本品由我们的哺乳动物细胞表达系统制备而成，目的基因编码的Leu21-Glu272在C端含有His标签。

IGFBP-5质量控制：＞95%(还原性SDS-PAGE)

IGFBP-5制剂：冻干品

IGFBP-5保存：
冻干蛋白置于-20℃以下可长期保存，室温条件下可稳定保存3周。
复溶蛋白溶液可在4～7℃保存2～7天，可分装后置于-20℃保存三个月。

IGFBP-5复溶：
打开试剂管前请先离心。
复溶浓度推荐大于100 μg/ml。
冻干蛋白请溶于ddH2O。
复溶后，请根据用量分装冻存，避免反复冻融。

关于IGFBP-5：
Insulin-Like Growth Factor-Binding Protein 5 (IGFBP-5) is a secreted protein that belongs to the insulin-like growth factor (IGF) binding proteins superfamily. Members of this family prolong the half-life of the IGFs. They have been shown to either inhibit or stimulate the growth promoting effects of the IGFs on cell culture. They alter the interaction of IGFs with their cell surface receptors. IGFBP-5 contains one IGFBP N-terminal domain and one thyroglobulin type-1 domain. IGFBP-5 is expressed by fibroblasts, myoblasts and Osteosarcoma. It is also present at lower levels in liver, kidney, and brain.