2QO3	Transferase	date	Jul 19, 2007
title	Crystal Structure Of [Ks3][At3] Didomain From Module 3 Of 6- Deoxyerthronolide B Synthase
authors	C.Khosla, E.D.Cane, Y.Tang, Y.A.Chen, C.Y.Kim
compound		source
Molecule: Eryaii Erythromycin Polyketide Synthase Modules 3 Chain: A, B Fragment: Ketosynthase-Acyltransferase Didomain Of Didomain Synonym: 6 Deoxyerythronolide B Synthase Ec: 2.3.1.94 Engineered: Yes		Organism_scientific: Saccharopolyspora Erythraea Organism_taxid: 1836 Gene: Eryaii Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Payc09
symmetry	Space Group: P 1 21 1	R_factor 0.214 R_Free 0.268
crystal cell	length a length b length c angle alpha angle beta angle gamma 75.203 139.005 102.342 90.00 106.14 90.00
method	X-Ray Diffraction	resolution	2.59 Å
ligand	ACT, CER, CL	enzyme	Transferase E.C.2.3.1.94 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Structural and mechanistic analysis of protein interactions in module 3 of the 6-deoxyerythronolide B synthase., Tang Y, Chen AY, Kim CY, Cane DE, Khosla C, Chem Biol. 2007 Aug;14(8):931-43. PMID:17719492

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (271 Kb) [Save to disk] Biological Unit Coordinates (2qo3.pdb1.gz) 264 Kb LPC: Ligand-Protein Contacts for 2QO3 CSU: Contacts of Structural Units for 2QO3 Likely Quarternary Molecular Structure file(s) for 2QO3 Structure Factors (977 Kb) Retrieve 2QO3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2QO3 from S2C, [Save to disk] Re-refined 2qo3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2QO3 in 3D

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Visual 3D analysis of 2QO3

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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 2QO3, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2qo3] [2qo3_B] [2qo3_A] SWISS-PROT database: [A4F7P0] [Q03132] Domain organization of [A4F7P0_SACEN] [ERYA2_SACER] by SWISSPFAM Domains found in 2QO3: [PKS_AT] [PKS_KS ] by SMART

Other resources with information on 2QO3

Community annotation for 2QO3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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