1IIQ	Hydrolase Hydrolase Inhibitor	date	Apr 24, 2001
title	Crystal Structure Of Hiv-1 Protease Complexed With A Hydroxy Peptidomimetic Inhibitor
authors	J.Dohnalek, J.Hasek, J.Duskova, H.Petrokova, M.Hradilek, M.Soucek J.Konvalinka, J.Brynda, J.Sedlacek, M.Fabry
compound		source
Molecule: Protease Retropepsin Chain: A, B Fragment: Hiv-1 Protease Synonym: Hiv-1 Protease Ec: 3.4.23.16 Engineered: Yes		Organism_scientific: Human Immunodeficiency Virus 1 Organism_taxid: 11676 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 2	R_factor 0.164 R_Free 0.204
crystal cell	length a length b length c angle alpha angle beta angle gamma 58.110 86.340 46.110 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.83 Å
ligand	0ZR, GOL	enzyme	Hydrolase E.C.3.4.23.16 BRENDA
related structures	by homologous chain: 1B6J, 1D4J
Gene Ontology	Chain Function Process Component A, B
Primary reference	Hydroxyethylamine isostere of an HIV-1 protease inhibitor prefers its amine to the hydroxy group in binding to catalytic aspartates. A synchrotron study of HIV-1 protease in complex with a peptidomimetic inhibitor., Dohnalek J, Hasek J, Duskova J, Petrokova H, Hradilek M, Soucek M, Konvalinka J, Brynda J, Sedlacek J, Fabry M, J Med Chem 2002 Mar 28;45(7):1432-8. PMID:11906284

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (45 Kb) [Save to disk] Biological Unit Coordinates (1iiq.pdb1.gz) 40 Kb LPC: Ligand-Protein Contacts for 1IIQ CSU: Contacts of Structural Units for 1IIQ Likely Quarternary Molecular Structure file(s) for 1IIQ Structure Factors (153 Kb) Retrieve 1IIQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IIQ from S2C, [Save to disk] Re-refined 1iiq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1IIQ 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 1IIQ

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 1IIQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1iiqa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1iiqb_, region B [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1iiq_A] [1iiq_I] [1iiq] [1iiq_B] SWISS-PROT database: [P03367] Domain organization of [POL_HV1BR] by SWISSPFAM

Other resources with information on 1IIQ

Community annotation for 1IIQ at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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