chr4-1804365-A-T
Position:
Variant summary
Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PM1PM2PP3PP5_Very_Strong
The NM_000142.5(FGFR3):c.1111A>T(p.Ser371Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★).
Frequency
Genomes: not found (cov: 34)
Consequence
FGFR3
NM_000142.5 missense
NM_000142.5 missense
Scores
3
7
9
Clinical Significance
Conservation
PhyloP100: 1.37
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 Pathogenic. Variant got 13 ACMG points.
PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_000142.5
PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
Variant 4-1804365-A-T is Pathogenic according to our data. Variant chr4-1804365-A-T is described in ClinVar as [Pathogenic]. Clinvar id is 16333.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr4-1804365-A-T is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
FGFR3 | NM_000142.5 | c.1111A>T | p.Ser371Cys | missense_variant | 9/18 | ENST00000440486.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
FGFR3 | ENST00000440486.8 | c.1111A>T | p.Ser371Cys | missense_variant | 9/18 | 5 | NM_000142.5 | P4 |
Frequencies
GnomAD3 genomes Cov.: 34
GnomAD3 genomes
Cov.:
34
GnomAD4 exome Cov.: 35
GnomAD4 exome
Cov.:
35
GnomAD4 genome Cov.: 34
GnomAD4 genome
Cov.:
34
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:8Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Pathogenic:3
Pathogenic, no assertion criteria provided | clinical testing | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen | - | - - |
Pathogenic, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Pathogenic, criteria provided, single submitter | clinical testing | GeneDx | May 10, 2022 | Published functional studies demonstrate ligand-independent, constitutive dimerization and phosphorylation of the MAPK and c-fos pathways (Adar et al., 2002; You et al., 2007); Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 22045636, 7773297, 8845844, 25157968, 28249712, 10587515, 12009017, 11181569, 17845056) - |
Thanatophoric dysplasia type 1 Pathogenic:2Other:1
not provided, no classification provided | literature only | GeneReviews | - | - - |
Pathogenic, no assertion criteria provided | literature only | OMIM | Mar 01, 1995 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center | Jun 29, 2024 | - - |
not specified Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Apr 11, 2019 | The FGFR3 c.1111A>T; p.Ser371Cys variant (rs121913484) is a known pathogenic variant causative for thanatophoric dysplasia type I (Tavormina 1995, Karczeski 2013). It is reported as pathogenic in ClinVar (Variation ID 16333) and is absent from general population databases (Exome Variant Server and Genome Aggregation Database), indicating it is not a common polymorphism. In vitro functional studies have indicated the p.Ser371Cys variant promotes ligand-independent FGFR3 correct spatial dimerization that results in constitutive ligand independent phophorylation of MAPK and c-fos transcription (Adar 2002). Based on available information, this variant is considered pathogenic. REFERENCES Adar et al. Differential activation of cysteine-substitution mutants of fibroblast growth factor receptor 3 is determined by cysteine localization. J Bone Miner Res. 2002; 17(5): 860-868. Karczenski, B and Cutting, GR: Thanatophoric Dysplasia. In: Pagon RA, Adam MP, Ardinger HH, Wallace SE, Amemiya A, Bean LJH, Bird TD, Ledbetter N, Mefford HC, Smith RJH, Stephens K, editors. GeneReviews. Seattle (WA): University of Washington, Seattle; 1993-2017. 2004 May 21 (updated 2013 Sep 12). Tavormina PL et al. Thanatophoric dysplasia (types I and II) caused by distinct mutations in fibroblast growth factor receptor 3. Nat Genet 1995; 9(3):321-328. - |
Carcinoma Pathogenic:1
Likely pathogenic, no assertion criteria provided | literature only | Database of Curated Mutations (DoCM) | May 13, 2016 | - - |
Urinary bladder carcinoma Pathogenic:1
Likely pathogenic, no assertion criteria provided | literature only | Database of Curated Mutations (DoCM) | Jul 14, 2015 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
D;T;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
D
LIST_S2
Uncertain
D;D;T
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Uncertain
D
MutationAssessor
Benign
L;.;.
MutationTaster
Benign
A;A;A;A;A;A
PrimateAI
Benign
T
PROVEAN
Benign
N;N;N
REVEL
Uncertain
Sift
Uncertain
D;D;D
Sift4G
Benign
T;T;T
Polyphen
D;D;D
Vest4
MutPred
Loss of disorder (P = 0.0065);Loss of disorder (P = 0.0065);.;
MVP
MPC
0.89
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_AG_spliceai
Position offset: 13
Find out detailed SpliceAI scores and Pangolin per-transcript scores at