FEATURES

FAMILY

DESCRIPTION

Also known as TOP2A_HUMAN, TOP2A, TOP2. Key decatenating enzyme that alters DNA topology by binding to two double-stranded DNA molecules, generating a double-stranded break in one of the strands, passing the intact strand through the broken strand, and religating the broken strand (PubMed:17567603, PubMed:18790802, PubMed:22013166, PubMed:22323612). May play a role in regulating the period length of ARNTL/BMAL1 transcriptional oscillation (By similarity). Homodimer. Interacts with COPS5. Interacts with RECQL5; this stimulates DNA decatenation. Interacts with SETMAR; stimulates the topoisomerase activity (PubMed:18790802, PubMed:20457750). Interacts with DHX9; this interaction occurs in a E2 enzyme UBE2I- and RNA-dependent manner, negatively regulates DHX9-mediated double-stranded DNA and RNA duplex helicase activity and stimulates TOP2A-mediated supercoiled DNA relaxation activity (PubMed:12711669). Interacts with HNRNPU (via C-terminus); this interaction protects the topoisomerase TOP2A from degradation and positively regulates the relaxation of supercoiled DNA in a RNA-dependent manner (By similarity). Interacts with MCM3AP isoform GANP (PubMed:23652018). Interacts with ERCC6 (PubMed:26030138). Interacts with PLSCR1 (PubMed:17567603).

Also known as TOP2A_HUMAN, TOP2A, TOP2. Key decatenating enzyme that alters DNA topology by binding to two double-stranded DNA molecules, generating a double-stranded break in one of the strands, ...

EXTERNAL LINKS

TOP2A

DNA topoisomerase 2-alpha

TOP2A

Molecular Synopsis