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.His Tag?His tag grade — recombinant protein bearing a His tag for affinity purification/detection. Use to purify, immobilize, or detect the tagged protein.≥90%(SDS-PAGE)expressed in HEK293; See COA
Accession #
O00292
Protein Tag
C-His
Expression system
HEK293
Endotoxin Concentration
<1.0 EU/μg
Bioactivity
Immobilized Recombinant Human LEFTY2 Protein (rp222591) at 1.0 μg/mL can bind Recombinant LEFTY1/LEFTY2 Antibody (Ab112968) with the EC50 of 6.7 ng/mL.
Animal Free,Carrier Free,Bioactive,ActiBioPure™,His Tag,≥90%(SDS-PAGE),expressed in HEK293; See COA ActiBioPure™,Animal 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.
ActiBioPure™, Animal Free, Bioactive, Carrier Free, His Tag
Specifications & Purity
Animal Free, Carrier Free, Bioactive, ActiBioPure™, His Tag, ≥90%(SDS-PAGE), expressed in HEK293; See COA
Biochemical and Physiological Mechanisms
LEFTY2 functions as an important regulator in ensuring proper left-right asymmetry during embryonic development. It is a monomeric protein that is not part of a larger complex. LEFTY2 contributes to the modulation of Nodal signaling inhibiting excessive a
Bioactivity
Immobilized Recombinant Human LEFTY2 Protein (rp222591) at 1.0 μg/mL can bind Recombinant LEFTY1/LEFTY2 Antibody (Ab112968) with the EC50 of 6.7 ng/mL.
43.4 kDa, under reducing conditions; 39.4 kDa, under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Concentration
expressed in HEK293; See COA
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 0.1 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20℃ for 12 months. Upon reconstitution, it is recommended to aliquot. Avoid freeze/thaw cycle.
Images
Recombinant Human LEFTY2 Protein (rp222591) - ELISA
Immobilized Recombinant Human LEFTY2 Protein (rp222591) at 1.0 μg/mL can bind Recombinant LEFTY1/LEFTY2 Antibody (Ab112968) with the EC₅₀ of 6.7 ng/mL.
Recombinant Human LEFTY2 Protein (rp222591) - SDS-PAGE
3 μg/lane of Recombinant Human LEFTY2 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing a band at 43.4 kDa under reducing conditions and 39.4 kDa under non-reducing conditions.
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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