1EZU	Hydrolase Inhibitor	date	May 11, 2000
title	Ecotin Y69f, D70p Bound To D102n Trypsin
authors	S.A.Gillmor, T.Takeuchi, S.Q.Yang, C.S.Craik, R.J.Fletterick
compound		source
Molecule: Ecotin Chain: A, B Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Ptactacecotin
Molecule: Trypsin II, Anionic Chain: C, D Ec: 3.4.21.4 Engineered: Yes Mutation: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Tissue: Pancreas Expression_system: Saccharomyces Cerevisiae Expression_system_common: Baker'S Yeast Expression_system_taxid: 4932 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pytd102n Trypsin
symmetry	Space Group: P 1 21 1	R_factor 0.218 R_Free 0.265
crystal cell	length a length b length c angle alpha angle beta angle gamma 62.920 82.749 81.752 90.00 97.24 90.00
method	X-Ray Diffraction	resolution	2.40 Å
ligand	CA	enzyme	Hydrolase E.C.3.4.21.4 BRENDA
related structures	by homologous chain: 1ID5, 1J14, 1K1L, 1SLV
Gene Ontology	Chain Function Process Component A, B serine-type endopeptidase in... D, C
Primary reference	Compromise and accommodation in ecotin, a dimeric macromolecular inhibitor of serine proteases., Gillmor SA, Takeuchi T, Yang SQ, Craik CS, Fletterick RJ, J Mol Biol 2000 Jun 16;299(4):993-1003. PMID:10843853

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (119 Kb) [Save to disk] Biological Unit Coordinates (1ezu.pdb1.gz) 111 Kb LPC: Ligand-Protein Contacts for 1EZU CSU: Contacts of Structural Units for 1EZU Likely Quarternary Molecular Structure file(s) for 1EZU Structure Factors (192 Kb) Retrieve 1EZU in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1EZU from S2C, [Save to disk] Re-refined 1ezu structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1EZU 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 1EZU

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 1EZU, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ezua_, region A [Jmol] [rasmolscript] [script source]     - Domain d1ezub_, region B [Jmol] [rasmolscript] [script source]     - Domain d1ezuc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1ezud_, region D [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: [1ezu] [1ezu_D] [1ezu_C] [1ezu_B] [1ezu_A] SWISS-PROT database: [P23827] [P00763] Domain organization of [ECOT_ECOLI] [TRY2_RAT] by SWISSPFAM Domain found in 1EZU: [Tryp_SPc ] by SMART

Other resources with information on 1EZU

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

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