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Aspartate transaminase (AST) or aspartate aminotransferase, also known as AspAT/ASAT/AAT or (serum) glutamic oxaloacetic transaminase (GOT, SGOT), is a pyridoxal phosphate (PLP)-dependent transaminase enzyme (EC 2.6.1.1) that was first described by Arthur Karmen and colleagues in 1954.
Abwehrstelle or Ast, the local intelligence center in each military district in Nazi Germany; Alaska State Troopers, state police agency in Alaska, US; Chadian Social Action (French: Action Sociale Tchadienne), a former political party in Chad; Office of Commercial Space Transportation, of the US FAA; Asturians, as used by ast.wikipedia.org
An abstract syntax tree (AST) is a data structure used in computer science to represent the structure of a program or code snippet. It is a tree representation of the abstract syntactic structure of text (often source code ) written in a formal language .
The proportion of AST to ALT in hepatocytes is about 2.5:1, but because AST is removed from serum by the liver sinusoidal cells twice as quickly (serum half-life t 1/2 = 18 hr) compared to ALT (t 1/2 = 36 hr), so the resulting serum levels of AST and ALT are about equal in healthy individuals, resulting in a normal AST/ALT ratio around 1.
AST SpaceMobile is a publicly traded satellite designer and manufacturer based in Midland, Texas, United States. [ 4 ] [ 5 ] The company is building the SpaceMobile satellite constellation , a space-based cellular broadband network that will allow existing, unmodified smartphones to connect to satellites in areas with coverage gaps. [ 6 ]
AST Research, Inc., later doing business as AST Computer, was an American personal computer manufacturer. It was founded in 1980 in Irvine, California , by Albert Wong, Safi Qureshey , and Thomas Yuen , as an initialism of their first names.
In medicine, the presence of elevated transaminases, commonly the transaminases alanine transaminase (ALT) and aspartate transaminase (AST), may be an indicator of liver dysfunction. [ 1 ] [ 2 ] Other terms include transaminasemia , [ 3 ] and elevated liver enzymes (though they are not the only enzymes in the liver).
The Atlantic Time Zone is a geographical region that keeps standard time—called Atlantic Standard Time (AST)—by subtracting four hours from Coordinated Universal Time , resulting in UTC−04:00. AST is observed in parts of North America including several Caribbean islands.