FGFR1/KLB Antibodies

Target Information

FGFR1 (also known as FLT2) is a member of the Fibroblast Growth Factor Receptor family that constitute a family of four membrane-spanning tyrosine kinases (FGFR1-4) which serve as high-affinity receptors for 17 growth factors (FGF1-17). The FGF Receptor family plays an important role in multiple biological processes, including mesoderm induction and patterning, cell growth and migration, organ formation and bone growth. FGFR1 is alternatively spliced generating multiple splice variants that are differentially expressed during embryo development and in the adult body. Other defects in FGFR1 are responsible for several diseases which include Pfeiffer syndrome (PS), idiopathic hypogonadotropic hypogonadism (IHH), Kallmann syndrome type 2 (KAL2), osteoglophonic dysplasia (OGD), non-syndromic trigonocephaly, Jackson-Weiss syndrome, Antley-Bixler syndrome. Chromosomal aberrations involving this gene are associated with stem cell myeloproliferative disorder and stem cell leukemia lymphoma syndrome.

KLB is a single-pass type III membrane protein. It contributes to the transcriptional repression of cholesterol 7-alpha-hydroxylase (CYP7A1), the rate-limiting enzyme in bile acid synthesis. KLB is probably inactive as a glycosidase. It increases the ability of FGFR1 and FGFR4 to bind FGF21.