Question: Which gene is associated with Muenke syndrome?

Context:
Abstract Muenke is a fibroblast growth factor receptor 3 (FGFR-3) associated syndrome, which was first described in late 1990s. 
The syndrome is defined molecularly by a unique point mutation c.749C>G in exon 7 of the FGFR3 gene which results to an amino acid substitution p.Pro250Arg of the protein product. 
Muenke syndrome is an autosomal dominant craniosynostosis syndrome resulting from a defining point mutation in the Fibroblast Growth Factor Receptor3 (FGFR3) gene. 
Muenke syndrome is caused by a single defining point mutation in the fibroblast growth factor receptor 3 (FGFR3) gene.
Muenke syndrome is characterized by various craniofacial deformities and is caused by an autosomal-dominant activating mutation in fibroblast growth factor receptor 3 (FGFR3(P250R)               ).
The Pro250Arg mutation in the FGFR3 gene is found in patients with Muenke syndrome and is one of the most frequently encountered mutations in craniosynostosis syndromes. 
The Muenke syndrome (MS) is characterized by unicoronal or bicoronal craniosynostosis, midfacial hypoplasia, ocular hypertelorism, and a variety of minor abnormalities associated with a mutation in the fibroblast growth factor receptor 3 (FGFR3) gene.
Here, we report a familial case of MS in a female patient with a Pro250Arg mutation in exon 7 (IgII-IGIII linker domain) of the FGFR3 gene. 
 Fibroblasts from 10 individuals each with Apert syndrome (FGFR2 substitution S252W), Muenke syndrome (FGFR3 substitution P250R), Saethre-Chotzen syndrome (various mutations in TWIST1) and non-syndromic sagittal synostosis (no mutation detected) were cultured.
We report on a set of identical twins with a de novo C749G mutation in the FGFR3 gene codon 250 after a pregnancy complicated by prenatal exposure to Nortriptyline.
Mutations in the gene that encodes Fibroblast Growth Factor Receptor 3 (FGFR3) are associated with Achondroplasia (MIM 100800), Hypochondroplasia (MIM 146000), Muenke Syndrome (MIM 602849), Thanatophoric Dysplasia (MIM 187600, MIM 187601) and Lacrimo-Auriculo-Dento-Digital Syndrome (MIM 149730).
The identification of the P250R mutation allowed the confirmation of the Muenke Syndrome in 9 out of the 52 cases referred. 
Muenke syndrome, defined by heterozygosity for a Pro250Arg substitution in fibroblast growth factor receptor 3 (FGFR3), is the most common genetic cause of craniosynostosis in humans. We have used gene targeting to introduce the Muenke syndrome mu
Muenke syndrome is an autosomal dominant disorder characterized by coronal suture craniosynostosis, hearing loss, developmental delay, carpal and tarsal fusions, and the presence of the Pro250Arg mutation in the FGFR3 gene. 
To better define the clinical features of this syndrome, we initiated a study of the natural history of Muenke syndrome. To date, we have conducted a standardized evaluation of nine patients with a confirmed Pro250Arg mutation in FGFR3. 
The patients were either placed into the "Muenke" group (n=11) or the "non-Muenke" control group (n=12) on the basis of a test for the P250R mutation in the FGFR3 gene.
P250R mutation in the FGFR3 gene also known as Muenke syndrome is associated with coronal craniosynostosis, sensorineural deafness, craniofacial, and digital abnormalities.
However, Muenke et al. [(1997); Am J Hum Genet 91: 555-564] described a new subgroup carrying the Pro250Arg mutation in the fibroblast growth factor receptor (FGFR) 3 gene on chromosome 4p16.
Muenke syndrome, also known as FGFR3-associated coronal synostosis, is defined molecularly by the presence of a heterozygous nucleotide transversion, c.749C>G, encoding the amino acid substitution Pro250Arg, in the fibroblast growth factor receptor type 3 gene (FGFR3). 
In spite of a variable phenotype, Muenke syndrome has been related to a unique mutation on the FGFR3 gene, Pro 250 to Arg, which is characteristic of this disease. 
Hypochondroplasia (HCH) and Muenke syndrome (MS) are caused by mutations on FGFR3 gene.

Answer: Muenke syndrome has been related to a mutation on the Fibroblast Growth Factor Receptor (FGFR3) gene.
Exact answer: Fibroblast Growth Factor Receptor 3 (FGFR3)