rs751560923

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_000321.3(RB1):​c.1736G>A​(p.Arg579Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000992 in 1,612,926 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R579L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

RB1
NM_000321.3 missense

Scores

5
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 4.71

Publications

4 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: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.19075483).
BP6
Variant 13-48453033-G-A is Benign according to our data. Variant chr13-48453033-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 410936.
BS2
High AC in GnomAdExome4 at 15 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.1736G>Ap.Arg579Gln
missense
Exon 18 of 27NP_000312.2P06400
RB1
NM_001407165.1
c.1736G>Ap.Arg579Gln
missense
Exon 18 of 27NP_001394094.1A0A3B3IS71

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RB1
ENST00000267163.6
TSL:1 MANE Select
c.1736G>Ap.Arg579Gln
missense
Exon 18 of 27ENSP00000267163.4P06400
RB1
ENST00000467505.6
TSL:1
n.*1104G>A
non_coding_transcript_exon
Exon 13 of 22ENSP00000434702.1Q92728
RB1
ENST00000467505.6
TSL:1
n.*1104G>A
3_prime_UTR
Exon 13 of 22ENSP00000434702.1Q92728

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152030
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000159
AC:
4
AN:
250928
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1460896
Hom.:
0
Cov.:
30
AF XY:
0.0000151
AC XY:
11
AN XY:
726774
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33458
American (AMR)
AF:
0.00
AC:
0
AN:
44682
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26116
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39614
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53008
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000540
AC:
6
AN:
1111638
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60370
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.445
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.00000658
AC:
1
AN:
152030
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74264
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41412
American (AMR)
AF:
0.00
AC:
0
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10582
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67968
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
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
Alfa
AF:
0.0000283
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
1
Retinoblastoma (3)
-
-
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
0.077
BayesDel_addAF
Benign
-0.045
T
BayesDel_noAF
Benign
-0.12
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.43
T
Eigen
Benign
-0.12
Eigen_PC
Benign
0.021
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.83
T
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.19
T
MetaSVM
Uncertain
-0.21
T
MutationAssessor
Benign
1.7
L
PhyloP100
4.7
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.81
N
REVEL
Uncertain
0.32
Sift
Benign
0.21
T
Sift4G
Benign
0.12
T
Polyphen
0.42
B
Vest4
0.13
MutPred
0.33
Gain of catalytic residue at K577 (P = 0.019)
MVP
0.83
MPC
0.65
ClinPred
0.42
T
GERP RS
4.9
Varity_R
0.21
gMVP
0.24
Mutation Taster
=90/10
polymorphism

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: rs751560923; hg19: chr13-49027169; COSMIC: COSV105859837; API