModeratePP5

The NM_000321.3(RB1):​c.2212-1G>A variant causes a splice acceptor change involving the alteration of a conserved nucleotide. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.000010 ( 0 hom., cov: 22)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

RB1
NM_000321.3 splice_acceptor

Scores

5
1
1
Splicing: ADA: 1.000
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.60
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.04054539 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
PP5
Variant 13-48464997-G-A is Pathogenic according to our data. Variant chr13-48464997-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 13084.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RB1NM_000321.3 linkuse as main transcriptc.2212-1G>A splice_acceptor_variant ENST00000267163.6 NP_000312.2
RB1NM_001407165.1 linkuse as main transcriptc.2212-1G>A splice_acceptor_variant NP_001394094.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RB1ENST00000267163.6 linkuse as main transcriptc.2212-1G>A splice_acceptor_variant 1 NM_000321.3 ENSP00000267163 P1
RB1ENST00000650461.1 linkuse as main transcriptc.2212-1G>A splice_acceptor_variant ENSP00000497193
RB1ENST00000643064.1 linkuse as main transcriptc.194+83554G>A intron_variant ENSP00000496005

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
1
AN:
98678
Hom.:
0
Cov.:
22
FAILED QC
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000191
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
615906
Hom.:
0
Cov.:
25
AF XY:
0.00
AC XY:
0
AN XY:
326410
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000101
AC:
1
AN:
98678
Hom.:
0
Cov.:
22
AF XY:
0.0000226
AC XY:
1
AN XY:
44268
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000191
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Retinoblastoma Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMNov 01, 1989- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.31
CADD
Pathogenic
34
DANN
Uncertain
1.0
Eigen
Pathogenic
1.2
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.99
D
MutationTaster
Benign
1.0
D
GERP RS
5.3

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.94
SpliceAI score (max)
0.98
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.27
Position offset: 26
DS_AL_spliceai
0.98
Position offset: 1

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.

Other links and lift over

dbSNP: rs587776786; hg19: chr13-49039133; COSMIC: COSV57310648; API