PAO3

Gene

PAO3

Protein

Polyamine oxidase 3

Organism

Arabidopsis thaliana

Length

488 amino acids

Function

Flavoenzyme involved in polyamine back-conversion (PubMed:18583528, PubMed:20532512, PubMed:21081665). Catalyzes the oxidation of the secondary amino group of polyamines, such as spermine, spermidine and their acetyl derivatives (PubMed:18583528, PubMed:20532512, PubMed:21081665). Substrate preference is spermidine > spermine > N(1)-acetylspermidine > N(1)-acetylspermine (PubMed:18583528). Plays an important role in the regulation of polyamine intracellular concentration (Probable). Involved in the production of hydrogen peroxide during pollen tube growth (PubMed:20626657). Hydrogen peroxide triggers the opening of the hyperpolarization-activated calcium permeable channels in pollen, and thus regulates pollen tube growth (PubMed:20626657).

Similarity

Belongs to the flavin monoamine oxidase family.

Mass

54.132 kDa

Sequence

MESGGKTNRQLRKAICVSTDEKMKKKRSPSVIVIGGGMAGISAARTLQDASFQVVVLESRDRIGGRVHTDYSFGFPVDLGASWLHGVCKENPLAAVIGRLGLPLYRTSGDNSVLYDHDLESYALFDKAGNQVSQELVTKVGENFEHILEEICKVRDEQDEDMSIAQAFSIVFKRNPELRLEGLAHNVLQWYLCRMEGWFAADAETISAKCWDQEELLPGGHGLMVRGYRPVINTLSKGLDIRLSHRITKISRRYSGVKVTTEKGDTFVADAAVIALPLGVLKSGMITFEPKLPQWKQEAINDLGVGIENKIILNFDNVFWPNVEFLGVVAETSYGCSYFLNLHKATSHPVLVYMPAGQLARDIEKKSDEAAANFAFSQLQKILPDASSPINYLVSRWGSDINSLGSYSYDIVNKPHDLYERLRVPLDNLFFAGEATSSSYPGSVHGAYSTGVLAAEDCRMRVLERYGELEHEMEEEAPASVPLLISRM

Protein

Polyamine oxidase 3: PAO3

Gene

PAO3

Protein

Polyamine oxidase 3

Organism

Oryza sativa subsp. japonica

Length

484 amino acids

Function

Flavoenzyme involved in polyamine back-conversion (PubMed:21796433). Catalyzes the oxidation of the secondary amino group of polyamines, such as spermine, spermidine and their acetyl derivatives (PubMed:21796433). Substrate preference is spermidine > norspermine > thermospermine > N(1)-acetylspermine > spermine (PubMed:21796433). No activity detected when putrescine is used as substrate (PubMed:21796433). Plays an important role in the regulation of polyamine intracellular concentration (Probable).

Similarity

Belongs to the flavin monoamine oxidase family.

Mass

53.644 kDa

Sequence

MANNSSYGENVRRKSHTPSAIVIGSGFAGIAAANALRNASFEVVLLESRDRIGGRIHTDYSFGFPVDLGASWLHGVCEENPLAPIIGRLGLPLYRTSGDDSVLFDHDLESYALYDTKGHQVPQELVEKIGKVFETILEETGKLREETKEDISIAKAIAIVMERNPHLRQEGIAHDVLQWYLCRMEGWFATDADAISLQGWDQEVLLPGGHGLMVRGYRPVINTLAKGLDIRLGHRVVEIVRHRNRVEVTVSSGKTFVADAAVIAVPLGVLKANTIKFEPRLPEWKEEAIRELSVGVENKIILHFSEVFWPNVEFLGVVSSTTYGCSYFLNLHKATGHPVLVYMPAGRLACDIEKLSDEAAAQFAFSQLKKILPNAAEPIHYLVSHWGSDENTLGSYTFDGVGKPRDLYEKLRIPVDNLFFAGEATSVQYTGTVHGAFSTGLMAAEECRMRVLERFRELDMLEMCHPAMGEQTATVSVPLLISRL

Protein

Polyamine oxidase 3: PAO3