rs139987219

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_002895.5(RBL1):​c.2158A>G​(p.Ile720Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000428 in 1,612,806 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

RBL1
NM_002895.5 missense

Scores

1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.802

Publications

0 publications found
Variant links:
Genes affected
RBL1 (HGNC:9893): (RB transcriptional corepressor like 1) The protein encoded by this gene is similar in sequence and possibly function to the product of the retinoblastoma 1 (RB1) gene. The RB1 gene product is a tumor suppressor protein that appears to be involved in cell cycle regulation, as it is phosphorylated in the S to M phase transition and is dephosphorylated in the G1 phase of the cell cycle. Both the RB1 protein and the product of this gene can form a complex with adenovirus E1A protein and SV40 large T-antigen, with the SV40 large T-antigen binding only to the unphosphorylated form of each protein. In addition, both proteins can inhibit the transcription of cell cycle genes containing E2F binding sites in their promoters. Due to the sequence and biochemical similarities with the RB1 protein, it is thought that the protein encoded by this gene may also be a tumor suppressor. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0578624).
BS2
High AC in GnomAd4 at 8 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002895.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RBL1
NM_002895.5
MANE Select
c.2158A>Gp.Ile720Val
missense
Exon 15 of 22NP_002886.2
RBL1
NM_183404.4
c.2158A>Gp.Ile720Val
missense
Exon 15 of 21NP_899662.1P28749-2
RBL1
NM_001323281.2
c.877A>Gp.Ile293Val
missense
Exon 14 of 21NP_001310210.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
RBL1
ENST00000373664.8
TSL:1 MANE Select
c.2158A>Gp.Ile720Val
missense
Exon 15 of 22ENSP00000362768.3P28749-1
RBL1
ENST00000344359.7
TSL:1
c.2158A>Gp.Ile720Val
missense
Exon 15 of 21ENSP00000343646.3P28749-2
RBL1
ENST00000927851.1
c.2158A>Gp.Ile720Val
missense
Exon 15 of 21ENSP00000597910.1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152234
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000864
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000599
AC:
15
AN:
250400
AF XY:
0.0000517
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000898
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000418
AC:
61
AN:
1460572
Hom.:
0
Cov.:
31
AF XY:
0.0000482
AC XY:
35
AN XY:
726496
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33428
American (AMR)
AF:
0.00
AC:
0
AN:
44560
Ashkenazi Jewish (ASJ)
AF:
0.000844
AC:
22
AN:
26080
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86072
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53398
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000297
AC:
33
AN:
1111274
Other (OTH)
AF:
0.0000829
AC:
5
AN:
60328
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000526
AC:
8
AN:
152234
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74382
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.000864
AC:
3
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:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.000121
Hom.:
0
Bravo
AF:
0.0000567
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.079
BayesDel_addAF
Benign
-0.085
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
10
DANN
Benign
0.50
DEOGEN2
Benign
0.13
T
Eigen
Benign
-0.95
Eigen_PC
Benign
-0.84
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.69
T
M_CAP
Benign
0.039
D
MetaRNN
Benign
0.058
T
MetaSVM
Benign
-0.57
T
MutationAssessor
Benign
0.81
L
PhyloP100
0.80
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.41
N
REVEL
Benign
0.26
Sift
Benign
0.41
T
Sift4G
Benign
0.30
T
Polyphen
0.0040
B
Vest4
0.28
MVP
0.70
MPC
0.20
ClinPred
0.015
T
GERP RS
0.24
Varity_R
0.014
gMVP
0.26
Mutation Taster
=95/5
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: rs139987219; hg19: chr20-35663657; API