Sinorhizobium meliloti GR4   C770_GR4Chr1478   (GI 433613231) | 
Histidine kinase, Classic 1 PAS,1 HisKA,1 HATPase_c
   | 
HK-RR-HK-RR | 
Signal transduction histidine kinase, nitrogen                     specific | 
Sinorhizobium meliloti GR4   C770_GR4Chr1480   (GI 433613233) | 
Histidine kinase, Classic 1 HAMP,1 PAS,1 HisKA,1 HATPase_c
   | 
HK-RR-HK-RR | 
Signal transduction histidine kinase involved in                     nitrogen fixation and metabolism regulation | 
Sinorhizobium meliloti GR4   C770_GR4Chr1481   (GI 433613234) | 
Response regulator, NtrC family 1 Response_reg,1 AAA_5,1 HTH_8
   | 
HK-RR-HK--RR | 
Response regulator containing CheY-like                     receiver, AAA-type ATPase, and DNA-binding domains |