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Human HABP1 / C1QBP Protein  pdf  pdf  pdf


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Synonym

C1QBP, HABP1, SF2P32, p33

Source

Recombinant Human C1QBP /HABP1 Protein (rh C1QBP / HABP1) His 75 - Gln 282 (Accession # AAH00435) was produced in E.coli cells at ACROBiosystems.

Molecular Characterization

rh C1QBP / HABP1 is fused with a polyhistidine tag at the C-terminus, and has a calculated MW of 24.6 kDa. The predicted N-terminus is Met. DTT-reduced Protein migrates as 36 kDa in SDS-PAGE .

Endotoxin

Less than 1.0 EU per μg of the rh C1QBP / HABP1 by the LAL method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally Mannitol or Trehalose are added as protectants before lyophilization.

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Reconstitution

See Certificate of Analysis for reconstitution instructions and specific concentrations.

Storage

Avoid repeated freeze-thaw cycles.

No activity loss was observed after storage at:
In lyophilized state for 1 year (4oC); After reconstitution under sterile conditions for 3 months (-70oC).

 

SDS-PAGE


Recombinant Human C1QBP /HABP1 Protein
The purity of rh C1QBP / HABP1 was determined by DTT-reduced (+) SDS-PAGE and staining overnight with Coomassie Blue.
 
 

Background

Complement component 1 Q subcomponent-binding protein, mitochondrial (C1QBP), a member of the MAM33 family, is also known as ASF/SF2-associated protein p32, glycoprotein gC1qBP (C1qBP), mitochondrial matrix protein p32 and hyaluronan-binding protein 1, which is a homotrimer that contains three monomers forming a donut-shaped structure with an unusually asymmetric charge distribution on the surface. C1QBP associates with C1r and C1s in order to yield the first component of the serum complement system. C1QBP has also been identified as the p32 subunit of pre-mRNA splicing factor SF2, as well as a hyaluronic acid-binding protein. Furthermore, C1QBP has been shown to interact with Protein kinase D1, BAT2, PRKCD, PKC alpha and Protein kinase Mζ .

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