Abcam, ab232755, Anti-TPOR/MPL antibody

Size: 100µg
Rabbit Polyclonal TPOR/MPL antibody. Suitable for WB, IHC-P and reacts with Mouse, Human samples. Cited in 1 publication. Immunogen corresponding to Recombinant Fragment Protein within Mouse Mpl aa 50-300.
Key facts
Host species:Rabbit,
Clonality:Polyclonal,
Isotype:IgG,
Carrier free:No,
Reacts with:Mouse, Human,
Applications:IHC-P, WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:Recombinant Fragment Protein within Mouse Mpl aa 50-300. The exact immunogen used to generate this antibody is proprietary information.Q08351

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Immunogen, Purification notes-Antigen-specific affinity chromatography followed by Protein A affinity chromatography., Storage buffer-pH: 7.4Preservative: 0.02% Sodium azideConstituents: PBS, 55.77% Glycerol (glycerin, glycerine), Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
The target TPOR/MPL also known as the MPL protein or Myeloproliferative Leukemia protein functions as a receptor for thrombopoietin (TPO). It is composed of 635 amino acids with a molecular weight of approximately 70 kDa. This protein is expressed primarily on the surface of hematopoietic progenitor cells megakaryocytes and platelets. The receptor a cell surface-bound protein plays a significant role by binding to TPO facilitating cellular signaling involved in cell proliferation and maturation.
Biological function summary
The TPOR/MPL protein promotes the growth and differentiation of multiple blood cell types through direct interactions with TPO. When TPO binds to MPL it triggers a signaling cascade essential for the regulation of platelet production and maintenance of hematopoiesis. This receptor forms part of a larger receptor complex that includes JAK2 protein kinase which further transduces signals for cell growth and survival. The engagement of JAK2 enhances the functional capability of MPL leading to the activation of various downstream effectors.
Pathways
The TPOR/MPL protein is central to the thrombopoietin signaling pathway facilitating the activation of downstream molecules like STAT3 and STAT5. These transcription factors activate gene expression critical for cell proliferation and survival. MPL is closely related to other hematopoietic receptors within the Jak-STAT pathway. The pathway is integral for hematopoietic stem cell function and involves interactions with proteins like EPO receptor which utilizes similar pathways for erythropoiesis.
The TPOR/MPL protein is implicated in myeloproliferative disorders such as essential thrombocythemia and primary myelofibrosis. Mutations in the MPL gene can alter receptor function leading to uncontrolled cell proliferation. Such mutations often present in tandem with mutations in other proteins like JAK2 amplifying the disease processes. The inappropriate activation of the MPL signaling pathway results in excessive production of platelets or fibrosis within the bone marrow contributing significantly to disease phenotypes.