>sp|C6BYK9|ISPG_MARSD 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase (flavodoxin) OS=Maridesulfovibrio salexigens GN=ispG MINRKKTRELFIGDVGIGGDNPIRVQSMCNTDTRDALSTRAQIDALAEAGCEIVRVAVPD EEAAKALPQIRKGSPVPLVADIHFDYRLALSAMEAGIDALRINPGNIGGEDKVDSVVSAA KERNVPIRIGVNGGSLDKALLAKYGGPTPQAMVESALEHVALLEKRNFYNTKISLKSSSV LNTIAAYKLLAEKVDYPQHVGITEAGTLVRGAVKSSVGLGILFWEGLGDTMRVSLTHDPV AEVGVAWEILRSLGLRERGPEIVSCPTCGRTEIELIDLAQKVEDNLRGVEDVFTVAVMGC VVNGPGEAREADIGIAGGRGLGIIFRKGEVIRKVKGDENLLPEFMKEIELFLKEKRGQ