rs1030059712
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM4
The NM_000142.5(FGFR3):c.436_445+2del variant causes a inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,612,838 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000015 ( 0 hom. )
Consequence
FGFR3
NM_000142.5 inframe_deletion
NM_000142.5 inframe_deletion
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 1.47
Genes affected
FGFR3 (HGNC:3690): (fibroblast growth factor receptor 3) This gene encodes a member of the fibroblast growth factor receptor (FGFR) family, with its amino acid sequence being highly conserved between members and among divergent species. FGFR family members differ from one another in their ligand affinities and tissue distribution. A full-length representative protein would consist of an extracellular region, composed of three immunoglobulin-like domains, a single hydrophobic membrane-spanning segment and a cytoplasmic tyrosine kinase domain. The extracellular portion of the protein interacts with fibroblast growth factors, setting in motion a cascade of downstream signals, ultimately influencing mitogenesis and differentiation. This particular family member binds acidic and basic fibroblast growth hormone and plays a role in bone development and maintenance. Mutations in this gene lead to craniosynostosis and multiple types of skeletal dysplasia. [provided by RefSeq, Aug 2017]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 4 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_000142.5.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
FGFR3 | NM_000142.5 | c.436_445+2del | inframe_deletion | 4/18 | ENST00000440486.8 | NP_000133.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
FGFR3 | ENST00000440486.8 | c.436_445+2del | inframe_deletion | 4/18 | 5 | NM_000142.5 | ENSP00000414914 | P4 |
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152178Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000120 AC: 3AN: 249746Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135478
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GnomAD4 exome AF: 0.0000151 AC: 22AN: 1460660Hom.: 0 AF XY: 0.0000124 AC XY: 9AN XY: 726622
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GnomAD4 genome AF: 0.0000460 AC: 7AN: 152178Hom.: 0 Cov.: 33 AF XY: 0.0000673 AC XY: 5AN XY: 74348
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Dec 13, 2017 | This sequence change affects a donor splice site in intron 4 of the FGFR3 gene. It is expected to disrupt RNA splicing and/or create a premature translational stop signal, and likely results in an absent or disrupted protein product. This variant is not present in population databases (ExAC no frequency). 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. The current clinical and genetic evidence is not sufficient to establish whether loss-of-function variants in FGFR3 cause disease. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. This variant has not been reported in the literature in individuals with FGFR3-related disease. - |
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Find out detailed SpliceAI scores and Pangolin per-transcript scores at