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Human FLRT1 Protein (His Tag)

SPG68

Catalog Number P11389-H08H
Organism Species Human
Host Human Cells
Synonyms SPG68
Molecular Weight The recombinant human FLRT1 consists of 515 amino acids and predictes a molecular mass of 57 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rh FLRT1 is approximately 65 kDa due to glycosylation.
predicted N Ile 21
SDS-PAGE
Purity > 96 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the human FLRT1 extracellular domain (Q9NZU1-1) (Met 1-Pro 524) was expressed, fused with a polyhistidine tag at the C-terminus.
Bio-activity Measured by the ability of the immobilized protein to support the adhesion of Neuro‑2A mouse neuroblastoma cells.
When cells are added to coated plates(5μg/mL, 100μL/well), approximately 50%-70% will adhere after 1 hour at 37℃.
Research Area Immunology |Innate Immunity |Monocytes/Macrophages |Monocyte Markers
Formulation Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background The three fibronectin leucine-rich repeat transmembrane (FLRT) proteins contain 10 leucine-rich repeats (LRR), a type III fibronectin (FN) domain, followed by the transmembrane region, and a short cytoplasmic tail. FLRT1 is expressed in kidney and brain, which is a target for tyrosine phosphorylation mediated by FGFR1 and implicate a non-receptor Src family kinase (SFK). All FLRTs can interact with FGFR1 and FLRTs can be induced by the activation of FGF signalling by FGF-2. The phosphorylation state of FLRT1, which is itself FGFR1 dependent, may play a critical role in the potentiation of FGFR1 signalling and may also depend on a SFK-dependent phosphorylation mechanism acting via the FGFR. This is consistent with an 'in vivo' role for FLRT1 regulation of FGF signalling via SFKs. Furthermore, the phosphorylation-dependent futile cycle mechanism controlling FGFR1 signalling is concurrently crucial for regulation of FLRT1-mediated neurite outgrowth. FLRT1, FLRT2 and FLRT3 are members of the fibronectin leucine rich transmembrane protein (FLRT) family. They may function in cell adhesion and/or receptor signalling. Their protein structures resemble small leucine-rich proteoglycans found in the extracellular matrix. FLRT3 shares 55% amino acid sequence identity with FLRT1.
Reference
  • Lacy SE, et al. (1999) Identification of FLRT1, FLRT2, and FLRT3: a novel family of transmembrane leucine-rich repeat proteins. Genomics. 62(3): 417-26.
  • Haines BP, et al. (2006) Regulated expression of FLRT genes implies a functional role in the regulation of FGF signalling during mouse development. Dev Biol. 297(1): 14-25.
  • Maretto S, et al. (2008) Ventral closure, headfold fusion and definitive endoderm migration defects in mouse embryos lacking the fibronectin leucine-rich transmembrane protein FLRT3. Dev Biol. 318(1): 184-93.
  • Wheldon LM, et al. (2010) Critical role of FLRT1 phosphorylation in the interdependent regulation of FLRT1 function and FGF receptor signalling. PLoS One. 5(4): e10264.