GRADE & PURITYAnimal Free?Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material.Carrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.Bioactive?Bioactive grade — verified to retain biological activity in functional assays. Use when the molecule must be functionally active, not just pure.ActiBioPure™?ActiBioPure™ — Aladdin's premier line for bioactive and recombinant products. Use when both high purity and preserved biological activity are required.Azide Free?Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory.His Tag?His tag grade — recombinant protein bearing a His tag for affinity purification/detection. Use to purify, immobilize, or detect the tagged protein.≥95%(SDS-PAGE)
Expression System
HEK293
Accession #
P22692
Protein Tag
C-His
Expression system
HEK293
Endotoxin Concentration
<0.1 EU/μg
Bioactivity
Immobilized Recombinant Human IGFBP4 Protein (rp147285) at 2.0 μg/mL can bind Human IGF1. The ED50 for this effect is 29.64 ng/mL.
Animal Free,Carrier Free,Bioactive,ActiBioPure™,Azide Free,His-Tag,≥95%(SDS-PAGE) ActiBioPure™,Animal Free,Azide Free,Bioactive,Carrier Free,His Tag for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Overview
Purity
>95% SDS-PAGE. Purity is greater than 95% by SDS-PAGE gel and HPLC analyses.Endotoxin level is less than 0.1 ng per µg (1EU/µg).
Function
IGF-binding proteins prolong the half-life of the IGFs and 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.
29.7 kDa, under reducing conditions; 25.6 kDa, under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Shape
Lyophilized
Reconstitution
Reconstitute in water to a concentration of 0.1-0.5 mg/ml.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20~-80℃ for more than 1 year.
Images
Recombinant Human IGFBP4 Protein (rp147285) - Protein Bioactivity Immobilized Recombinant Human IGFBP4 Protein (rp147285) at 2.0 μg/mL can bind Human IGF1. The ED₅₀ for this effect is 29.64 ng/mL.
Recombinant Human IGFBP4 Protein (rp147285) - SDS-PAGE 3 μg/lane of Recombinant Human IGFBP4 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the band at 29.7 kDa under reducing conditions and 25.6 kDa under non-reducing conditions.
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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Products are supplied to verified businesses, institutions, and qualified professionals for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
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