Abcam, ab264989, Human ASS1 knockout HeLa cell line

Size: 2 x 1000000Cells / vial / 1000000Cells / vial
ASS1 KO cell line available to order. KO validated by Immunocytochemistry, Western blot. Free of charge wild type control available. Knockout achieved by using CRISPR/Cas9, 1 bp insertion in exon 3 and Insertion of the selection cassette in exon 3. To order both knockout and wild-type control cells: select 2 x 1000000Cells/vial. To order only knockout cells: select 1000000Cells/vial.
Key facts
Cell type:HeLa,
Species or organism:Human,
Tissue:Cervix,
Form:LiquidSee storage information,
Knockout validation:Immunocytochemistry,Sanger Sequencing,Western blot,
Mutation description:Knockout achieved by using CRISPR/Cas9, 1 bp insertion in exon 3 and Insertion of the selection cassette in exon 3,
Disease:Adenocarcinoma

Product details:
We will provide viable cells that proliferate on revival.
This 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
limited use license
patent pages

Properties and Storage Information:
Gene name-ASS1, Gene editing type-Knockout, Gene editing method-CRISPR technology, Knockout validation-Immunocytochemistry, Sanger Sequencing, Western blot, Shipped at conditions-Dry Ice, Appropriate short-term storage conditions--196°C, Appropriate long-term storage conditions--196°C

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
ASS1 or argininosuccinate synthase 1 is an enzyme that plays an important role in the urea cycle. It catalyzes the conversion of citrulline and aspartate into argininosuccinate using ATP in the process. The ASS1 protein is commonly expressed in the liver where it actively participates in the detoxification of ammonia. It has a molecular mass of approximately 46 kDa. Some alternate names for this protein include ASS and ASS-1.
Biological function summary
Argininosuccinate synthase 1 contributes significantly to the synthesis of arginine an essential amino acid through its conversion activities. The enzyme operates as a homotrimer a complex consisting of three identical subunits. This enzymatic activity is indispensable in maintaining the balance of nitrogen and ammonia within the body particularly important for liver and kidney functions.
Pathways
ASS1 is a critical component of both the urea cycle and the nitric oxide metabolism pathway. The urea cycle helps in detoxifying ammonia by converting it into urea which is excreted in urine. In nitric oxide metabolism ASS1 links with nitric oxide synthase to facilitate the use of arginine in producing nitric oxide a vital signaling molecule. The pathway engagement partners include proteins like citrin which supplies aspartate for the reaction.
ASS1 has implications in citrullinemia and hepatocellular carcinoma. Citrullinemia results from mutations in the ASS1 gene leading to defective urea cycle function and ammonia accumulation. In cancer particularly hepatocellular carcinoma low expression of ASS1 correlates with poor prognosis as cancer cells often exhibit arginine auxotrophy. Connections through these conditions involve interactions with enzymes such as arginase which also influences arginine availability.