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pao

Gene
PAO
Protein
Pheophorbide a oxygenase, chloroplastic
Organism
Arabidopsis thaliana
Length
537 amino acids
Function
Catalyzes the key reaction of chlorophyll catabolism, porphyrin macrocycle cleavage of pheophorbide a (pheide a) to a primary fluorescent catabolite (pFCC). Works in a two-step reaction with red chlorophyll catabolite reductase (RCCR). Creates the intermediate RCC through the opening of the porphyrin macrocycle by the introduction of one atom of molecular oxygen at the alpha-methine bridge. Seems to be specific for pheide a. Belongs to the chlorophyll catabolic enzymes (CCEs).
Mass
60.756 kDa
Sequence
MSVVLLSSTSATITKSQSKKIPFLSPTTKFPLKVSISPSRSKLFHNPLRVAAPPSVPTSDSTEEKRIEEEYGGDKEEEGSEFKWRDHWYPVSLVEDLDPNVPTPFQLLGRDLVLWFDRNDQKWAAFDDLCPHRLAPLSEGRLDENGHLQCSYHGWSFGGCGSCTRIPQAATSGPEARAVKSPRACAIKFPTMVSQGLLFVWPDENGWDRANSIEPPRLPDDFDKPEFSTVTIQRDLFYGYDTLMENVSDPSHIDFAHHKVTGRRDRAKPLPFKVESSGPWGFQGANDDSPRITAKFVAPCYSMNKIELDAKLPIVGNQKWVIWICSFNIPMAPGKTRSIVCSARNFFQFSVPGPAWWQVVPRWYEHWTSNLVYDGDMIVLQGQEKVFLAKSMESPDYDVNKQYTKLTFTPTQADRFVLAFRNWLRRHGKSQPEWFGSTPSNQPLPSTVLTKRQMLDRFDQHTQVCSSCKGAYNSFQILKKFLVGATVFWAATAGVPSDVQIRLVLAGLSLISAASAYALHEQEKNFVFRDYVHSEIE

Gene
pao
Protein
Pseudooxynicotine oxidase
Organism
Pseudomonas sp
Length
497 amino acids
Function
Catalyzes the deamination of pseudooxynicotine to 3-succinoylsemialdehyde-pyridine in the nicotine degradation pathway.
Similarity
Belongs to the flavin monoamine oxidase family.
Mass
54.101 kDa
Sequence
MANDKGDISKDGVSRRKFLGGAVIGAAAAAGVGSQILSLSATAQGADKERVGPLQSNVDYDAVVIGGGFAGVTAARELSRSGLKTLVLEGRSRLGGRTFTSKLDGEKVELGGTWVHWTQPNVWTEVMHYGLEIEETVGLASPETVIWVTDNQVKRAPAAEAFEIFGAACTEYYKEAHNIYPRPFDPFFAKKALQEMDGLSASEYLNKLSLTREQKDMMDSWLSGNGHNYPETIAYSEIMRWFALSNFNMPTMFDSIARYKIKSGTVSLLEAMVAESDMEVQLSTPVLKVKQDSHRVLITTEEGTIAASAVVMAVPLNTMGDVEYSPRLSDAKSEIASQGHAGKGVKGYIRIKQDVGNVMTYAPARNDVTPFTSVFTDHVGENGTLLIAFSADPKLVDINDSKAVEKALHPLLPGVEVTSSYGYDWNLDPFSKGTWCTYRPGQTTRYLTELQKREGRLFFAGSDMANGWRGFIDGAIESGREVGYQVASYLKGKNSNA