rs1131690884

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_000321.3(RB1):​c.1372G>A​(p.Glu458Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,180 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RB1
NM_000321.3 missense

Scores

13
5
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.02
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 Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a region_of_interest Domain A (size 206) in uniprot entity RB_HUMAN there are 18 pathogenic changes around while only 0 benign (100%) in NM_000321.3
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.888

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RB1NM_000321.3 linkuse as main transcriptc.1372G>A p.Glu458Lys missense_variant 14/27 ENST00000267163.6 NP_000312.2
LOC112268118XR_002957522.2 linkuse as main transcriptn.40+202C>T intron_variant, non_coding_transcript_variant
RB1NM_001407165.1 linkuse as main transcriptc.1372G>A p.Glu458Lys missense_variant 14/27 NP_001394094.1
RB1NM_001407166.1 linkuse as main transcriptc.1372G>A p.Glu458Lys missense_variant 14/17 NP_001394095.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RB1ENST00000267163.6 linkuse as main transcriptc.1372G>A p.Glu458Lys missense_variant 14/271 NM_000321.3 ENSP00000267163 P1
RB1ENST00000650461.1 linkuse as main transcriptc.1372G>A p.Glu458Lys missense_variant 14/27 ENSP00000497193

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249564
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135138
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000549
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460180
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
726362
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
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
Cov.:
30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.90
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.44
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.92
D;.
Eigen
Pathogenic
0.86
Eigen_PC
Pathogenic
0.87
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Uncertain
0.19
D
MetaRNN
Pathogenic
0.89
D;D
MetaSVM
Pathogenic
0.80
D
MutationAssessor
Uncertain
2.6
M;.
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-3.2
D;.
REVEL
Pathogenic
0.91
Sift
Uncertain
0.0020
D;.
Sift4G
Pathogenic
0.0
D;.
Polyphen
1.0
D;.
Vest4
0.91
MutPred
0.71
Gain of MoRF binding (P = 0.0053);Gain of MoRF binding (P = 0.0053);
MVP
0.98
MPC
1.4
ClinPred
0.99
D
GERP RS
5.7
Varity_R
0.93
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
Details are displayed if max score is > 0.2

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: rs1131690884; hg19: chr13-48953769; API