This gene encodes the beta subunit of prolyl 4-hydroxylase, a highly abundant multifunctional enzyme that belongs to the protein disulfide isomerase family. When present as a tetramer consisting of two alpha and two beta subunits, this enzyme is involved in hydroxylation of prolyl residues in preprocollagen. This enzyme is also a disulfide isomerase containing two thioredoxin domains that catalyze the formation, breakage and rearrangement of disulfide bonds. Other known functions include its ability to act as a chaperone that inhibits aggregation of misfolded proteins in a concentration-dependent manner, its ability to bind thyroid hormone, its role in both the influx and efflux of S-nitrosothiol-bound nitric oxide, and its function as a subunit of the microsomal triglyceride transfer protein complex.

推荐稀释比 WB: 1/2500-1/5000; FC: 1/200-1/2000; ICC/IF: 1/100-1/1000

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Validation of P4HB knockdown using flow cytometry. Wild-type(WT, Blue) and knockdown(KD, Green) HT1080 cells were stained with P4HB antibody and analyzed using BD flow cytometer.

Flow cytometric analysis of P4HB expression in HepG2 cells using P4HB antibody . Green, isotype control; red, P4HB.

Immunocytochemical staining of HepG2 cells with P4HB antibody . Nuclei were stained blue with DAPI; P4HB was stained magenta with Alexa Fluor® 647. Images were taken using Leica stellaris 5. Protein abundance based on laser Intensity and smart gain: Medium. Scale bar, 20 μm.

Western blotting analysis using P4HB antibody . Total cell lysates (30 μg) from various cell lines were loaded and separated by SDS-PAGE. The blot was incubated with P4HB antibody and HRP-conjugated goat anti-mouse secondary antibody respectively. Image was developed using FeQ™ ECL Substrate Kit .

Western blotting analysis using P4HB antibody . P4HB expression in wild type (WT) and P4HB shRNA knockdown (KD) HT-1080 cells with 30 μg of total cell lysates. Hsp90 α serves as a loading control. The blot was incubated with P4HB antibody and HRP-conjugated goat anti-mouse secondary antibody respectively. Image was developed using FeQ™ ECL Substrate Kit .

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