##gff-version 3 P45951 UniProtKB Chain 1 536 . . . ID=PRO_0000200018;Note=DNA-(apurinic or apyrimidinic site) endonuclease%2C chloroplastic P45951 UniProtKB Domain 97 131 . . . Note=SAP;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00186 P45951 UniProtKB Region 1 278 . . . Note=Highly charged%3B increases the affinity of ARP for DNA P45951 UniProtKB Region 129 168 . . . Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-lite P45951 UniProtKB Region 203 225 . . . Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-lite P45951 UniProtKB Region 279 536 . . . Note=AP endonuclease P45951 UniProtKB Compositional bias 129 151 . . . Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-lite P45951 UniProtKB Compositional bias 152 168 . . . Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-lite P45951 UniProtKB Compositional bias 206 225 . . . Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-lite P45951 UniProtKB Active site 389 389 . . . Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P27695 P45951 UniProtKB Active site 527 527 . . . Note=Proton acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00764 P45951 UniProtKB Binding site 282 282 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00764 P45951 UniProtKB Binding site 313 313 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00764 P45951 UniProtKB Binding site 429 429 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00764 P45951 UniProtKB Binding site 431 431 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00764 P45951 UniProtKB Binding site 526 526 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00764 P45951 UniProtKB Binding site 527 527 . . . Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00764 P45951 UniProtKB Site 431 431 . . . Note=Transition state stabilizer;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P27695 P45951 UniProtKB Site 501 501 . . . Note=Important for catalytic activity;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P27695 P45951 UniProtKB Site 527 527 . . . Note=Interaction with DNA substrate;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P27695 P45951 UniProtKB Mutagenesis 354 354 . . . Note=In arp-1%3B loss of activity. R->W;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:19172180;Dbxref=PMID:19172180