title: Resolution with a protein synthesising system of conflicting estimates for the stability constant for KATP3- formation.
abstract: Published stability constants for the formation of KATP3- at I = 0.1 range from 14 to 218 M-1. By studying the incorporation of [14C]leucine into protein by rat liver ribosomes at various K+ and ATP concentrations it is concluded that 14 M-1 is more likely to be the correct stability constant for KATP3- formation. Evidence for the formation of Mg2ATP and Mg(NO3)2 is also presented.
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism*; D000818:Animals; D007930:Leucine / Q000378:metabolism; D008099:Liver / Q000378:metabolism*; D008274:Magnesium / Q000494:pharmacology; D011188:Potassium / Q000378:metabolism*; D051381:Rats; D012269:Ribosomal Proteins / Q000096:biosynthesis
chemical_list: D012269:Ribosomal Proteins; D000255:Adenosine Triphosphate; D007930:Leucine; D008274:Magnesium; D011188:Potassium