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| PR:Q2YPW5 | PAS domain:ATP-binding region, ATPase-like:Histidine kinase, HAMP region:Histidine kinase A, N-terminal:Bacterial sensor prot (Brucella abortus 2308) | | |  | | |
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| PR:Q04850 | nitrogen regulation protein NtrY (Azorhizobium caulinodans ORS 571) | | |  | | |
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| PR:Q8YHD4 | nitrogen regulation protein NtrY (Brucella melitensis bv. 1 str. 16M) | | |  | | |
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| PR:A0A0H3GBT9 | nitrogen regulation protein NtrY (Brucella suis 1330) | | |  | | |