3R91	Chaperone Chaperone Inhibitor	date	Mar 24, 2011
title	Macrocyclic Lactams As Potent Hsp90 Inhibitors With Excellen Exposure And Extended Biomarker Activity.
authors	C.W.Zapf, J.D.Bloom, J.L.Mcbean, R.G.Dushin, T.Nittoli, M.Otteng, C.Ingalls, J.M.Golas, H.Liu, J.Lucas, F.Boschelli, E.Vogan, Y.Hu,
compound		source
Molecule: Heat Shock Protein Hsp 90-Alpha Chain: A Fragment: N-Terminal Domain, Unp Residues 10-236 Synonym: Heat Shock 86 Kda, Hsp 86, Hsp86, Renal Carcinoma Ny-Ren-38; Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hsp90a, Hsp90aa1, Hspc1, Hspca Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet28a
symmetry	Space Group: I 2 2 2	R_factor 0.186 R_Free 0.199
crystal cell	length a length b length c angle alpha angle beta angle gamma 67.042 90.250 97.797 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.58 Å
ligand	06H	enzyme
Primary reference	Macrocyclic lactams as potent Hsp90 inhibitors with excellent tumor exposure and extended biomarker activity., Zapf CW, Bloom JD, McBean JL, Dushin RG, Nittoli T, Otteng M, Ingalls C, Golas JM, Liu H, Lucas J, Boschelli F, Hu Y, Vogan E, Levin JI, Bioorg Med Chem Lett. 2011 Apr 5. PMID:21515049

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (45 Kb) [Save to disk] Biological Unit Coordinates (3r91.pdb1.gz) 40 Kb LPC: Ligand-Protein Contacts for 3R91 CSU: Contacts of Structural Units for 3R91 Structure Factors (654 Kb) Retrieve 3R91 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3R91 from S2C, [Save to disk] Re-refined 3r91 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3R91 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 3R91

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 3R91, from MSDmotif at EBI Fold representative 3r91 from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3r91_A] SWISS-PROT database: Domain organization of by SWISSPFAM Alignments of the sequence of 3R91 with the sequences similar proteins can be viewed for 3R91's classification at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification at ProtoMap. Click on the Cluster number.

Other resources with information on 3R91

Community annotation for 3R91 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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