13-48453060-C-T
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBS2_Supporting
The NM_000321.3(RB1):c.1763C>T(p.Ser588Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000411 in 1,460,982 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 Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. S588S) has been classified as Likely benign.
Frequency
Consequence
NM_000321.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
RB1 | NM_000321.3 | c.1763C>T | p.Ser588Phe | missense_variant | 18/27 | ENST00000267163.6 | |
RB1 | NM_001407165.1 | c.1763C>T | p.Ser588Phe | missense_variant | 18/27 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
RB1 | ENST00000267163.6 | c.1763C>T | p.Ser588Phe | missense_variant | 18/27 | 1 | NM_000321.3 | P1 | |
RB1 | ENST00000650461.1 | c.1763C>T | p.Ser588Phe | missense_variant | 18/27 | ||||
RB1 | ENST00000643064.1 | c.194+71617C>T | intron_variant | ||||||
RB1 | ENST00000480491.1 | n.462C>T | non_coding_transcript_exon_variant | 2/3 | 5 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome AF: 0.00000411 AC: 6AN: 1460982Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 726818
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Retinoblastoma Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Nov 30, 2023 | This missense variant replaces serine with phenylalanine at codon 588 of the RB1 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with RB1-related disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 24, 2024 | This sequence change replaces serine, which is neutral and polar, with phenylalanine, which is neutral and non-polar, at codon 588 of the RB1 protein (p.Ser588Phe). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with RB1-related conditions. ClinVar contains an entry for this variant (Variation ID: 458136). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt RB1 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | May 05, 2023 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 23516486, Day alan_2006_Review) - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 21, 2022 | The p.S588F variant (also known as c.1763C>T), located in coding exon 18 of the RB1 gene, results from a C to T substitution at nucleotide position 1763. The serine at codon 588 is replaced by phenylalanine, an amino acid with highly dissimilar properties. This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at