SMTL ID : 1tl8.1

Human DNA topoisomerase I (70 kDa) in complex with the indenoisoquinoline AI-III-52 and covalent complex with a 22 base pair DNA duplex

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.10 Å

Oligo State

monomer

Ligands

1 x AI3: 2,3-DIMETHOXY-12H-[1,3]DIOXOLO[5,6]INDENO[1,2-C]ISOQUINOLIN-6-IUM(Non-covalent)

AI3.1: 9 residues within 4Å: Chain A: T.10 Chain B: C.1 Chain C: G.12, A.13 Chain D: E.183, R.191, K.252, T.545, N.549 2 PLIP interactions: 2 interactions with chain D Hydrogen bonds: D:R.191, D:N.549

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ioanoviciu, A. et al., Synthesis and Mechanism of Action Studies of a Series of Norindenoisoquinoline Topoisomerase I Poisons Reveal an Inhibitor with a Flipped Orientation in the Ternary DNA-Enzyme-Inhibitor Complex As Determined by X-ray Crystallographic Analysis. J.Med.Chem. (2005)

Release Date

2005-06-21

Peptides

DNA topoisomerase I: D

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

D
A

DNA topoisomerase I

Related Entries With Identical Sequence