Bioactivity
(C4BPa, also known as C4b-binding protein alpha chain or C4BPalpha, is a subunit of the complement factor C4b-binding protein (C4BP), which plays a crucial role in the regulation of the complement system, a part of the immune system that helps to defend the body against infection.C4BPa is part of a heterodimeric protein complex that consists of two chains, the alpha chain (C4BPa) and the beta chain (C4BPB). It can bind to C4b and C3b, thereby inhibiting the formation of the C3 convertase and preventing excessive complement activation. Thus a functional binding ELISA assay was conducted to detect the interaction of recombinant human C4BPa and recombinant mouse C4b. Briefly, C4BPa was diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100 ul were then transferred to C4b-coated microtiter wells and incubated for 1h at 37 degree C. Wells were washed with PBST and incubated for 1h with anti-C4BPa pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody for 1h at 37 degree C, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50 uL stop solution to the wells and read at 450/630 nm immediately. The binding activity of recombinant human C4BPa and recombinant mouse C4b was shown in Figure 1, the EC50 for this effect is 0.01 ug/mL)
C4 Binding Protein Alpha (C4BPa) Active Protein | C4BPa active protein
Active C4 Binding Protein Alpha (C4BPa)
Gene Names
C4BPA; PRP; C4BP
Applications
Activity Assay, Cell Culture
Purity
Greater than 95% by SDS-PAGE
Synonyms
C4 Binding Protein Alpha (C4BPa); N/A; Active C4 Binding Protein Alpha (C4BPa); C4 Binding Protein Alpha; C4BP-a; PRP; C4BP; Complement Component 4 Binding Protein,Alpha; Proline-rich protein4; C4BPa active protein
Host
E Coli
Purity/Purification
Greater than 95% by SDS-PAGE
Form/Format
Freeze-dried powder; PBS, pH7.4, containing 0.01% SKL, 1mM DTT, 5% Trehalose and Proclin300.
Sequence
Gln548~Leu597
Applicable Applications for C4BPa active protein
Activity Assay, Cell Culture
Species
Human
Expression System
Prokaryotic expression
Tag
N-terminal His Tag
Endotoxin Level
<1.0EU per 1ug (determined by the LAL method)
Isoelectric Point
6
Research Area
Immune molecule
Preparation and Storage
Store at 2-8 degree C for one month, -80 degree C for 12 months
Bioactivity
(C4BPa, also known as C4b-binding protein alpha chain or C4BPalpha, is a subunit of the complement factor C4b-binding protein (C4BP), which plays a crucial role in the regulation of the complement system, a part of the immune system that helps to defend the body against infection.C4BPa is part of a heterodimeric protein complex that consists of two chains, the alpha chain (C4BPa) and the beta chain (C4BPB). It can bind to C4b and C3b, thereby inhibiting the formation of the C3 convertase and preventing excessive complement activation. Thus a functional binding ELISA assay was conducted to detect the interaction of recombinant human C4BPa and recombinant mouse C4b. Briefly, C4BPa was diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100 ul were then transferred to C4b-coated microtiter wells and incubated for 1h at 37 degree C. Wells were washed with PBST and incubated for 1h with anti-C4BPa pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody for 1h at 37 degree C, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50 uL stop solution to the wells and read at 450/630 nm immediately. The binding activity of recombinant human C4BPa and recombinant mouse C4b was shown in Figure 1, the EC50 for this effect is 0.01 ug/mL)
Bioactivity
(C4BPa, also known as C4b-binding protein alpha chain or C4BPalpha, is a subunit of the complement factor C4b-binding protein (C4BP), which plays a crucial role in the regulation of the complement system, a part of the immune system that helps to defend the body against infection.C4BPa is part of a heterodimeric protein complex that consists of two chains, the alpha chain (C4BPa) and the beta chain (C4BPB). It can bind to C4b and C3b, thereby inhibiting the formation of the C3 convertase and preventing excessive complement activation. Thus a functional binding ELISA assay was conducted to detect the interaction of recombinant human C4BPa and recombinant mouse C4b. Briefly, C4BPa was diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100 ul were then transferred to C4b-coated microtiter wells and incubated for 1h at 37 degree C. Wells were washed with PBST and incubated for 1h with anti-C4BPa pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody for 1h at 37 degree C, wells were aspirated and washed 5 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37 degree C. Finally, add 50 uL stop solution to the wells and read at 450/630 nm immediately. The binding activity of recombinant human C4BPa and recombinant mouse C4b was shown in Figure 1, the EC50 for this effect is 0.01 ug/mL)
SDS-PAGE
(Figure. SDS-PAGE)
SDS-PAGE
(Figure. SDS-PAGE)
Product Categories/Family for C4BPa active protein
NCBI and Uniprot Product Information
NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Accession #
Molecular Weight
67,033 Da
NCBI Official Full Name
C4b-binding protein alpha chain
NCBI Official Synonym Full Names
complement component 4 binding protein, alpha
NCBI Official Symbol
C4BPA
NCBI Official Synonym Symbols
PRP; C4BP
NCBI Protein Information
C4b-binding protein alpha chain; proline-rich protein
UniProt Protein Name
C4b-binding protein alpha chain
UniProt Gene Name
C4BPA
UniProt Synonym Gene Names
C4BP; C4bp; PRP
UniProt Entry Name
C4BPA_HUMAN
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Product Notes
The C4BPa c4bpa (Catalog #AAA161854) is an Active Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. AAA Biotech's C4 Binding Protein Alpha (C4BPa) can be used in a range of immunoassay formats including, but not limited to, Activity Assay, Cell Culture. Researchers should empirically determine the suitability of the C4BPa c4bpa for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. The amino acid sequence is listed below: Gln548~Leu 597. It is sometimes possible for the material contained within the vial of "C4 Binding Protein Alpha (C4BPa), Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.Item has been added to Shopping Cart
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