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RecombinantIGF-BP-4, His, Human

CAT: 0384-BK0309-01Size: 10 µgDry Ice: NoHazardous: No
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CAT#:0384-BK0309-01Size:10 µg
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24/48H Stock Items & 2 to 6 Weeks non Stock Items.
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Description
Insulin-like growth factor-binding protein 4 (IGF-BP-4), also known as IBP-4, is a secreted glycoprotein belonging to the IGFBP family. IGF-BP-4 is produced by osteoblasts, epidermis, ovarian follicles and other tissues. It binds both insulin-like growth factor (IGF) I and II, and it circulates in the plasma in both glycosylated and non-glycosylated forms. IGF-BP-4 prolongs the half-life of the IGFs and has been shown to inhibit or stimulate the growth-promoting effects of the IGFs. Pregnancy Associated Plasma Protein A (PAPP-A) proteolytically cleaves IGF-BP-4 and reduces its affinity to bind IGFs, and thus serves as an important regulator of IGF-BP-4 function.
CAS Number
9000-83-3
Endotoxin
< 0.2 EU/μg, determined by LAL method.
Purity
> 95% as analyzed by SDS-PAGE.
Bioactivity
ED50 < 50 ng/ml, measured in a bioassay using FDC-P1 cells in the presence of 15ng/ml human IGF-II.
Reconstitution
Reconstituted in ddH2O or PBS at 100 μg/ml.
Molecular Weight
30-35 kDa, observed by reducing SDS-PAGE.
Storage Conditions
Lyophilized recombinant human IGF-BP-4 remains stable up to 6 months at -80°C from date of receipt. Upon reconstitution, human IGF-BP-4, His should be stable up to 1 week at 4°C or up to 2 months at -20°C.
Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation
Lyophilized after extensive dialysis against PBS.
Host or Source
HEK 293
Recommended Usage
This material is offered by USA Bioworld biotech for research, laboratory or further evaluation purposes. For research use only.
AA Sequence
DEAIHCPPCSEEKLARCRPPVGCEELVREPGCGCCATCALGLGMPCGVYTPRCGSGLRCYPPRGVEKPLHTLMHGQGVCM ELAEIEAIQESLQPSDKDEGDHPNNSFSPCSAHDRRCLQKHFAKIRDRSTSGGKMKVNGAPREDARPVPQGSCQSELHRA LERLAASQSRTHEDLYIIPIPNCDRNGNFHPKQCHPALDGQRGKCWCVDRKTGVKLPGGLEPKGELDCHQLADSFREHHHHHH

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