>tr|A0AA43NFT3|A0AA43NFT3_9RALS Phosphoribosyl-AMP cyclohydrolase OS=Ralstonia sp. GP73 GN=hisI MSKKWLNKVHWDDNGLVPVIVQEQGSNDVLMFAFMNREALQKTVESGEAVFWSRSRKRLW HKGEESGHIQKVHEIRLDCDEDVILLRVTQIGGIACHTGRHACFFQKFEGNVEDGDWHTV EPVLKNPDDIYAGKPGHNHE