C1QBP Protein (AA 71-278) (His tag)

Catalog No. ABIN3131638

Product Details

Target: C1QBP (Complement Component 1, Q Subcomponent Binding Protein (C1QBP))

Protein Type: Recombinant

Protein Characteristics: AA 71-278

Origin: Mouse

Source: Escherichia coli (E. coli)

Purification tag / Conjugate: This C1QBP protein is labelled with His tag.

Application: Western Blotting (WB), SDS-PAGE (SDS), ELISA, Crystallization (Crys)

Sequence: LHTEGDKAFV EFLTDEIKEE KKIQKHKSLP KMSGDWELEV NGTEAKLLRK VAGEKITVTF NINNSIPPTF DGEEEPSQGQ KAEEQEPERT STPNFVVEVT KTDGKKTLVL DCHYPEDEIG HEDEAESDIF SIKEVSFQAT GDSEWRDTNY TLNTDSLDWA LYDHLMDFLA DRGVDNTFAD ELVELSTALE HQEYITFLED LKSFVKNQ
Sequence without tag. Tag location is at the discretion of the manufacturer. If you have a special request, please contact us.

Characteristics:

• Made in Germany - from design to production - by highly experienced protein experts.
• Mouse C1qbp Protein (raised in E. Coli) purified by multi-step, protein-specific process to ensure crystallization grade.
• State-of-the-art algorithm used for plasmid design (Gene synthesis).

This protein is a made to order protein and will be made for the first time for your order. Our experts in the lab will ensure that you receive a correctly folded protein.

The big advantage of ordering our made-to-order proteins in comparison to ordering custom made proteins from other companies is that there is no financial obligation in case the protein cannot be expressed or purified.

In the unlikely event that the protein cannot be expressed or purified we do not charge anything (other companies might charge you for any performed steps in the expression process for custom-made proteins, e.g. fees might apply for the expression plasmid, the first expression experiments or purification optimization).

When you order this made-to-order protein you will only pay upon receival of the correctly folded protein. With no financial risk on your end you can rest assured that our experienced protein experts will do everything to make sure that you receive the protein you ordered.

The concentration of our recombinant proteins is measured using the absorbance at 280nm. The protein's absorbance will be measured in several dilutions and is measured against its specific reference buffer.

The concentration of the protein is calculated using its specific absorption coefficient. We use the Expasy's protparam tool to determine the absorption coefficient of each protein.

Purification: Two step purification of proteins expressed in bacterial culture:

1. In a first purification step, the protein is purified from the cleared cell lysate using three different His-tag capture materials: high yield, EDTA resistant, or DTT resistant. Eluate fractions are analyzed by SDS-PAGE.
2. Protein containing fractions of the best purification are subjected to second purification step through size exclusion chromatography. Eluate fractions are analyzed by SDS-PAGE and Western blot.

Purity: >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.

Sterility: 0.22 μm filtered

Endotoxin Level: Endotoxin has not been removed. Please contact us if you require endotoxin removal.

Grade: Crystallography grade

Application Details

Application Notes: In addition to the applications listed above we expect the protein to work for functional studies as well. As the protein has not been tested for functional studies yet we cannot offer a gurantee though.

Comment:

Protein has not been tested for activity yet. In cases in which it is highly likely that the recombinant protein with the default tag will be insoluble our protein lab may suggest a higher molecular weight tag (e.g. GST-tag) instead to increase solubility. We will discuss all possible options with you in detail to assure that you receive your protein of interest.

Restrictions: For Research Use only

Handling

Format: Liquid

Buffer: 100 mM NaCL, 20 mM Hepes, 10% glycerol. pH value is at the discretion of the manufacturer.

Handling Advice: Avoid repeated freeze-thaw cycles.

Storage: -80 °C

Storage Comment: Store at -80°C.

Expiry Date: Unlimited (if stored properly)

Target Details

Target: C1QBP (Complement Component 1, Q Subcomponent Binding Protein (C1QBP))

Alternative Name: C1qbp (C1QBP Products)

Synonyms: SF2 Protein, X38k Protein, gC1qR Protein, C1QBP Protein, GC1QBP Protein, HABP1 Protein, SF2p32 Protein, gC1Q-R Protein, p32 Protein, AA407365 Protein, AA986492 Protein, D11Wsu182e Protein, P32 Protein, gC1qBP Protein, Habp1 Protein, complement C1q binding protein Protein, complement component 1, q subcomponent binding protein S homeolog Protein, complement component 1, q subcomponent binding protein Protein, C1QBP Protein, c1qbp.S Protein, LOC100227158 Protein, C1qbp Protein

Background: Is believed to be a multifunctional and multicompartmental protein involved in inflammation and infection processes, ribosome biogenesis, regulation of apoptosis, transcriptional regulation and pre-mRNA splicing. At the cell surface is thought to act as an endothelial receptor for plasma proteins of the complement and kallikrein-kinin cascades. Putative receptor for C1q, specifically binds to the globular "heads" of C1q thus inhibiting C1, may perform the receptor function through a complex with C1qR/CD93. In complex with cytokeratin-1/KRT1 is a high affinity receptor for kininogen-1/HMWK. Can also bind other plasma proteins, such as coagulation factor XII leading to its autoactivation. May function to bind initially fluid kininogen-1 to the cell membrane. The secreted form may enhance both extrinsic and intrinsic coagulation pathways. It is postulated that the cell surface form requires docking with transmembrane proteins for downstream signaling which might be specific for a cell-type or response. By acting as C1q receptor is involved in chemotaxis of immature dendritic cells and neutrophils and is proposed to signal through CD209/DC-SIGN on immature dendritic cells, through integrin alpha-4/beta-1 during trophoblast invasion of the decidua, and through integrin beta-1 during endothelial cell adhesion and spreading. Signaling involved in inhibition of innate immune response is implicating the PI3K-AKT/PKB pathway. In mitochondrial translation may be involved in formation of functional 55S mitoribosomes, the function seems to involve its RNA-binding activity. May be involved in the nucleolar ribosome maturation process, the function may involve the exchange of FBL for RRP1 in the association with pre-ribosome particles. Involved in regulation of RNA splicing by inhibiting the RNA-binding capacity of SRSF1 and its phosphorylation. Is required for the nuclear translocation of splicing factor U2AF1L4. Involved in regulation of CDKN2A- and HRK-mediated apoptosis. Stabilizes mitochondrial CDKN2A isoform smARF. May be involved in regulation of FOXC1 transcriptional activity and NFY/CCAAT-binding factor complex-mediated transcription. In infection processes acts as an attachment site for microbial proteins. May play a role in antibacterial defense. Involved in regulation of antiviral response by inhibiting DDX58- and IFIH1-mediated signaling pathways probably involving its association with MAVS after viral infection. {ECO:0000269|PubMed:17486078, ECO:0000269|PubMed:18166172, ECO:0000269|PubMed:18460468, ECO:0000269|PubMed:22904065}.

Molecular Weight: 24.7 kDa Including tag.

UniProt: O35658

Pathways: Ribonucleoprotein Complex Subunit Organization, Ribosome Assembly