title: Protein Ser/Thr/Tyr phosphorylation in the Archaea.
abstract: The third domain of life, the Archaea (formerly Archaebacteria), is populated by a physiologically diverse set of microorganisms, many of which reside at the ecological extremes of our global environment. Although ostensibly prokaryotic in morphology, the Archaea share much closer evolutionary ties with the Eukarya than with the superficially more similar Bacteria. Initial genomic, proteomic, and biochemical analyses have revealed the presence of "eukaryotic" protein kinases and phosphatases and an intriguing set of serine-, threonine-, and tyrosine-phosphorylated proteins in the Archaea that may offer new insights into this important regulatory mechanism.
authors.affiliation: From the Department of Biochemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061.
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Kennelly
mesh_terms: D001105:Archaea / Q000201:enzymology* / Q000235:genetics; D019843:Archaeal Proteins / Q000235:genetics / Q000378:metabolism*; D017346:Protein Serine-Threonine Kinases / Q000235:genetics / Q000378:metabolism*
chemical_list: D019843:Archaeal Proteins; D017346:Protein Serine-Threonine Kinases
keywords: Archaea; Archaebacteria; Evolution; Protein Kinases; Protein Phosphatase; Protein Phosphorylation