Recombinant Human IGF-BP4 Protein [Insect cells] | 100-200S/100-200

Recombinant Human IGF-BP4 Protein [Insect cells] | 100-200S/100-200 | Gentaur UK, US & Europe Distribution

Species: Human

Host / biotech: Insect cells

Comment: N/A

Label: N/A

Clone / Antibody feature: N/A

Subcategory: Cytokines & Growth Factors

Category: Recombinant Protein

Synonyms: IGFBP4; BP-4; IBP4; IGFBP-4; HT29-IGFBP

Isotype: N/A

Application: N/A

Detection Range: Determined by its ability to inhibit IGF-I induced proliferation of FDC-P1 cells.

Species Reactivity/Cross reactivity: Mouse, Human

Antigen: N/A

Description: IGF-BPs control the distribution, function and activity of IGFs in various cell tissues and body fluids. IGF-BP4 is the major IGF-BP produced by osteoblasts, and is also found in the epidermis, ovarian follicles, and other tissues. IGF-BP4 inhibits the activity of IGF-I and IGF-II by binding in a manner that results in the formation of complexes with reduced ability to signal through cell surface IGF receptors. IGF-BP4 can inhibit the growth of chick pelvis cartilage and HT29 colon adenocarcinoma cells by blocking the mitogenic actions of IGFs, and has also been shown to reduce colony formation by colorectal cancer cells via an IGF independent pathway. The biological effects of IGF-BP4 can be regulated by Pregnancy Associated Plasma Protein A (PAPP-A), which reduces IGF-BP4/IGF binding affinity by proteolytically cleaving IGF-BP4. The modulation of IGF-BP4 activity by PAPP-A is an important component in the regulation of ovarian folliculogenesis and in the growth inhibition of responding ovarian cancer cells. Recombinant human IGF-BP4 is a 26.1 kDa protein consisting of 238 amino acid residues including the IGF-BP domain and thyroglobulin type-I domain.

Purity Confirmation: > 95% by SDS-PAGE & HPLC analyses

Endotoxin: < 0.1 ng/µg of protein (<1EU/µg)

Formulation: lyophilized

Storage Handling Stability: N/A

Reconstituation: N/A

Molecular Weight: 25.8 kDa

Lenght (aa): 237

Protein Sequence: DEAIHCPPCS EEKLARCRPP VGCEELVREP GCGCCATCAL GLGMPCGVYT PRCGSGLRCY PPRGVEKPLH TLMHGQGVCM ELAEIEAIQE SLQPSDKDEG DHPNNSFSPC SAHDRRCLQK HFAKIRDRST SGGKMKVNGA PREDARPVPQ GSCQSELHRA LERLAASQSR THEDLYIIPI PNCDRNGNFH PKQCHPALDG QRGKCWCVDR KTGVKLPGGL EPKGELDCHQ LADSFRE

NCBI Gene ID: 3487