>tr|A0AA96PS02|A0AA96PS02_9BACI Phosphoribosyl-AMP cyclohydrolase OS=Bacillus sp. SI2 GN=hisI MKPNFSKGLLPAVVIEEGTKEVLMLAYMNEEAYEKTLKTKRTWFYSRSRRSLWNKGETSG HVQHVQSLYLDCDQDAIVVVVKQVGPACHTGEKTCFHYKII