{"product_id":"abcam-ab266158","title":"Abcam, ab266158, Human PNP (Nucleoside phosphorylase) knockout HEK-293T cell line","description":"\u003cp\u003eSize: 2 x 1000000Cells \/ vial \/ 1000000Cells \/ vial\u003cbr\u003e\nPNP KO cell line available to order. KO validated by Western blot. Free of charge wild type control available. Knockout achieved by using CRISPR\/Cas9, Homozygous: 1 bp insertion in exon 2. To order both knockout and wild-type control cells: select 2 x 1000000Cells\/vial. To order only knockout cells: select 1000000Cells\/vial.\u003cbr\u003e\nKey facts\u003cbr\u003e\nCell type:HEK-293T,\u003cbr\u003e\nSpecies or organism:Human,\u003cbr\u003e\nTissue:Kidney,\u003cbr\u003e\nForm:LiquidSee storage information,\u003cbr\u003e\nKnockout validation:Sanger Sequencing,Western blot,\u003cbr\u003e\nMutation description:Knockout achieved by using CRISPR\/Cas9, Homozygous: 1 bp insertion in exon 2\u003c\/p\u003e\n\n\u003cp\u003eProduct details:\u003cbr\u003e\nWe will provide viable cells that proliferate on revival.\u003cbr\u003e\nThis product is subject to limited use licenses from The Broad Institute, ERS Genomics Limited and Sigma-Aldrich Co. LLC, and is developed with patented technology. For full details of the licenses and patents please refer to our\u003cbr\u003e\nlimited use license\u003cbr\u003e\npatent pages\u003c\/p\u003e\n\n\u003cp\u003eProperties and Storage Information:\u003cbr\u003e\nGene name-PNP, Gene editing type-Knockout, Gene editing method-CRISPR technology, Knockout validation-Sanger Sequencing, Western blot, Zygosity-Homozygous, Shipped at conditions-Dry Ice, Appropriate short-term storage conditions--196°C, Appropriate long-term storage conditions--196°C\u003c\/p\u003e\n\n\u003cp\u003eSupplementary Information:\u003cbr\u003e\nThis supplementary information is collated from multiple sources and compiled automatically.\u003cbr\u003e\nNucleoside phosphorylase also known as PNP or purine nucleoside phosphorylase is an enzyme with a vital mechanical role in nucleoside metabolism. The enzyme facilitates the phosphorolytic cleavage of the glycosidic bond in nucleosides producing ribose 1-phosphate and free bases such as guanine and hypoxanthine. This catalytic function plays an important part in nucleotide salvage pathways. PNP has a molecular mass of approximately 32000 Daltons and shows expression predominantly in the lymphoid tissues including the thymus and spleen.\u003cbr\u003e\nBiological function summary\u003cbr\u003e\nNucleoside phosphorylase is important in maintaining nucleotide homeostasis. It operates as a monomer or part of a homotrimeric complex which allows it to efficiently catalyze its reactions in purine metabolism. The absence or dysfunction of PNP results in the accumulation of nucleosides and diminished levels of nucleotide pools which can severely hamper DNA replication and repair.\u003cbr\u003e\nPathways\u003cbr\u003e\nNucleoside phosphorylase plays an integral role in the purine salvage pathway which is vital for recycling purines to form new nucleotides. It works alongside other enzymes such as adenine phosphoribosyltransferase to conserve energy by recycling purines. This pathway connects closely with the hypoxanthine-guanine phosphoribosyltransferase (HGPRT) pathway showing how PNP is intertwined in broader nucleotide biosynthesis and degradation processes.\u003cbr\u003e\nDeficiencies in nucleoside phosphorylase correlate strongly with immunodeficiencies notably purine nucleoside phosphorylase deficiency (PNP deficiency) which leads to compromised T-cell immunity. This condition can result in recurrent infections and developmental delay. Additionally the enzyme's dysregulation associates with certain leukemias where altered nucleotide pools contribute to the proliferation of malignant cells. In these contexts PNP interacts with proteins central to these disorders including those involved in purine metabolism placing it at a critical junction for potential therapeutic intervention.\u003c\/p\u003e","brand":"Abcam","offers":[{"title":"Default Title","offer_id":46845080207529,"sku":"ab266158","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/ar\/products\/abcam-ab266158","provider":"Iright","version":"1.0","type":"link"}