3D23	Hydrolase Hydrolase Inhibitor	date	May 07, 2008
title	Main Protease Of Hcov-Hku1
authors	Q.Zhao, C.Chen, S.Li, Y.Zou
compound		source
Molecule: 3c-Like Proteinase Chain: B, A, C, D Ec: 3.4.22.- Engineered: Yes		Organism_scientific: Human Coronavirus Organism_common: Hcov-Hku1 Organism_taxid: 443239 Strain: Hku1 Gene: Rep Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex4t-1
Molecule: N-[(5-Methylisoxazol-3-Yl)Carbonyl]Alanyl-L-Valyl ((1r,2z)-4-(Benzyloxy)-4-Oxo-1-{[(3r)-2-Oxopyrrolidin-3- Yl]Methyl}But-2-Enyl)-L-Leucinamide; Chain: H, F, E, G Engineered: Yes		Synthetic: Yes Organism_scientific: Synthetic Construct Organism_taxid: 32630
symmetry	Space Group: P 41	R_factor 0.229 R_Free 0.285
crystal cell	length a length b length c angle alpha angle beta angle gamma 91.770 91.770 187.914 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	010, 02J, PJE	enzyme	Hydrolase E.C.3.4.22 BRENDA
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Structure of the main protease from a global infectious human coronavirus, HCoV-HKU1., Zhao Q, Li S, Xue F, Zou Y, Chen C, Bartlam M, Rao Z, J Virol. 2008 Sep;82(17):8647-55. Epub 2008 Jun 18. PMID:18562531

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (197 Kb) [Save to disk] Biological Unit Coordinates (3d23.pdb1.gz) 190 Kb Biological Unit Coordinates (3d23.pdb2.gz) 98 Kb Biological Unit Coordinates (3d23.pdb3.gz) 97 Kb LPC: Ligand-Protein Contacts for 3D23 CSU: Contacts of Structural Units for 3D23 Likely Quarternary Molecular Structure file(s) for 3D23 Structure Factors (709 Kb) Retrieve 3D23 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3D23 from S2C, [Save to disk] Re-refined 3d23 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3D23 in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 3D23

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 3D23, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3d23_B] [3d23_F] [3d23_E] [3d23_C] [3d23_G] [3d23_H] [3d23] [3d23_A] [3d23_D] SWISS-PROT database: [Q0ZJJ1] [P0C6U3] Domain organization of [Q0ZJJ1_CVHK1] [R1A_CVHN1] by SWISSPFAM

Other resources with information on 3D23

Community annotation for 3D23 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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