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Human IGFBP3, His tag

Human IGFBP3, His tag

Catalog Number: S0A3002 Brand: Starter
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Regular price $200 USD
Regular price Sale price $200 USD
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Product Details

Product Specification


Species Human
Synonyms Insulin-like growth factor-binding protein 3, IBP-3, IGF-binding protein 3, IGFBP-3
Accession P17936
Amino Acid Sequence

Protein sequence(P17936, Gly28-Lys291, with C-10*His) GASSAGLGPVVRCEPCDARALAQCAPPPAVCAELVREPGCGCCLTCALSEGQPCGIYTERCGSGLRCQPSPDEARPLQALLDGRGLCVNASAVSRLRAYLLPAPPAPGNASESEEDRSAGSVESPSVSSTHRVSDPKFHPLHSKIIIIKKGHAKDSQRYKVDYESQSTDTQNFSSESKRETEYGPCRREMEDTLNHLKFLNVLSPRGVHIPNCDKKGFYKKKQCRPSKGRKRGFCWCVDKYGQPLPGYTTKGKEDVHCYSMQSKGGGGSHHHHHHHHHH

Expression System HEK293
Molecular Weight

Theoretical:30.4kDa Actual:45-52kDa

Purity

>90% by SDS-PAGE

Endotoxin <1EU/μg
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer Lyophilized from a 0.2 μm filtered solution of 0.2M PBS, pH7.4.
Reconstitution Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation.
Stability & Storage

12 months from date of receipt, -20 to -70 °C as supplied. 6 months, -20 to -70 °C under sterile conditions after reconstitution. 1 week, 2 to 8 °C under sterile conditions after reconstitution. Please avoid repeated freeze-thaw cycles.

Background

Insulin-like growth factor-binding protein 3, also known as IGFBP-3, is a protein that in humans is encoded by the IGFBP3 gene. IGFBP-3 is one of six IGF binding proteins. IGFBP-3 was first isolated, characterized, and quantitated in human plasma, in 1986. It has well-documented functions in the circulation, in the extracellular environment, and inside cells. It is the main IGF transport protein in the bloodstream, where it carries the growth factors predominantly in stable complexes that contain the binding protein, either IGF-1 or IGF-2, and a third protein called the acid-labile subunit or ALS. IGFBP-3 levels in human serum are, like IGF-1, dependent on growth hormone (GH); for example, serum IGFBP-3 is increased in acromegaly and low in GH-deficient children. However, IGFBP-3 gene expression in human liver is GH-independent. Because it is stabilized in human serum by forming complexes with IGF-1 and ALS, which are both GH-dependent, serum IGFBP-3 also appears regulated by GH. Its production by some non-hepatic tissues may also be directly GH-regulated. Immunoassays for serum IGFBP-3 are often used as part of the diagnosis of childhood GH-deficiency.

Picture

Bioactivity

Immobilized Human IGFBP3, His tag at 1 μg/mL (50 μL/well) can bind Human IGF-2 Protein, hFc Tag (Cat. No. S0A4045) with EC50 of 38.35-41.10 ng/ml.

SDS-PAGE

2μg(R: reducing conditions)

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