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| PR:000024231 | putative xanthine dehydrogenase molybdenum-binding subunit XdhA | | |  | | |
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| PR:Q46799 | putative xanthine dehydrogenase molybdenum-binding subunit XdhA (Escherichia coli K-12) | | |  | | |
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| PR:Q46799 | putative xanthine dehydrogenase molybdenum-binding subunit XdhA (Escherichia coli K-12) | | |  | | |