>sp|A1VDX6|ISPDF_NITV4 Bifunctional enzyme IspD/IspF OS=Nitratidesulfovibrio vulgaris GN=ispDF MRTWVLLLAAGSGTRLATAGLPDAKQFLPLHGAPLYWASARTMAHVAGIEGIVFVFPPHR VEEERARISALDDGSVLGLDWHVVGGGAARQDSVACGLAALPRSCEAVLVHDAARPFASP ALVARVLSALHDGHAGVVPGIPLTDTVKETTDGFVANTPDRSRLVAVQTPQGFTLKALST AHETARTAGWNVTDDAALLERCGIPVRIVAGEVVNAKITTPEDLAMLDANEPQVTVPCVG WGYDVHRYGEGRPMKLGGVLIPEGPEVVAHSDGDVLLHALADALLGCIGAGDIGLHFPDS DAAFDNANSAMLLDRVLHMTHEARLRLTHVDLTIVAQVPKLSPWRDKIRANVARLLDLPV TSVNFKATTEEGLGFTGEKRGIKAIAAVTGLRPMP