< 1.0 EU per μg of the protein as determined by the LAL method
Measured by its ability to inhibit the GCSF-induced proliferation of NFS60 mouse myeloid cells.The ED50 for this ettect is typically 50-250 ng/mL in the presence of 0.125ng/mL of recombinant human GCSF.
A DNA sequence encoding the extracellular domain (Met 1-Pro 621) of human G-CSF receptor (NP_000751.1) precursor was fused with a polyhistidine tag at the C-terminus.
The mature recombinant human GCSFR consists of 608 amino acids and predicts a molecular mass of 68 kDa by SDS-PAGE under reducing conditions, the apparent molecular mass of rhGCSFR is approximately 92 kDa due to glycosylation.
Lyophilized from sterile PBS, pH 7.4 1. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA. 2. Please contact us for any concerns or special requirements.
Please refer to the specific buffer information in the hard copy of CoA.
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -70℃ Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
CD114 Protein, Human; CSF3R Protein, Human; G-CSF R Protein, Human; GCSFR Protein, Human
GCSF Receptor / G-CSFR Background Information
Granulocyte Colony Stimulating Factor Receptor (G-CSFR), also known as CD114, which belongs to the cytokine receptor superfamily, is a cell surface receptor for colony stimulating factor 3 (CSF3). It is a critical regulator of granulopoiesis. This type I membrane protein has a composite structure consisting of an immunoglobulin(Ig)-like domain, a cytokine receptor-homologous (CRH) domain and three fibronectin type III (FNIII) domains in the extracellular region. Mutations in the G-CSF receptor leading to carboxy-terminal truncation transduce hyperproliferative growth responses, and are implicated in the pathological progression of severe congenital neutropenia (SCN) to acute myelogenous leukemia (AML). Additionally, autocrine/paracrine stimulation of G-CSFR may be important in the biology of solid tumors, including metastasis.
Kasper B, et al. (1999) Association of src-kinase Lyn and non-src-kinase Syk with the granulocyte colony-stimulating factor receptor (G-CSFR) is not abrogated in neutrophils from severe congenital neutropenia patients with point mutations in the G-CSFR mRNA. Int J Hematol. 70(4): 241-7.
Hollenstein U, et al. (2000) Endotoxin down-modulates granulocyte colony-stimulating factor receptor (CD114) on human neutrophils. J Infect Dis. 182(1): 343-6.
Kindwall-Keller TL, et al. (2008) Role of the proteasome in modulating native G-CSFR expression. Cytokine. 43(2): 114-23.
Beel K, et al. (2009) G-CSF receptor (CSF3R) mutations in X-linked neutropenia evolving to acute myeloid leukemia or myelodysplasia. Haematologica. 94(10): 1449-52.
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