GRADE & PURITYBioactive?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.Native?Native grade — protein/biomolecule in its natural (non-recombinant, non-denatured) form. Use when native structure and activity are required.High Performance?High-performance grade with optimized purity and performance characteristics. Use for sensitive analyses where ordinary grades fall short.EnzymoPure™?EnzymoPure™ — Aladdin's line of high-quality enzymatic solutions. Use when enzyme purity and defined activity drive assay or process performance.from Human plasma; Pre-lyophilization Protein Concentration: See COA
Bioactive, ActiBioPure™, Native, High Performance, EnzymoPure™, from Human plasma; Pre-lyophilization Protein Concentration: See COA ActiBioPure™,Bioactive,High Performance,Native,EnzymoPure™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at 2-8°C Ships Wet ice 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
Human Factor Alpha XIIa is a serine protease responsible for the activation of Factor XI to XIa in the contact activation system. Human Factor XII and prekallikrein are thought to be involved in a reciprocal activation mechanism in which Factor XIIa activates prekallikrein to kallikrein, which in turn converts Factor XII to XIIa. Factor XIIa activates Factor XI to XIa thereby triggering the Contact Factor cascade. ERL offers Factor α-XIIa which is activated by the autoactivation process with Dextran Sulfate and re-purified to remove the activator. The protein purity is determined by SDS-PAGE and activity is determined via clotting assay.
Buffer composition = 4 mM Sodium Acetate-HCl/0.15 M NaCl/pH 5.3
Extinction Coefficient (1%) = 14.1
Molecular Weight = 80,000 daltons
The above protein was purified from Human plasma units that test negative for antibodies to HBc, HCV, HIV 1/2, HTLV-I/II, and non reactive for HBsAg, HIV-1 RNA, HCV RNA, HBV DNA and Syphilis by FDA approved tests. Donors are screened for CJD.
Specifications
Product Name
Factor Alpha XIIa
Grade
ActiBioPure™, Bioactive, High Performance, Native, EnzymoPure™
Specifications & Purity
Bioactive, ActiBioPure™, Native, High Performance, EnzymoPure™, from Human plasma; Pre-lyophilization Protein Concentration: See COA
Biochemical and Physiological Mechanisms
Factor XII is a serum glycoprotein that participates in the initiation of blood coagulation, fibrinolysis, and the generation of bradykinin and angiotensin. Prekallikrein is cleaved by factor XII to form kallikrein, which then cleaves factor XII first to
from Human plasma; Pre-lyophilization Protein Concentration: See COA
Reconstitution
We suggest hydrating the protein with a good quality water to the original volume (See COA). After hydration aliquot into a useful (one time use) size and freeze at -80℃.
Storage
Store at 2-8°C
Shipped In
Wet ice
Stability And Storage
Store at 2-8℃ long term. Upon reconstitution, it is recommended to aliquot. Avoid freeze/thaw cycle.
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.
