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Recombinant Human IGFBP-6 Protein, CF

Catalog #: 876-B6
5 Citations Datasheet / COA / SDS
Catalog # Availability Size / Price Qty
876-B6-025
R&D Systems Recombinant Proteins and Enzymes
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Citations (5)
FAQs
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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Human IGFBP-6 Protein, CF Summary

Product Specifications

Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to inhibit the biological activity of IGF-I or IGF-II on MCF‑7 human breast cancer cells. Karey, K.P. et al. (1988) Cancer Research 48:4083. The ED50 for this effect is 0.025-0.15 µg/mL in the presence of 14 ng/mL Recombinant Human IGF‑II (Catalog # 292-G2).
Source
Mouse myeloma cell line, NS0-derived human IGFBP-6 protein
Ala25-Gly240, with an N-terminal Met
Accession #
NP_002169
N-terminal Sequence
Analysis
Met
Predicted Molecular Mass
23 kDa
SDS-PAGE
34 kDa, reducing conditions

Product Datasheets

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876-B6

Product Datasheet
COA
SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

876-B6

Formulation Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, ≤ -20 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, ≤ -20 °C under sterile conditions after reconstitution.
Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: IGFBP-6

The superfamily of insulin-like growth factor (IGF) binding proteins include the six high-affinity IGF binding proteins (IGFBP) and at least four additional low-affinity binding proteins referred to as IGFBP related proteins (IGFBP-rP). All IGFBP superfamily members are cysteine-rich proteins with conserved cysteine residues, which are clustered in the amino- and carboxy-terminal thirds of the molecule. IGFBPs modulate the biological activities of IGF proteins. Some IGFBPs may also have intrinsic bioactivity that is independent of their ability to bind IGF proteins. Post-transitional modifications of IGFBP, including glycosylation, phosphorylation and proteolysis, have been shown to modify the affinities of the binding proteins to IGF.

Human IGFBP-6 cDNA encodes a 240 amino acid (aa) residue precursor protein with a putative 24 aa residue signal peptide that is processed to generate the 216 aa residue mature protein that is O-glycosylated. IGFBP-6 is expressed in ovarian cells, prostatic cells, and fibroblasts. IGFBP-6 is found predominantly in CSF and serum. IGFBP-6 binds preferentially to IGF-II, exhibiting a 2-fold higher affinity for IGF-II than for IGF-I.

References
  1. Jones, J.I. and D.R. Clemmons (1995) Endocrine Rev. 16:3.
  2. Kelley, K.M. et al. (1996) Int. J. Biochem. Cell Biol. 28:619.
Long Name
Insulin-like Growth Factor Binding Protein 6
Entrez Gene IDs
3489 (Human); 16012 (Mouse)
Alternate Names
IBP6; IBP-6; IGF binding protein 6; IGF-binding protein 6; IGFBP6; IGFBP-6; insulin-like growth factor binding protein 6; insulin-like growth factor-binding protein 6

Citations for Recombinant Human IGFBP-6 Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

5 Citations: Showing 1 - 5
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  1. IGFBP6 is a novel nasopharyngeal carcinoma prognostic biomarker
    Authors: Q Chen, S Qin, Y Liu, M Hong, CN Qian, ET Keller, J Zhang, Y Lu
    Oncotarget, 2016-10-18;7(42):68140-68150.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  2. Expression of IGFBP6 in proliferative vitreoretinopathy rat models and its effects on retinal pigment epithelialJ cells.
    Authors: Zhu W, Wu Y, Cui C, Zhao H, Ba J, Chen H, Yu J
    Mol Med Rep, 2013-11-12;9(1):33-8.
    Species: Rat
    Sample Types: Whole Cells
    Applications: Bioassay
  3. Identification of astrocyte-expressed factors that modulate neural stem/progenitor cell differentiation.
    Authors: Barkho BZ, Song H, Aimone JB
    Stem Cells Dev., 2006-06-01;15(3):407-21.
    Species: Rat
    Sample Types: Whole Cells
    Applications: Bioassay
  4. Mannan-binding lectin-associated serine protease 3 cleaves synthetic peptides and insulin-like growth factor-binding protein 5.
    Authors: Cortesio CL, Jiang W
    Arch. Biochem. Biophys., 2006-03-03;449(1):164-70.
    Species: Human
    Sample Types: N/A
    Applications: Enzyme Assay
  5. Matrix metalloproteinase-7 degrades all insulin-like growth factor binding proteins and facilitates insulin-like growth factor bioavailability.
    Authors: Nakamura M, Miyamoto S, Maeda H, Ishii G, Hasebe T, Chiba T, Asaka M, Ochiai A
    Biochem. Biophys. Res. Commun., 2005-08-05;333(3):1011-6.
    Species: Human
    Sample Types: Recombinant Protein, Whole Cells
    Applications: Bioassay, Enzyme Assay

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