>tr|A0A437SK45|A0A437SK45_BACTU Phosphoribosyl-AMP cyclohydrolase OS=Bacillus thuringiensis GN=hisI MKPNFSKGLLPAVVIEEGTKEVLMLAYMNEEAYEKTLKTKRTWFYSRSRRSLWNKGETSG HVQHVQSLYLDCDQDSIVVVVKQVGPACHTGEKTCFHYKII