4ZHZ: Endonuclease inhibitor

Endonuclease inhibitor bound to influenza strain H1N1 polymerase acidic subunit N-terminal region with expelling one of the metal ions in the active site. Determined by X-ray diffraction at 2.5 Å resolution. Released 13 May 2015.

Method
X-ray diffraction
Resolution
2.5 Å
Organism
Influenza A virus (strain A/Puerto Rico/8/1934 H1N1)
Chains
1
Atoms
1,612
Mol. weight
23.03 kDa
Ligands
4P8, MN
Released
13 May 2015

Explore 4ZHZ in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4ZHZ contains 9 α-helices and 5 β-strands across 1 chain. 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: 9 helices, 5 β-strands

ElementResiduesLengthSheet
α-helix1-88
α-helix11-2212
α-helix32-5019
β-strand76-7831
α-helix84-9815
α-helix100-1034
β-strand109-11131
β-strand116-12381
α-helix127-13812
β-strand144-14961
β-strand154-15631
α-helix157-1593
α-helix165-18420
α-helix188-1936

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Polymerase acidic proteinAprotein191Influenza A virus (strain A/Puerto Rico/8/1934 H1N1)P03433 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>4ZHZ_1 Polymerase acidic protein (chains A)
GPLGSMEDFVRQCFNPMIVELAEKTMKEYGEDLKIETNKFAAICTHLEVCFMYSDASKHR
FEIIEGRDRTMAWTVVNSICNTTGAEKPKFLPDLYDYKENRFIEIGVTRREVHIYYLEKA
NKIKSEKTHIHIFSFTGEEMATKADYTLDEESRARIKTRLFTIRQEMASRGLWDSFRQSE
RGAAELALVPR

Ligands and cofactors

IDNameFormulaCopies
4P85-(2-chlorobenzyl)-2-hydroxy-3-nitrobenzaldehydeC14 H10 Cl N O42
MNManganese (II) ionMn1

Water and common crystallization additives (SO4) are not listed.

Primary citation

Two Distinctive Binding Modes of Endonuclease Inhibitors to the N-Terminal Region of Influenza Virus Polymerase Acidic Subunit. Fudo, S., Yamamoto, N., Nukaga, M. et al. Biochemistry (2016) 55:2646-2660. DOI 10.1021/acs.biochem.5b01087 · PubMed

Other PDB entries of the same protein (UniProt P03433 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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