1MW8	Isomerase	date	Sep 27, 2002
title	Crystal Structure Of A Complex Between H365r Mutant Of 67 Kd Terminal Fragment Of E. Coli Dna Topoisomerase I And 5'-Act 3'
authors	K.Perry, A.Mondragon
compound		source
Molecule: 5'-D(Apcptptpcpgpgpgpaptpg)-3' Chain: Y Engineered: Yes		Synthetic: Yes
Molecule: Dna Topoisomerase I Chain: X Fragment: 67 Kda N-Terminal Fragment Synonym: Omega-Protein, Relaxing Enzyme, Untwisting Enzyme, Swivelase; Ec: 5.99.1.2 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Topa Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Dh5alpha Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex-4t
symmetry	Space Group: P 21 21 21	R_factor 0.223 R_Free 0.273
crystal cell	length a length b length c angle alpha angle beta angle gamma 63.392 79.148 141.798 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	SO4, TMP	enzyme	Isomerase E.C.5.99.1.2 BRENDA
related structures	by homologous chain: 1CYY, 1ECL
Gene Ontology	Chain Function Process Component X
Primary reference	Structure of a complex between E. coli DNA topoisomerase I and single-stranded DNA., Perry K, Mondragon A, Structure (Camb) 2003 Nov;11(11):1349-58. PMID:14604525

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (112 Kb) [Save to disk] Biological Unit Coordinates (1mw8.pdb1.gz) 106 Kb LPC: Ligand-Protein Contacts for 1MW8 CSU: Contacts of Structural Units for 1MW8 Likely Quarternary Molecular Structure file(s) for 1MW8 Structure Factors (804 Kb) Retrieve 1MW8 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1MW8 from S2C, [Save to disk] Re-refined 1mw8 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1MW8 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 1MW8

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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 1MW8, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1mw8x_, region X [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: [1mw8_Y] [1mw8_X] [1mw8] SWISS-PROT database: [P06612] Domain organization of [TOP1_ECOLI] by SWISSPFAM Domains found in 1MW8: [TOP1Ac] [TOP1Bc] [TOPRIM ] by SMART

Other resources with information on 1MW8

Community annotation for 1MW8 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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