C1 Inhibitor human

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

C1inh, Plasma protease C1 inhibitor, Serpin G1
En este momento no podemos mostrarle ni los precios ni la disponibilidad

biological source



expressed in CHO cells


≥95% (HPLC)
≥95% (SDS-PAGE)




≤2.6 nM IC50

mol wt

52.8 kDa


pkg of 200 μg


endotoxin, tested

UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... SERPING1(710)

General description

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.

Biochem/physiol Actions

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.

Physical form

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.


NONH for all modes of transport

WGK Germany


Flash Point F

Not applicable

Flash Point C

Not applicable

Certificado de Análisis
C1-inhibitor deficiency and angioedema.
Carugati A
Molecular Immunology, 38(2-3), 161-173 (2001)
C1 inhibitor.
A E Davis et al.
Methods in enzymology, 223, 97-120 (1993-01-01)
In vivo biosynthesis of endogenous and of human C1 inhibitor in transgenic mice: tissue distribution and colocalization of their expression.
Vinci G
Journal of Immunology, 169(10), 5948-5954 (2002)
C1 Esterase Inhibitor (Human)
P & T : A Peer-Reviewed Journal for Formulary Management, 35, 2-3 (2010)
Ruby H P Law et al.
Genome biology, 7(5), 216-216 (2006-06-02)
Serpins are a broadly distributed family of protease inhibitors that use a conformational change to inhibit target enzymes. They are central in controlling many important proteolytic cascades, including the mammalian coagulation pathways. Serpins are conformationally labile and many of the...

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