*Source: E Coli or Yeast or Baculovirus or Mammalian Cell; *Purity: >90%; *Tag Information: His tagged; *Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 degree C for up to one week.; *Seq: MILHAQAKHG KPGLPWLVFL HGFSGDCHEW QEVGEAFADY SRLYVDLPGH GGSAAISVDG FDDVTDLLRK TLVSYNILDF WLVGYSLGGR VAMMAACQGL AGLCGVIVEG GHPGLQNAEQ RAERQRSDRQ WVQRFLTEPL TAVFADWYQQ PVFASLNDDQ RRELVALRSN NNGATLAAML EATSLAVQPD LRANLSARTF AFYYLCGERD SKFRALAAEL AADCHVIPRA GHNAHRENPA GVIASLAQIL RF; *Accession#: NP_416766.1; NC_000913.3; P37355; *NCBI Summary: MenH catalyzes the third step in the menaquinone biosynthesis pathway, a proton abstraction reaction that results in 2,5-elimination of pyruvate from |FRAME: [More information is available at EcoCyc: EG12438].