| Tissue Specificity | Isoform 1 is selectively expressed on CD34 hematopoietic stem and progenitor cells in adult and fetal bone marrow, fetal liver, cord blood and adult peripheral blood. Isoform 1 is not detected on other blood cells. Isoform 1 is also expressed in a number of non-lymphoid tissues including retina, pancreas, placenta, kidney, liver, lung, brain and heart. Found in saliva within small membrane particles. Isoform 2 is predominantly expressed in fetal liver, skeletal muscle, kidney, and heart as well as adult pancreas, kidney, liver, lung, and placenta. Isoform 2 is highly expressed in fetal liver, low in bone marrow, and barely detectable in peripheral blood. Isoform 2 is expressed on hematopoietic stem cells and in epidermal basal cells (at protein level). Expressed in adult retina by rod and cone photoreceptor cells (at protein level). |
| Post Translational Modifications | Isoform 1 and isoform 2 are glycosylated. Acetylation at Lys-225, Lys-257 and Lys-264 by NAT8 and NAT8B may control PROM1 protein expression and its function in cell apoptosis. |
| Function | May play a role in cell differentiation, proliferation and apoptosis. Binds cholesterol in cholesterol-containing plasma membrane microdomains and may play a role in the organization of the apical plasma membrane in epithelial cells. During early retinal development acts as a key regulator of disk morphogenesis. Involved in regulation of MAPK and Akt signaling pathways. In neuroblastoma cells suppresses cell differentiation such as neurite outgrowth in a RET-dependent manner. |
| Protein Name | Prominin-1Antigen Ac133Prominin-Like Protein 1Cd Antigen Cd133 |
| Cellular Localisation | Apical Cell MembraneMulti-Pass Membrane ProteinCell ProjectionMicrovillus MembraneCiliumPhotoreceptor Outer SegmentEndoplasmic ReticulumEndoplasmic Reticulum-Golgi Intermediate CompartmentFound In Extracellular Membrane Particles In Various Body Fluids Such As Cerebrospinal FluidSalivaSeminal Fluid And Urine |
| Alternative Antibody Names | Anti-Prominin-1 antibodyAnti-Antigen Ac133 antibodyAnti-Prominin-Like Protein 1 antibodyAnti-Cd Antigen Cd133 antibodyAnti-PROM1 antibodyAnti-PROML1 antibodyAnti-MSTP061 antibody |
Information sourced from Uniprot.org
![Western blot analysis of lysates from wild type (WT) and CD133 knockout (KO) HCT116 cells, using [KO Validated] CD133 Rabbit polyclonal antibody (STJ114584) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) (STJS000856) at 1:10000 dilution. Lysates/proteins: 25 Mu g per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 30s.](https://cdn11.bigcommerce.com/s-zso2xnchw9/images/stencil/124x110/products/93685/374848/STJ114584_2__18690.1713141458.jpg?c=1 "Western blot analysis of lysates from wild type (WT) and CD133 knockout (KO) HCT116 cells, using [KO Validated] CD133 Rabbit polyclonal antibody (STJ114584) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) (STJS000856) at 1:10000 dilution. Lysates/proteins: 25 Mu g per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 30s.")
![Western blot analysis of lysates from HCT116 cells, using [KO Validated] CD133 Rabbit polyclonal antibody (STJ114584) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) (STJS000856) at 1:10000 dilution. Lysates/proteins: 25 Mu g per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 30s.](https://cdn11.bigcommerce.com/s-zso2xnchw9/images/stencil/124x110/products/93685/374849/STJ114584_3__86070.1713141459.jpg?c=1 "Western blot analysis of lysates from HCT116 cells, using [KO Validated] CD133 Rabbit polyclonal antibody (STJ114584) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) (STJS000856) at 1:10000 dilution. Lysates/proteins: 25 Mu g per lane. Blocking buffer: 3% nonfat dry milk in TBST. Detection: ECL Basic Kit. Exposure time: 30s.")
