Guanine deaminase also known as cypin , guanase , guanine aminase , GAH , and guanine aminohydrolase is an aminohydrolase enzyme which converts guanine to xanthine .[ 5] [ 6] [ 7] cytosolic protein that interacts with PSD-95 . It promotes localized microtubule assembly in neuronal dendrites .[ 8]
Xanthine synthesis from guanine
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