Human FAM20B Antibody

Detection of Human FAM20B by Western Blot.

Western blot shows lysates of ZR-75 human breast cancer cell line. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human FAM20B Monoclonal Antibody (Catalog # MAB8427) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for FAM20B at approximately 46 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Detection of FAM20B by Western Blot

FAM20C-mediated control of CS biosynthesis is exerted by its physical interaction with C4ST-1.a Schematic diagram of sulfation pathways for the chondroitin backbone. Characteristic CS disaccharide units, including A, C, D, and E, are sequentially formed under the control of CS-specific sulfotransferases such as C4ST-1, C4ST-2, and C6ST-1. b Gel filtration elution profiles of CS chains from mouse fibroblastic L or sog9 cells overexpressing wild-type FAM20B or FAM20C (Data are derived from the single experiment). Numbered arrowheads (200 k, 65 k, 37 k, and 18 k) indicate the elution position of 200-, 65-, 37-, and 18-kDa saccharides derived from size-defined commercial dextran, respectively. c Pulldown (PD) and immunoblotting (IB) analysis of culture medium from COS-1 cells co-expressing soluble forms of His-tagged C4ST-1 and FLAG-tagged FAM20 proteins. Data are obtained from three independent experiments and representative images are shown. d Sulfotransferase activities of C4ST-1 alone (Mock) and that from cells co-transfected with the individual FAM20 proteins (n = 3 independent experiments, Dunnett’s multiple comparison test, two-sided). e The 4S/6S ratio of CS chains from HeLa cell lines overexpressing wild-type or mutant FAM20C proteins (n = 4 independent experiments, Dunnett’s multiple comparison test, two-sided). Data in d and e are represented as the mean ± s.d. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36572689), licensed under a CC-BY license. Not internally tested by R&D Systems.

Detection of FAM20B by Western Blot

FAM20C mutants enhance biomineralization in human osteosarcoma cells. A, b Expression of FAM20C, FAM20B, and C4ST-1 in stable Saos-2 cell lines overexpressing individual FAM20 proteins at the a transcriptional and b translational levels. GAPDH was used as an internal standard in (a), and as a loading control in (b). Data are obtained from three independent experiments and representative images are shown. c The 4S/6S ratio of CS chains from the stable Saos-2 cell lines in (a) and (b) (n = 3 independent experiments, Dunnett’s multiple comparison test, two-sided). d, e Biomineralization level of the 21-day cultures of the stable Saos-2 cell lines in (a) and (b) was assessed by Alizarin red staining (d), followed by colorimetric quantification of the dye extracts derived from the stained cultures (e, n = 4 independent experiments, Dunnett’s multiple comparison test, two-sided). Data in c and e are represented as the mean ± s.d. Source data are provided as a Source Data file. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36572689), licensed under a CC-BY license. Not internally tested by R&D Systems.