# pathway valine step pccA2 # Singleton 1 metacyc::MONOMER-13596,BRENDA::Q877I4 Q877I4;; Acidianus brierleyi;; Acidianus brierleyi heteromeric Singleton1 acyl CoA carboxylase biotin carboxyl carrier protein subunit (EC 2.1.3.15; EC 6.4.1.3; EC 6.3.4.14) curated:metacyc::MONOMER-13596