Human Complement Component C1r Antibody

Catalog # Availability Size / Price Qty
AF1807
AF1807-SP
Product Details
Citations (2)
FAQs
Supplemental Products
Reviews (1)

Human Complement Component C1r Antibody Summary

Species Reactivity
Human
Specificity
Detects human Complement Component C1r in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human Complement Component C1s is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived recombinant human Complement Component C1r
Ser18-Asp705
Accession # NP_001724
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human Complement Component C1r (Catalog # 1807-SE)
Immunoprecipitation
25 µg/mL
Conditioned cell culture medium spiked with Recombinant Human Complement Component C1r (Catalog # 1807-SE), see our available Western blot detection antibodies

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
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Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Complement Component C1r

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 (1). Both C1r and C1s activation involve cleavage of a specific Arg-Ile bond, converting single-chain proenzymes into active proteases of disulfide bond-linked chains (A and B) (2). The A chains contain multiple domains in the order of CUB1-EGF-CUB2-CCP1-CCP2-Activation Peptide. The B chains contain the serine protease catalytic domain. The full-length (amino acid residues 1‑705) of human C1r was expressed, which had the Leu152 natural variant (3). The purified protein corresponded to the processed active form, with A and B chains starting at residue Ser18 and Ile464, respectively.

References
  1. Arlaud, G.J. et al. (2002) Biochem. Soc. Trans. 30:1001.
  2. Lacroix, M. et al. (2001) J. Biol. Chem. 276:36233.
  3. Journet A. and M. Tosi (1986) Biochem. J. 240:783.
Entrez Gene IDs
715 (Human)
Alternate Names
C1r; complement C1r subcomponent; Complement component 1 subcomponent r; complement component 1, r subcomponent; Complement Component C1r; EC 3.4.21; EC 3.4.21.41

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Citations for Human Complement Component C1r Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Acquisition of C1 inhibitor by Bordetella pertussis virulence associated gene 8 results in C2 and C4 consumption away from the bacterial surface
    Authors: ES Hovingh, B van den Br, B Kuipers, E Pinelli, SHM Rooijakker, I Jongerius
    PLoS Pathog., 2017-07-24;13(7):e1006531.
    Species: Bacteria - Bordetella pertussis
    Sample Types: Cell Lysates
    Applications: Western Blot
  2. Effect of the Anti-C1s Humanized Antibody TNT009 and its Parental Mouse Variant TNT003 on HLA Antibody-induced Complement Activation - A Preclinical in Vitro Study
    Authors: M Wahrmann, J Mühlbacher, L Marinova, H Regele, N Huttary, F Eskandary, G Cohen, GF Fischer, GC Parry, JC Gilbert, S Panicker, GA Böhmig
    Am. J. Transplant, 2017-03-31;0(0):.
    Applications: Flow Cytometry

FAQs

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Reviews for Human Complement Component C1r Antibody

Average Rating: 4 (Based on 1 Review)

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Human Complement Component C1r Antibody
By Anonymous on 10/12/2019
Application: Func Sample Tested: Recombinant protein Species: Human