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You are here:Home » Molecular Biology » Growth Factors-IGF » IGFBP1, Recombinant, Human (Insulin-like Growth Factor-binding Protein 1, IBP-1, IGF-binding Protein 1, IGFBP-1, Placental Protein 12, PP12, IBP1)

IGFBP1, Recombinant, Human (Insulin-like Growth Factor-binding Protein 1, IBP-1,
IGF-binding Protein 1, IGFBP-1, Placental Protein 12, PP12, IBP1)

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Specifications

IGF-BPs controls the distribution, function and activity of IGFs in various cell tissues and body fluids. Currently there are seven named IGF-BPs that form high affinity complexes with both IGF-I and IGF-II. IGF-BP1 is a 25.4kD cysteine-rich secreted protein expressed in liver, deciduas, and kidneys and is the most abundant IGF-BP in amniotic fluid. Levels of IGF-BP1 in serum are lowest after food. IGF-BP1 binds to both IGF-I and IGF-II with equal affinity. Phosphorylated IGF-BP1 hinders IGF actions, where as nonphosphorylated IGF-BP1 is stimulatory. Recombinant human IGF-BP1 is a 25.4kD protein consisting of 235aa (Isoform A).
Catalog #149666
SourceRecombinant protein corresponding to human IGF-BP1, expressed in E.coli.
Biological ActivityDetermined by its ability to inhibit IGF-I induced proliferation of MCF-7. The ED50 was found to be 0.5g/ml in the presence of 6ng/ml of human IGF-I.
Endotoxin<0.1ng/ug (1EU/ug)
AA SequenceMAPWQCAPCS AEKLALCPPV SASCSEVTRS AGCGCCPMCA LPLGAACGVA TARCARGLSC RALPGEQQPL HALTRGQGAC VQESDASAPH AAEAGSPESP ESTEITEEEL LDNFHLMAPS EEDHSILWDA ISTYDGSKAL HVTNIKKWKE PCRIELYRVV ESLAKAQETS GEEISKFYLP NCNKNGFYHS RQCETSMDGE AGLCWCVYPW NGKRIPGSPE IRGDPNCQIY FNVQN
Storage and StabilityMay be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
SourceE. coli
Purity~98% (SDS-PAGE and HPLC)
ConcentrationAs reported
FormSupplied as a lyophilized powder.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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