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Spermidine/putrescine import ATP-binding protein PotA Spermidine/putrescine transport system permease protein potB Spermidine/putrescine transport system permease protein potC Spermidine/putrescine- binding periplasmic protein Spermidine/putrescine import ATP-binding protein PotA Spermidine/putrescine transport system permease protein potB Spermidine/putrescine transport system permease protein potC Spermidine/putrescine- binding periplasmic protein S- adenosylmethionine decarboxylase proenzyme Spermidine synthase Spermidine Spermidine Putrescine Putrescine S- Adenosylmethionine H + Decarboxy-SAM CO 2 5'- Methylthioadenosine H + ATP H 2 O ADP P i H + ATP H 2 O ADP P i H + Pyruvic acid Magnesium Biotin Metabolism
potA potB potC potD potA potB potC potD speD speE Spermidine Spermidine Putrescine Putrescine S- Adenosylmethionine Hydrogen Ion Decarboxy-SAM Carbon dioxide 5'- Methylthioadenosine Hydrogen Ion Adenosine triphosphate Water Adenosine diphosphate Phosphate Hydrogen Ion Adenosine triphosphate Water Adenosine diphosphate Phosphate Hydrogen Ion Biotin Metabolism