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AB157987

Recombinant Human C4BPA protein

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Recombinant Human C4BPA protein is a Human Full Length protein, in the 49 to 597 aa range, expressed in Wheat germ, suitable for ELISA, WB.

View Alternative Names

C4BP, C4BPA, C4b-binding protein alpha chain, C4bp, Proline-rich protein, PRP

1 Images
SDS-PAGE - Recombinant Human C4BPA protein (AB157987)
  • SDS-PAGE

Unknown

SDS-PAGE - Recombinant Human C4BPA protein (AB157987)

ab157987 on a 12.5% SDS-PAGE stained with Coomassie Blue.

Key facts

Expression system

Wheat germ

Tags

GST tag N-Terminus

Applications

WB, ELISA

applications

Biologically active

No

Accession

P04003

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 0.79% Tris HCl, 0.31% Glutathione

storage-buffer

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "ELISA": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "WB": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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Sequence info

[{"sequence":"NCGPPPTLSFAAPMDITLTETRFKTGTTLKYTCLPGYVRSHSTQTLTCNSDGEWVYNTFCIYKRCRHPGELRNGQVEIKTDLSFGSQIEFSCSEGFFLIGSTTSRCEVQDRGVGWSHPLPQCEIVKCKPPPDIRNGRHSGEENFYAYGFSVTYSCDPRFSLLGHASISCTVENETIGVWRPSPPTCEKITCRKPDVSHGEMVSGFGPIYNYKDTIVFKCQKGFVLRGSSVIHCDADSKWNPSPPACEPNSCINLPDIPHASWETYPRPTKEDVYVVGTVLRYRCHPGYKPTTDEPTTVICQKNLRWTPYQGCEALCCPEPKLNNGEITQHRKSRPANHCVYFYGDEISFSCHETSRFSAICQGDGTWSPRTPSCGDICNFPPKIAHGHYKQSSSYSFFKEEIIYECDKGYILVGQAKLSCSYSHWSAPAPQCKALCRKPELVNGRLSVDKDQYVEPENVTIQCDSGYGVVGPQSITCSGNRTWYPEVPKCEWETPEGCEQVLTGKRLMQCLPNPEDVKMALEVYKLSLEIEQLELQRDSARQSTLDKEL","proteinLength":"Full Length","predictedMolecularWeight":null,"actualMolecularWeight":null,"aminoAcidEnd":597,"aminoAcidStart":49,"nature":"Recombinant","expressionSystem":"Wheat germ","accessionNumber":"P04003","tags":[{"tag":"GST","terminus":"N-Terminus"}]}]
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Properties and storage information

Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-80°C
Appropriate long-term storage conditions
-80°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

C4BPA also known as C4b-binding protein alpha chain is an important component in the immune system. It has a molecular mass of approximately 570 kDa. This protein is mainly expressed in the liver and is secreted into the plasma. C4BPA functions by binding to complement component 4b which is a part of the complement system responsible for managing immune responses and clearing pathogens.
Biological function summary

C4BPA plays a significant role in the regulation of the complement cascade specifically the classical and lectin pathways. It acts as a cofactor for factor I-mediated cleavage of C4b thereby inhibiting the progression of the complement activation. C4BPA forms a complex with other proteins such as C4BPB and this complex is essential for regulating the complement system and preventing damage to host cells.

Pathways

C4BPA is deeply involved in both the classical and lectin complement pathways. These pathways are important for antigen clearance and inflammation. C4BPA works together with proteins like complement component 3 (C3) to efficiently regulate these pathways preventing excessive complement activation. It associates with downstream effectors maintaining balance in immune defense mechanisms and inflammation control.

C4BPA shows significant connections to autoimmune diseases and infections. Deficiencies or malfunctions in C4BPA can lead to conditions such as systemic lupus erythematosus where its regulatory role on complement activation becomes compromised. In infections C4BPA interacts with proteins like factor H playing a role in modulating host responses to prevent tissue damage. Understanding the interactions and regulatory processes involving C4BPA is important for developing therapeutic strategies for these conditions.
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Specifications

Form

Liquid

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General info

Function

Controls the classical pathway of complement activation. It binds as a cofactor to C3b/C4b inactivator (C3bINA), which then hydrolyzes the complement fragment C4b. It also accelerates the degradation of the C4bC2a complex (C3 convertase) by dissociating the complement fragment C2a. Alpha chain binds C4b. It interacts also with anticoagulant protein S and with serum amyloid P component.

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Product protocols

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Target data

Controls the classical pathway of complement activation. It binds as a cofactor to C3b/C4b inactivator (C3bINA), which then hydrolyzes the complement fragment C4b. It also accelerates the degradation of the C4bC2a complex (C3 convertase) by dissociating the complement fragment C2a. Alpha chain binds C4b. It interacts also with anticoagulant protein S and with serum amyloid P component.
See full target information C4BPA
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