1D4I	Hydrolase	date	Oct 04, 1999
title	Hiv-1 Protease In Complex With The Inhibitor Bea425
authors	T.Unge
compound		source
Molecule: Hiv-1 Protease Chain: A, B Ec: 3.4.23.16 Engineered: Yes		Organism_scientific: Human Immunodeficiency Virus Organism_taxid: 12721 Strain: Bh10 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 0.228
crystal cell	length a length b length c angle alpha angle beta angle gamma 58.619 86.315 46.686 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.81 Å
ligand	BEG BindingDB	enzyme	Hydrolase E.C.3.4.23.16 BRENDA
related structures	by homologous chain: 1D4H, 1EBW
Gene Ontology	Chain Function Process Component A, B
Primary reference	Optimization of P1-P3 groups in symmetric and asymmetric HIV-1 protease inhibitors., Andersson HO, Fridborg K, Lowgren S, Alterman M, Muhlman A, Bjorsne M, Garg N, Kvarnstrom I, Schaal W, Classon B, Karlen A, Danielsson UH, Ahlsen G, Nillroth U, Vrang L, Oberg B, Samuelsson B, Hallberg A, Unge T, Eur J Biochem 2003 Apr;270(8):1746-58. PMID:12694187

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk] Biological Unit Coordinates (1d4i.pdb1.gz) 34 Kb LPC: Ligand-Protein Contacts for 1D4I CSU: Contacts of Structural Units for 1D4I Likely Quarternary Molecular Structure file(s) for 1D4I Structure Factors (156 Kb) Retrieve 1D4I in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1D4I from S2C, [Save to disk] Re-refined 1d4i structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1D4I 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 1D4I

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 1D4I, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1d4ia_, region A [Jmol] [rasmolscript] [script source]     - Domain d1d4ib_, 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: [1d4i_A] [1d4i_B] [1d4i] SWISS-PROT database: [P03366] Domain organization of [POL_HV1B1] by SWISSPFAM

Other resources with information on 1D4I

Community annotation for 1D4I at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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