rs949077145

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_ModerateBP6_Very_StrongBS2

The ENST00000484879.1(RB1):​n.246A>C variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,610,860 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 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

RB1
ENST00000484879.1 non_coding_transcript_exon

Scores

2
Splicing: ADA: 0.007400
2

Clinical Significance

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

Conservation

PhyloP100: 0.451

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • hereditary retinoblastoma
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Ambry Genetics
  • retinoblastoma
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • melanoma
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.44).
BP6
Variant 13-48476692-A-C is Benign according to our data. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr13-48476692-A-C is described in CliVar as Likely_benign. Clinvar id is 389862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 7 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RB1NM_000321.3 linkc.2521-9A>C intron_variant Intron 24 of 26 ENST00000267163.6 NP_000312.2 P06400A0A024RDV3
RB1NM_001407165.1 linkc.2521-9A>C intron_variant Intron 24 of 26 NP_001394094.1
RB1NM_001407168.1 linkc.-30-9A>C intron_variant Intron 1 of 3 NP_001394097.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RB1ENST00000267163.6 linkc.2521-9A>C intron_variant Intron 24 of 26 1 NM_000321.3 ENSP00000267163.4 P06400

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
250740
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1458658
Hom.:
0
Cov.:
30
AF XY:
0.0000165
AC XY:
12
AN XY:
725778
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33380
American (AMR)
AF:
0.00
AC:
0
AN:
44610
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26088
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39664
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86172
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53300
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.0000153
AC:
17
AN:
1109420
Other (OTH)
AF:
0.00
AC:
0
AN:
60264
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152202
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74354
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41458
American (AMR)
AF:
0.00
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.439
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000510
Hom.:
0
Bravo
AF:
0.0000378
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Retinoblastoma Benign:2
Oct 09, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 20, 2023
All of Us Research Program, National Institutes of Health
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Oct 05, 2016
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
12
DANN
Benign
0.73
PhyloP100
0.45

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0074
dbscSNV1_RF
Benign
0.088
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

Other links and lift over

dbSNP: rs949077145; hg19: chr13-49050828; API