ID 2.3.3.10 DE Hydroxymethylglutaryl-CoA synthase. AN (S)-3-hydroxy-3-methylglutaryl-CoA acetoacetyl-CoA-lyase (CoA- AN acetylating). AN 3-hydroxy-3-methylglutaryl CoA synthetase. AN 3-hydroxy-3-methylglutaryl coenzyme A synthase. AN 3-hydroxy-3-methylglutaryl coenzyme A synthetase. AN 3-hydroxy-3-methylglutaryl-CoA synthase. AN 3-hydroxy-3-methylglutaryl-coenzyme A synthase. AN Acetoacetyl coenzyme A transacetase. AN Beta-hydroxy-beta-methylglutaryl-CoA synthase. AN HMG-CoA synthase. AN Hydroxymethylglutaryl coenzyme A synthase. AN Hydroxymethylglutaryl coenzyme alpha-condensing enzyme. CA Acetyl-CoA + H(2)O + acetoacetyl-CoA = (S)-3-hydroxy-3-methylglutaryl-CoA CA + CoA. CC -!- Formerly EC 4.1.3.5. PR PROSITE; PDOC00942; DR P54961, HMCS1_BLAGE; P23228, HMCS1_CHICK; P13704, HMCS1_CRIGR; DR Q01581, HMCS1_HUMAN; Q8JZK9, HMCS1_MOUSE; Q5R7Z9, HMCS1_PONAB; DR P17425, HMCS1_RAT ; P54870, HMCS2_BLAGE; Q2KIE6, HMCS2_BOVIN; DR P54868, HMCS2_HUMAN; P54869, HMCS2_MOUSE; O02734, HMCS2_PIG ; DR P22791, HMCS2_RAT ; P54872, HMCSA_DICDI; Q86HL5, HMCSB_DICDI; DR P54873, HMCS_ARATH ; P54871, HMCS_CAEEL ; P54874, HMCS_SCHPO ; DR P54839, HMCS_YEAST ; //