Protein
Caffeine dehydrogenase subunit alpha
Organism
Pseudomonas sp. (strain CBB1)
Function
Catalyzes the hydrolitical oxidation of 1,3,7-trimethylxanthine (caffeine) by incorporation of an oxygen atom originating from a water molecule into position C-8 to produce 1,3,7-trimethyluric acid (TMU). Coenzyme Q0 is the preferred electron acceptor and coenzyme Q2 can also be used, but oxygen and NADP cannot.
Similarity
Belongs to the xanthine dehydrogenase family.
Sequence
MFADINKGDAFGTWVGKSVPRREDADILAGRAEYIADIKLPGMLEAAFLRSPFAHARIVSIDVSQALALPGVYDVMVGADIPDYVKPLPLMITYQNHRETPTSPLARDIVRYAGEPVAVVAAINRYVAEDALELIVVKYEELPVVASIDASLAVDGPRLYEGWPDNVVAKVSSEIGDVDAAMASADLVFEERFEIQRCHPAPLETRGFIAQWDFKGENLNVWNGTQIINQCRDFMSEVLDIPASKIRIRSPRLGGGFGAKFHFYVEEPAIVLLAKRVKAPVRWIEDRLEAFSATVHAREQVIDVKLCAMNDGRITGIVADIKGDLGASHHTMSMGPVWLTSVMMTGVYLIPNARSVAKAIVTNKPPSGSYRGWGQPQANFAVERMVDLLAHKLQLDPAAVRRINYVPEARMPYTGLAHTFDSGRYEVLHDRALKTFGYEAWLERQAAAQAQGRRIGIGMSFYAEVSAHGPSRFLNYVGGRQGGYDIARIRMDTTGDVYVYTGLCDMGQGVTNSLAQIAADALGLNPDDVTVMTGDTALNPYTGWGTGASRSITIGGPAVMRAATRLREKILSIARHWLQADPDTLVLANRGVMVRDDPGRYVSFASIGRAAYCQIIELPEDVEPGLEAVGVFDTVQLAWPYGMNLVAVEVDEDTGAVSFLDCMLVHDMGTIVNPMIVDGQLHGGIAQGIAQALYEELRYDENGQLGTGSFADFLMPTASEIPNMRFDHMVTESPLIPGGMKGVGEGGTIGTPAAVVNAIENALRPITNSKLNRTPVTPDRILTAISAGACA