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Safety Information

GF178

Sigma-Aldrich

C1 Inhibitor

Synonym(s):

C1 Inh, C1 esterase inhibitor, Serpin G1

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About This Item

UNSPSC Code:
12352200
eCl@ss:
32160405
NACRES:
NA.77

product name

C1 Inhibitor,
Human Recombinant,

impurities

<0.1 μg/mg protein endotoxin (<1 EU/μg)

Quality Level

100

UniProt accession no.

P05155

shipped in

dry ice

General description

C1 Inhibitor is a member of the serpin family of structurally related proteins, and 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.
Recombinant Human C1 Inhibitor is a highly glycosylated glycoprotein containing 445 amino acid residues (49.4kDa), corresponding to amino acids 56 – 500 of the C1 inhibitor precursor, and is fully functional in its ability to inhibit the C1 complex.
Product Source: Protein is expressed in E.coli.

Application

Research Category
Stem Cell Research
Research Sub Category
Growth Factors & Receptors

Quality

Measured by its ability to inhibit recombinant human complement component C1a cleavage of a colorimetric peptide substrate, N Carbobenzyloxy-Lys- ThioBenzyl ester (Z-K-SBzl). The expected IC50 is ≤ 2.6 nM.

Physical form

Product is presented in 10mM Sodium Phosphate, pH 7.5 and is filtered through a 0.2 micron filter before lyophilization.

Storage and Stability

Store at -20°C for up to 4 months from date of receipt Centrifuge the vial prior to opening.
Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein and store in working aliquots at -20°C.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

GF178:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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