8HKS: Poly [ADP-ribose] polymerase 2

Mutated human ADP-ribosyltransferase 2 (PARP2) catalytic domain bound to Pamiparib(BGB-290). Determined by X-ray diffraction at 2.8 Å resolution. Released 1 May 2024.

Method
X-ray diffraction
Resolution
2.8 Å
Organism
Homo sapiens
Chains
4
Atoms
11,510
Mol. weight
162.16 kDa
Ligands
DS9
Released
1 May 2024

Explore 8HKS in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8HKS contains 79 α-helices and 72 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 20 helices, 17 β-strands

ElementResiduesLengthSheet
α-helix230-2323
α-helix236-24510
α-helix248-25710
β-strand26011
α-helix267-2693
α-helix272-29019
α-helix296-30813
β-strand31111
α-helix317-3204
α-helix324-34724
α-helix357-3659
β-strand367-37152
α-helix377-38812
β-strand397-409132
α-helix412-4154
β-strand423-42972
α-helix432-4343
α-helix435-4417
α-helix445-4473
α-helix452-4543
β-strand461-46333
β-strand46412
α-helix467-4715
α-helix472-4743
β-strand482-491102
β-strand495-49843
α-helix505-5084
β-strand514-51743
β-strand519-52354
α-helix525-5273
β-strand529-53132
β-strand534-53632
β-strand541-54334
β-strand554-55634
β-strand558-56143
α-helix564-5663
β-strand567-579132
Chain B: 20 helices, 19 β-strands
ElementResiduesLengthSheet
α-helix230-2323
α-helix236-24510
α-helix248-25710
β-strand26015
α-helix267-2693
α-helix272-29019
α-helix296-30813
β-strand31115
α-helix317-3204
α-helix324-34724
α-helix357-3648
β-strand367-37156
α-helix377-38812
β-strand397-409136
α-helix412-4154
β-strand423-42976
α-helix432-4343
α-helix435-4417
α-helix445-4473
α-helix452-4543
β-strand461-46337
β-strand46416
α-helix467-4715
α-helix472-4743
β-strand482-491106
β-strand495-49847
α-helix505-5084
β-strand51018
β-strand51218
β-strand514-51747
β-strand519-52359
α-helix525-5273
β-strand529-53136
β-strand534-53636
β-strand541-54339
β-strand554-55639
β-strand558-56147
α-helix564-5663
β-strand567-579136
Chain C: 20 helices, 17 β-strands
ElementResiduesLengthSheet
α-helix236-24510
α-helix248-25710
β-strand260110
α-helix267-2693
α-helix272-29120
α-helix296-30813
β-strand311110
α-helix317-3204
α-helix324-34724
α-helix350-3512
α-helix357-3659
β-strand367-371511
α-helix377-38812
β-strand397-4091311
α-helix412-4154
β-strand423-430811
α-helix432-4343
α-helix435-4417
α-helix445-4473
α-helix452-4543
β-strand461-463312
β-strand464111
α-helix467-4715
α-helix472-4743
β-strand482-4911011
β-strand495-498412
α-helix505-5084
β-strand514-517412
β-strand519-523513
α-helix525-5273
β-strand529-531311
β-strand534-536311
β-strand541-543313
β-strand554-556313
β-strand558-561412
α-helix564-5663
β-strand567-5791311
Chain D: 19 helices, 19 β-strands
ElementResiduesLengthSheet
β-strand231114
α-helix236-24510
α-helix248-25710
β-strand260115
α-helix267-2693
α-helix272-29019
α-helix296-30813
β-strand311115
α-helix317-3215
α-helix324-34825
β-strand355114
α-helix357-3648
β-strand367-371516
α-helix377-38812
β-strand397-4091316
α-helix412-4154
β-strand423-429716
α-helix432-4343
α-helix435-4417
α-helix445-4473
α-helix452-4543
β-strand461-463317
β-strand464116
α-helix467-4726
β-strand482-4911016
β-strand495-498417
α-helix505-5084
β-strand514-517417
β-strand519-523518
α-helix525-5273
β-strand529-530216
β-strand535-536216
β-strand541-543318
α-helix544-5463
β-strand554-556318
β-strand558-561417
α-helix564-5663
β-strand567-5791316

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Poly [ADP-ribose] polymerase 2A, B, C, Dprotein353Homo sapiensQ9UGN5 (AlphaFold model)
Sequence of entity 1 (A, B, C, D), FASTA
>8HKS_1 Poly [ADP-ribose] polymerase 2 (chains A, B, C, D)
GPESQLDLRVQELIKLICNVQAMEEMMMEMKYNTKKAPLGKLTVAQIKAGYQSLKKIEDC
IRAGQHGRALMEACNEFYTRIPHDFGLRTPPLIRTQKELSEKIQLLEALGDIEIAIKLVK
SERQGLEHPLDQHYRNLHCALRPLDHESYEFKVISQYLQSTHAPTHSDYTMTLLDLFEVE
KDGEKEAFREDLHNRMLLWHGSRMSNWVGILSHGLRIAPPEAPITGYMFGKGIYFADMSS
KSANYCFASRLKNTGLLLLSEVALGQCNELLEANPKAEGLLQGKHSTKGLGKMAPSSAHF
VTLNGSTVPLGPASDTGILNPDGYTLNYNEYIVYNPNQVRMRYLLKVQFNFLQ

Ligands and cofactors

IDNameFormulaCopies
DS9(2R)-14-fluoro-2-methyl-6,9,10,19-tetrazapentacyclo[14.2.1.02,6.08,18.012,17]no…C16 H15 F N4 O4

Water and common crystallization additives (GOL) are not listed.

Primary citation

Engaging an engineered PARP-2 catalytic domain mutant to solve the complex structures harboring approved drugs for structure analyses. Wang, X., Zhou, J., Xu, B. Bioorg Chem (2025) 160:108471-108471. DOI 10.1016/j.bioorg.2025.108471 · PubMed

Other PDB entries of the same protein (UniProt Q9UGN5 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

About this viewer

MolViewer shows 8HKS directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.