Overview
| Product name | Recombinant Human Complement C1r subcomponent Protein |
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| Catalog No. | RP00142 |
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| Description | Recombinant Human Complement C1r subcomponent Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Met1-Asp705) of human Complement C1r subcomponent (Accession #NP_001724.3) fused with a 6×His tag at the C-terminus. |
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| Bio-Activity | Measured by its ability to cleave a colorimetric peptide substrate, N-carbobenzyloxy-Gly-Arg-ThioBenzyl ester (Z-GR-SBzl), in the presence of 5, 5’Dithio-bis (2-nitrobenzoic acid) (DTNB).The specific activity is >2828 pmol/min/μg, as measured under the described conditions.
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| Purity | > 95% by SDS-PAGE. |
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| Endotoxin | < 0.1 EU/μg of the protein by LAL method. |
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| Formulation | Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.Contact us for customized product form or formulation. |
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| Species | Human |
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| Calculated MW | 79.05 kDa |
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Background
The classical complement pathway plays a major role in innate immunity against infection. This pathway is triggered by C1, a multimolecular complex composed of the recognition protein C1q and two serine proteases, C1r and C1s. Following the C1q recognition, C1r is autoactivated, and in turn activates C1s, which cleaves C4 and C2, the C1 substrates. C1r acts by transforming the activation signal into an enzymic activity. C1r is a single-chain glycoprotein which can be cleaved into an A chain and a B chain upon activation. This protien recognizes full-length C1r chain and the cleaved B chain.
Product information
| Synonym | C1R; EDSPD1 |
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| Expression Host | HEK293 cells |
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| Tag | C-His |
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| Swiss-Prot | |
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| Gene ID | |
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Usage guide
| Storage | Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt.
After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week. |
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| Reconstitution | Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles. |
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* For research use only. Not for therapeutic or diagnostic purposes.
