Skeletal dysplasia
Gene: FGFR3EnsemblGeneIds (GRCh38): ENSG00000068078
EnsemblGeneIds (GRCh37): ENSG00000068078
OMIM: 134934, Gene2Phenotype
FGFR3 is in 21 panels
1 review
Bryony Thompson (Royal Melbourne Hospital)
FGFR3 has many well-established gene-disease associations with various skeletal dysplasia phenotypes. Gain-of-function is the main mechanism of disease for these disorders, except camptodactyly-tall stature-scoliosis-hearing loss syndrome (CATSHL syndrome, see separate curation below). Specific monoallelic variants cause different phenotypes: >99% achondroplasia is caused by variants leading to the missense change p.Gly380Arg; Cysteine substitutions and stop-loss protein elongation variants are highly specific for Thanatophoric dysplasia (TD) type 1; p.Lys650Glu is associated with TD type 2; p.Ala391Glu causes Crouzon syndrome with acanthosis nigricans; and p.Pro250Arg causes Muenke syndrome.
Moderate evidence for CATSHL syndrome, AD & AR: PMID: 8630492, 17033969, 27139183, 24864036, 32641982 - 2 apparently unrelated families segregating the same missense, p.Arg621His. One consanguineous family with 2 affected brothers with homozygous p.Thr546Lys. Heterozygous individuals in the family were unaffected. No functional assays were conducted for either missense to demonstrate loss of function. Null mouse and zebrafish models are similar to the human CATSHL syndrome phenotype.Created: 9 May 2022, 4:09 a.m. | Last Modified: 10 May 2022, 3:19 a.m.
Panel Version: 0.14020
Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes
achondroplasia MONDO:0007037; Thanatophoric dysplasia type 1 MONDO:0008546; Thanatophoric dysplasia type 2 MONDO:0008547; hypochondroplasia MONDO:0007793; Muenke syndrome MONDO:0011274; FGFR3-related chondrodysplasia MONDO:0019685; severe achondroplasia-developmental delay-acanthosis nigricans syndrome MONDO:0014658; Crouzon syndrome-acanthosis nigricans syndrome MONDO:0012833; camptodactyly-tall stature-scoliosis-hearing loss syndrome MONDO:0012504
Publications
Mode of pathogenicity
Other
Variants in this GENE are reported as part of current diagnostic practice
Details
- Mode of Inheritance
- BOTH monoallelic and biallelic, autosomal or pseudoautosomal
- Sources
-
- Expert Review Green
- Illumina TruGenome Clinical Sequencing Services
- UKGTN
- Radboud University Medical Center, Nijmegen
- Expert Review Green
- NHS GMS
- Expert list
- Emory Genetics Laboratory
- Phenotypes
-
- Crouzon syndrome with acanthosis nigricans 612247
- Thanatophoric dysplasia, type II 187601
- Thanatophoric dysplasia, type I 187600
- SADDAN 616482
- LADD syndrome 149730
- Achondroplasia 100800
- Hypochondroplasia 146000
- Muenke syndrome 602849
- CATSHL syndrome 610474
- OMIM
- 134934
- Clinvar variants
- Variants in FGFR3
- Penetrance
- None
- Panels with this gene
-
- Polydactyly
- Clefting disorders
- Incidentalome_PREGEN_DRAFT
- BabyScreen+ newborn screening
- Hydrops fetalis
- Intellectual disability syndromic and non-syndromic
- Genetic Epilepsy
- Congenital anomalies of the kidney and urinary tract (CAKUT) Syndromic
- Hydrocephalus_Ventriculomegaly
- Skeletal Dysplasia_Fetal
- Radial Ray Abnormalities
- Craniosynostosis
- Skeletal dysplasia
- Fetal anomalies
- Additional findings_Paediatric
- Choanal atresia
- Arthrogryposis
- Mosaic skin disorders
- Mendeliome
- Callosome
- Growth failure
History Filter Activity
Created, Added New Source, Set mode of inheritance, Set Phenotypes
Zornitza Stark (Victorian Clinical Genetics Services; Australian Genomics)gene: FGFR3 was added gene: FGFR3 was added to Skeletal dysplasia. Sources: Emory Genetics Laboratory,Expert list,NHS GMS,Expert Review Green,Radboud University Medical Center, Nijmegen,UKGTN,Illumina TruGenome Clinical Sequencing Services Mode of inheritance for gene: FGFR3 was set to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Phenotypes for gene: FGFR3 were set to Crouzon syndrome with acanthosis nigricans 612247; Thanatophoric dysplasia, type II 187601; Thanatophoric dysplasia, type I 187600; SADDAN 616482; LADD syndrome 149730; Achondroplasia 100800; Hypochondroplasia 146000; Muenke syndrome 602849; CATSHL syndrome 610474