##gff-version 3 P54871 UniProtKB Chain 1 462 . . . ID=PRO_0000213754;Note=Hydroxymethylglutaryl-CoA synthase P54871 UniProtKB Active site 92 92 . . . Note=Proton donor/acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU10116 P54871 UniProtKB Active site 124 124 . . . Note=Acyl-thioester intermediate;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU10116 P54871 UniProtKB Active site 257 257 . . . Note=Proton donor/acceptor;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU10116 P54871 UniProtKB Cross-link 408 408 . . . Note=Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO);Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:25187565;Dbxref=PMID:25187565 P54871 UniProtKB Mutagenesis 291 291 . . . Note=Reduced sumoylation%3B when associated with R-314%2C R-408 and R-420. K->R;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:25187565;Dbxref=PMID:25187565 P54871 UniProtKB Mutagenesis 314 314 . . . Note=Reduced sumoylation%3B when associated with R-291%2C R-408 and R-420. K->R;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:25187565;Dbxref=PMID:25187565 P54871 UniProtKB Mutagenesis 408 408 . . . Note=Reduced sumoylation. K->R;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:25187565;Dbxref=PMID:25187565 P54871 UniProtKB Mutagenesis 420 420 . . . Note=Reduced sumoylation%3B when associated with R-291%2C R-314 and R-408. K->R;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:25187565;Dbxref=PMID:25187565