Homologs of Psest_1079 from Pseudomonas stutzeri RCH2
Isopropylmalate/homocitrate/citramalate synthases
SEED: Hydroxymethylglutaryl-CoA lyase (EC 4.1.3.4)
KEGG: hydroxymethylglutaryl-CoA lyase 
Top 100 hits from BLASTp (E < 0.01)
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