IGF1 ELISA Kit (Guinea pig)

Intra-assay Precision (Precision within an assay) : 3 samples with low, middle and high level Insulin Like Growth Factor 1 (IGF1) were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays) : 3 samples with low, middle and high level Insulin Like Growth Factor 1 (IGF1) were tested on 3 different plates, 8 replicates in each plate. CV (%) = SD/meanX100 Intra-Assay: CV<10% Inter-Assay: CV<12%

The insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting activity. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts. Stimulates glucose transport in bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only regarding glycogen and DNA synthesis but also with regard to enhancing glucose uptake. May play a role in synapse maturation. Ca (2+) -dependent exocytosis of IGF1 is required for sensory perception of smell in the olfactory bulb. Acts as a ligand for IGF1R. Binds to the alpha subunit of IGF1R, leading to the activation of the intrinsic tyrosine kinase activity which autophosphorylates tyrosine residues in the beta subunit thus initiatiating a cascade of down-stream signaling events leading to activation of the PI3K-AKT/PKB and the Ras-MAPK pathways. Binds to integrins ITGAV:ITGB3 and ITGA6:ITGB4. Its binding to integrins and subsequent ternary complex formation with integrins and IGFR1 are essential for IGF1 signaling. Induces the phosphorylation and activation of IGFR1, MAPK3/ERK1, MAPK1/ERK2 and AKT1 (By similarity) .

The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Insulin Like Growth Factor 1 (IGF1) . Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated antibody specific to Insulin Like Growth Factor 1 (IGF1) . Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Insulin Like Growth Factor 1 (IGF1), biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm +/- 10nm. The concentration of Insulin Like Growth Factor 1 (IGF1) in the samples is then determined by comparing the O.D. of the samples to the standard curve.

Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Reconstitution & Storage Instructions Reconstitution & Storage Instructions Western Blotting/Immunoblotting (WB/IB) Protocol Western Blotting/Immunoblotting (WB/IB) Protocol Immunohistochemistry (IHC) Protocol Immunohistochemistry (IHC) Protocol Immunocytochemistry (ICC) Protocol Immunocytochemistry (ICC) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Enzyme-Linked ImmunoSorbent Assay (ELISA) Protocol Blocking Peptide Competition Protocol (BPCP) Blocking Peptide Competition Protocol (BPCP) Immunoprecipitation (IP) Protocol Immunoprecipitation (IP) Protocol Antibody Array (AA) Protocol Antibody Array (AA) Protocol

Matrix Recovery Range (%) Average (%) Serum (n=5) 78-95 91 EDTA Plasma (n=5) 79-101 95 Heparin Plasma (n=5) 92-105 99 Matrix Recovery Range (%) Average (%) Matrix Recovery Range (%) Average (%) Serum (n=5) 78-95 91 Serum (n=5) 78-95 91 EDTA Plasma (n=5) 79-101 95 EDTA Plasma (n=5) 79-101 95 Heparin Plasma (n=5) 92-105 99 Heparin Plasma (n=5) 92-105 99

Component Amount Anti-IGF1 Microplate 96 Wells (12 x 8 Well Strips) IGF1 Lyophilized Standard 2 x 5 ng 100X Biotinylated IGF1 Detector Antibody 120 uL Avidin/HRP Conjugate 120 uL Standard Diluent 1 x 20 mL Detector Antibody Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL 30X Wash Buffer 1 x 20 mL TMB Substrate 1 x 9 mL Stop Solution 1 x 6 mL Component Amount Component Amount Anti-IGF1 Microplate 96 Wells (12 x 8 Well Strips) Anti-IGF1 Microplate 96 Wells (12 x 8 Well Strips) IGF1 Lyophilized Standard 2 x 5 ng IGF1 Lyophilized Standard 2 x 5 ng 100X Biotinylated IGF1 Detector Antibody 120 uL 100X Biotinylated IGF1 Detector Antibody 120 uL Avidin/HRP Conjugate 120 uL Avidin/HRP Conjugate 120 uL Standard Diluent 1 x 20 mL Standard Diluent 1 x 20 mL Detector Antibody Diluent 1 x 12 mL Detector Antibody Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL Conjugate Diluent 1 x 12 mL 30X Wash Buffer 1 x 20 mL 30X Wash Buffer 1 x 20 mL TMB Substrate 1 x 9 mL TMB Substrate 1 x 9 mL Stop Solution 1 x 6 mL Stop Solution 1 x 6 mL

This assay has high sensitivity and excellent specificity for detection of Insulin Like Growth Factor 1 (IGF1) . No significant cross-reactivity or interference between Insulin Like Growth Factor 1 (IGF1) and analogues was observed.