rs1195873978

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM1BS2

The NM_000321.3(RB1):​c.694C>T​(p.Pro232Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,612,448 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P232P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

RB1
NM_000321.3 missense

Scores

10
8

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 4.08

Publications

2 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: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • 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: Likely_benign. The variant received -2 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 26 uncertain in NM_000321.3
BS2
High AC in GnomAdExome4 at 19 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000321.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RB1
NM_000321.3
MANE Select
c.694C>Tp.Pro232Ser
missense
Exon 7 of 27NP_000312.2P06400
RB1
NM_001407165.1
c.694C>Tp.Pro232Ser
missense
Exon 7 of 27NP_001394094.1A0A3B3IS71
RB1
NM_001407166.1
c.694C>Tp.Pro232Ser
missense
Exon 7 of 17NP_001394095.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RB1
ENST00000267163.6
TSL:1 MANE Select
c.694C>Tp.Pro232Ser
missense
Exon 7 of 27ENSP00000267163.4P06400
RB1
ENST00000467505.6
TSL:1
n.*62C>T
non_coding_transcript_exon
Exon 2 of 22ENSP00000434702.1Q92728
RB1
ENST00000467505.6
TSL:1
n.*62C>T
3_prime_UTR
Exon 2 of 22ENSP00000434702.1Q92728

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151898
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000657
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1460550
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
726644
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33426
American (AMR)
AF:
0.00
AC:
0
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26088
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39546
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86228
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53192
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000171
AC:
19
AN:
1111288
Other (OTH)
AF:
0.00
AC:
0
AN:
60320
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.449
Heterozygous variant carriers
0
2
4
5
7
9
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:
0.0000132
AC:
2
AN:
151898
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74176
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41368
American (AMR)
AF:
0.0000657
AC:
1
AN:
15216
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67906
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
not provided (2)
-
1
1
Retinoblastoma (2)
-
1
-
Hereditary cancer-predisposing syndrome (1)
-
1
-
Malignant tumor of urinary bladder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.050
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.52
D
Eigen
Uncertain
0.37
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.068
D
MetaRNN
Uncertain
0.44
T
MetaSVM
Uncertain
0.40
D
MutationAssessor
Benign
1.5
L
PhyloP100
4.1
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-2.1
N
REVEL
Uncertain
0.54
Sift
Benign
0.18
T
Sift4G
Benign
0.18
T
Polyphen
0.94
P
Vest4
0.54
MutPred
0.35
Gain of catalytic residue at P232 (P = 0)
MVP
0.73
MPC
0.64
ClinPred
0.88
D
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.26
gMVP
0.31
Mutation Taster
=33/67
disease causing

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

Other links and lift over

dbSNP: rs1195873978; hg19: chr13-48934239; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.