2Q54	Hydrolase	date	May 31, 2007
title	Crystal Structure Of Kb73 Bound To Hiv-1 Protease
authors	C.A.Schiffer, M.N.L.Nalam
compound		source
Molecule: Protease Chain: A, B Engineered: Yes Mutation: Yes		Organism_scientific: Human Immunodeficiency Virus 1 Organism_taxid: 11676 Strain: Sf2 Gene: Pol Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Tap56 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pxc35
symmetry	Space Group: P 21 21 21	R_factor 0.174 R_Free 0.224
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.759 58.167 61.436 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.85 Å
ligand	ACT, MU1, PO4 BindingDB	enzyme
Gene Ontology	Chain Function Process Component A, B
Primary reference	Design and Synthesis of HIV-1 Protease Inhibitors Incorporating Oxazolidinones as P2/P2' Ligands in Pseudosymmetric Dipeptide Isosteres., Reddy GS, Ali A, Nalam MN, Anjum SG, Cao H, Nathans RS, Schiffer CA, Rana TM, J Med Chem. 2007 Sep 6;50(18):4316-28. Epub 2007 Aug 16. PMID:17696512

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (42 Kb) [Save to disk] Biological Unit Coordinates (2q54.pdb1.gz) 35 Kb LPC: Ligand-Protein Contacts for 2Q54 CSU: Contacts of Structural Units for 2Q54 Likely Quarternary Molecular Structure file(s) for 2Q54 Structure Factors (227 Kb) Retrieve 2Q54 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2Q54 from S2C, [Save to disk] Re-refined 2q54 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2Q54 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 2Q54

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2Q54, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2q54_B] [2q54] [2q54_A] SWISS-PROT database: [O38732] Domain organization of [O38732_9HIV1] by SWISSPFAM

Other resources with information on 2Q54

Community annotation for 2Q54 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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