No activity with S-methyl-5′-thioadenosine. The catabolism of of 5′-methylthioadenosine in Pseudomonas aeruginosa involves deamination to S-methyl-5′-thioinosine (EC 3.5.4.31, S-methyl-5′-thioadenosine deaminase) and phosphorolysis to hypoxanthine [1].