Human CellExp CD55 / DAF, human recombinant | MyBioSource MBS844182 product information

product summary

company name :

MyBioSource

product type :

protein

product name :

Human CellExp CD55 / DAF, human recombinant

catalog :

MBS844182

quantity :

0.01 mg

price :

230 USD

more info or order :

MyBioSource product webpage

image

image 1 :

product information

catalog number :

MBS844182

products type :

Recombinant Protein

products full name :

Human CellExp CD55 / DAF, human recombinant

products short name :

[CD55/DAF]

products name syn :

[CD55; DAF; CR; CROM; TC]

other names :

[complement decay-accelerating factor isoform 1 preproprotein; Complement decay-accelerating factor; complement decay-accelerating factor; CD55 molecule, decay accelerating factor for complement (Cromer blood group); CD_antigen: CD55]

products gene name :

[CD55]

other gene names :

[CD55; CD55; CR; TC; DAF; CROM; CR; DAF]

uniprot entry name :

DAF_HUMAN

sequence length :

381

purity :

>=95% by SDS-PAGE gel

form :

Lyophilized

storage stability :

At -20 degree C. After reconstitution, aliquot and store at -20 degree C an duse within 3 months. Avoid repeated freezing and thawing cycles. Shelf Life: 12 months

tested application :

SDS-PAGE

image1 heading :

Testing Data

other info1 :

Source: HEK293 cells (Asp 35 - Ser 353). Formulation: Lyophilized from 0.22 um filtered solution in PBS, pH7.4. Normally Mannitol or Trehalose is added as protectants before lyophilization.

other info2 :

Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 ug/ml. Do not vortex. This solution can be stored at 2-8 degree C for up to 1 month. For extended storage, it is recommended to store at -20 degree C. Endotoxin Level: <1 EU/mug by LAL method. Biological Activity: Measured by its binding ability in a functional ELISA. When rhCD55 is coated at 1 mug/ml (100 ul/well), the concentration of rhCD97 that produces 50% of the optimal binding response is found to be approximately 0.15--2.0 mug/ml. Results: Measured by its binding ability in a functional ELISA. When rhCD55 is coated at 1 mug/ml (100 mul/well), the concentration of rhCD97 that produces 50% of the optimal binding response is found to be approximately 0.15--2.0 mug/ml. Handling: Centrifuge the vial prior to opening.

products categories :

Cytokines, Growth Factors & Hormones; Human cell expressed recombinant proteins Proteins and Enzymes; Human cell expressed recombinant proteinsProteins and Enzymes; Cytokines, Growth Factors & Hormones; CDsProteins and Enzymes; Cytokines, Growth Factors &

products description :

Background: CD55, also known as DAF or decay accelerating factor, is a member of the RCA (regulators of complement activation) family characterized by four to 30 SCRs (short consensus repeats) in their plasma-exposed regions. CD55 /DAF is a 70 kDa membrane protein that regulates the complement system on the cell surface. It prevents the assembly of the C3bBb complex (the C3-convertase of the alternative pathway) or accelerates the disassembly of preformed convertase, thus blocking the formation of the membrane attack complex. This glycoprotein is broadly distributed among hematopoietic and non-hematopoietic cells. It is a determinant for the Cromer blood group system. CD55 is known to bind CD97 via the first SCR. It also binds physiologically generated C3 convertases with its second and third SCRs. Binding results in an accelerated "decay", or dissociation of active C3 convertases, thus blocking the development of C' attack complexes on non-foreign cells. Finally, viruses and bacteria are also known to utilize multiple SCR sites for infection.

ncbi gi num :

10835143

ncbi acc num :

NP_000565.1

ncbi gb acc num :

NM_000574.4

uniprot acc num :

P08174

ncbi mol weight :

This protein is fused with 6×His tag at the C-terminus, has a calculated MW of 35.8 kDa. The predicted N-terminus is Asp 35. DTT-reduced Protein migrates as 50-65 kDa due to glycosylation.

ncbi summary :

This gene encodes a glycoprotein involved in the regulation of the complement cascade. Binding of the encoded protein to complement proteins accelerates their decay, thereby disrupting the cascade and preventing damage to host cells. Antigens present on this protein constitute the Cromer blood group system (CROM). Alternative splicing results in multiple transcript variants. The predominant transcript variant encodes a membrane-bound protein, but alternatively spliced transcripts may produce soluble proteins. [provided by RefSeq, Jul 2014]

uniprot summary :

CD55: This protein recognizes C4b and C3b fragments that condense with cell-surface hydroxyl or amino groups when nascent C4b and C3b are locally generated during C4 and c3 activation. Interaction of daf with cell-associated C4b and C3b polypeptides interferes with their ability to catalyze the conversion of C2 and factor B to enzymatically active C2a and Bb and thereby prevents the formation of C4b2a and C3bBb, the amplification convertases of the complement cascade. Belongs to the receptors of complement activation (RCA) family. 2 isoforms of the human protein are produced by alternative splicing. Protein type: Membrane protein, GPI anchor; Cell surface. Chromosomal Location of Human Ortholog: 1q32. Cellular Component: cell surface; integral to plasma membrane; extracellular region; plasma membrane; lipid raft. Molecular Function: viral receptor activity; protein binding; lipid binding. Biological Process: respiratory burst; elevation of cytosolic calcium ion concentration; entry of virus into host cell; negative regulation of complement activation; regulation of complement activation; innate immune response; complement activation, classical pathway; regulation of lipopolysaccharide-mediated signaling pathway. Disease: Blood Group, Cromer System

size1 :

0.01 mg

price1 :

230 USD

size2 :

0.05 mg

price2 :

655

more info or order :

MyBioSource product webpage