All Photos(1)



C1 Inhibitor human

recombinant, expressed in CHO cells, ≥95% (SDS-PAGE), ≥95% (HPLC)

C1inh, Plasma protease C1 inhibitor, Serpin G1

origen biológico



expressed in CHO cells


≥95% (HPLC)
≥95% (SDS-PAGE)




≤2.6 nM IC50

mol peso

52.8 kDa


pkg of 200 μg


endotoxin, tested

Nº de acceso UniProt

enviado en

wet ice

temp. de almacenamiento


Gene Information

human ... SERPING1(710)

Descripción general

Plasma protease C1 inhibitor is a member of the serpin family of structurally related proteins. Recombinant Human C1 inhibitor is a highly glycosylated glycoprotein containing 478 amino acid residues (52.8kDa), corresponding to amino acids 23-500 of the C1 inhibitor precursor, and is fully functional in its ability to inhibit the C1 complex. Glycosylated C1 inhibitor migrates at an apparent molecular weight of approximately 80-90kDa by SDS PAGE analysis under reducing conditions.

Acciones bioquímicas o fisiológicas

Plasma protease C1 inhibitor is the primary regulator of the immune complement system. C1 inhibitor is a protease inhibitor that functions to inhibit the complement system in order to prevent over-activation or spontaneous activation. Inhibition is achieved by binding to and irreversibly inhibiting the C1r and C1s proteases of the C1 complex, which has the effect of shutting down all subsequent downstream events in the complement activation cascade. C1 inhibitor can also inhibit various other proteases, including Kallikrein, Factor XIa, and Factor XIIa. Deficiencies in C1 inhibitor are the primary cause of hereditary angioedema (HAE, hereditary angioneurotic edema), a disease characterized by edema in the respiratory and gastrointestinal tracts. In certain clinical situations, the direct administration of C1 inhibitor can be used to treat HAE and certain other conditions.

Forma física

Lyophilized from 10mM Sodium Phosphate, pH 7.5.


Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Código de clase de almacenamiento

13 - Non Combustible Solids



Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service