Purine repressor: Difference between revisions
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<StructureSection load='1wet' size=' | <StructureSection load='1wet' size='450' side='right' caption='Structure of E. coli purine processor complex with DNA (green) and guanine (PDB entry [[1wet]])' scene=''> | ||
== Function == | == Function == | ||
'''Purine repressor''' (PurR) is a member of the lac repressor family. PurP binds DNA via a highly conserved helix-turn-helix at the N terminal (DBD). PurP contains a nucleotide co-repressor binding domain as well (CBD). PurP binds to a 16-bp operator sequence and co-regulates genes which are involved in the biosynthesis of purine and pyrimidine nucleotides<ref>PMID:1971621</ref>. | '''Purine repressor''' (PurR) is a member of the lac repressor family. PurP binds DNA via a highly conserved helix-turn-helix at the N terminal (DBD). PurP contains a nucleotide co-repressor binding domain as well (CBD). PurP binds to a 16-bp operator sequence and co-regulates genes which are involved in the biosynthesis of purine and pyrimidine nucleotides<ref>PMID:1971621</ref>. | ||