Rabbit Monoclonal Antibody to Human IGFBP3
Insulin-like growth factor-binding proteins (IGFBPs) prolong the half-life of the IGFs , control bioavailability, activity, and distribution of insulin-like growth factor (IGF) through high-affinity IGFBP/IGF complexes. Six high-affinity IGF-binding proteins (IGFBP-1 to -6) have been identified. Human IGFBP3 is a widely expressed protein containing an IGFBP domain at the N-terminus and a thyroglobulin type-I domain. IGFBP3 forms a ternary complex of about 140 ~150 kDa with IGF1 or IGF2 and a glycoprotein insulin-like growth factor acid-labile subunit (ALS), thus alter the interaction of IGFs with their cell surface receptors. IGFBP3 exerts either proapoptotic or growth stimulatory effects depending upon the cellular context. Studies have shown that IGFBP3 can leads to the induction of apoptosis dependent or independent of the IGF-IGF receptor axis, accordingly acts as a negative regulator of tumorigenesis and progressing in certain carcinomas. In addition, IGFBP3 also interacts with the Alzheimers survival peptide humanin (HN), playing a role in neurological disease processes.
Human IGFBP3. No cross-reactivity with human cell lysate ( 293 cell line ) in WB and ELISA.
Recombinant Human IGFBP3 Protein
Western blot: This antibody can be used at 1-2 μg/mL with the appropriate secondary reagents to detect Human IGFBP3 in WB. Using a DAB detection system, the detection limit for Human IGFBP3 is approximately 1 ng/lane under non-reducing conditions. Use of this antibody under reducing conditions is not recommended.Direct ELISA: This antibody can be used at 0.1-0.2 μg/mL with the appropriate secondary reagents to detect Human IGFBP3. The detection limit for Human IGFBP3 is approximately 0.00245 ng/well.
This antibody was obtained from a rabbit immunized with purified, human cell-derived, recombinant Human IGFBP3 (rh IGFBP3; Gly28 - Lys 291; NP_000589.2)
0.2 μm filtered solution in PBS with 5% trehalose
This antibody can be stored at 2-8 °C for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20 to -70 °C. Preservative-Free.Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.