| UniProtKB/Swiss-Prot |
| Q66GP9, NOS1_ARATH; | P29475, NOS1_HUMAN; | Q9Z0J4, NOS1_MOUSE; |
| O19132, NOS1_RABIT; | P29476, NOS1_RAT; | Q29498, NOS1_SHEEP; |
| P35228, NOS2A_HUMAN; | Q27995, NOS2_BOVIN; | O62699, NOS2_CANFA; |
| Q28314, NOS2_CAPHI; | Q92037, NOS2_CARAU; | O54705, NOS2_CAVPO; |
| Q90703, NOS2_CHICK; | O46660, NOS2_MACMU; | P29477, NOS2_MOUSE; |
| Q92091, NOS2_ONCMY; | P79290, NOS2_PIG; | O19114, NOS2_RABIT; |
| Q06518, NOS2_RAT; | P29473, NOS3_BOVIN; | Q9TUX8, NOS3_CANFA; |
| P97270, NOS3_CAVPO; | P29474, NOS3_HUMAN; | P70313, NOS3_MOUSE; |
| Q28969, NOS3_PIG; | Q62600, NOS3_RAT; | P79209, NOS3_SHEEP; |
| O61608, NOS_ANOST; | Q27571, NOS_DROME; | O61309, NOS_LYMST; |
| Q6YPG5, NOS_ORYSJ; | Q26240, NOS_RHOPR; | Q9I9M2, NOS_SQUAC; |
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