1EC0	Hydrolase Hydrolase Inhibitor	date	Jan 25, 2000
title	Hiv-1 Protease In Complex With The Inhibitor Bea403
authors	T.Unge
compound		source
Molecule: Hiv-1 Protease Chain: A, B Fragment: Fragment 69-167 Ec: 3.4.23.16 Engineered: Yes		Organism_scientific: Human Immunodeficiency Virus 1 Organism_taxid: 11676 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pet11c
symmetry	Space Group: P 21 21 2	R_factor 0.191 R_Free 0.222
crystal cell	length a length b length c angle alpha angle beta angle gamma 58.130 86.050 46.440 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.79 Å
ligand	BED BindingDB	enzyme	Hydrolase E.C.3.4.23.16 BRENDA
related structures	by homologous chain: 1FEJ, 1HVC
Gene Ontology	Chain Function Process Component A, B
Primary reference	Symmetric fluoro-substituted diol-based HIV protease inhibitors. Ortho-fluorinated and meta-fluorinated P1/P1'-benzyloxy side groups significantly improve the antiviral activity and preserve binding efficacy., Lindberg J, Pyring D, Lowgren S, Rosenquist A, Zuccarello G, Kvarnstrom I, Zhang H, Vrang L, Classon B, Hallberg A, Samuelsson B, Unge T, Eur J Biochem 2004 Nov;271(22):4594-602. PMID:15560801

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk] Biological Unit Coordinates (1ec0.pdb1.gz) 34 Kb LPC: Ligand-Protein Contacts for 1EC0 CSU: Contacts of Structural Units for 1EC0 Likely Quarternary Molecular Structure file(s) for 1EC0 Structure Factors (153 Kb) Retrieve 1EC0 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1EC0 from S2C, [Save to disk] Re-refined 1ec0 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1EC0 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 1EC0

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 1EC0, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ec0a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1ec0b_, 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: [1ec0_B] [1ec0] [1ec0_A] SWISS-PROT database: [P03366] Domain organization of [POL_HV1B1] by SWISSPFAM

Other resources with information on 1EC0

Community annotation for 1EC0 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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