1IOS	Hydrolase	date	Mar 28, 2001
title	Stabilization Of Hen Egg White Lysozyme By A Cavity-Filling
authors	T.Ohmura, T.Ueda, K.Ootsuka, M.Saito, T.Imoto
compound		source
Molecule: Lysozyme C Chain: A Ec: 3.2.1.17 Engineered: Yes Mutation: Yes		Organism_scientific: Gallus Gallus Organism_common: Chicken Organism_taxid: 9031 Expression_system: Saccharomyces Cerevisiae Expression_system_common: Baker'S Yeast Expression_system_taxid: 4932 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pam82
symmetry	Space Group: P 43 21 2	R_factor 0.166 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 78.860 78.860 38.020 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.76 Å
ligand		enzyme	Hydrolase E.C.3.2.1.17 BRENDA
related structures	by homologous chain: 1HEW, 1UIB
Gene Ontology	Chain Function Process Component A
Primary reference	Stabilization of hen egg white lysozyme by a cavity-filling mutation., Ohmura T, Ueda T, Ootsuka K, Saito M, Imoto T, Protein Sci 2001 Feb;10(2):313-20. PMID:11266617

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (25 Kb) [Save to disk] Biological Unit Coordinates (1ios.pdb1.gz) 22 Kb CSU: Contacts of Structural Units for 1IOS Likely Quarternary Molecular Structure file(s) for 1IOS Structure Factors (74 Kb) Retrieve 1IOS in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IOS from S2C, [Save to disk] Re-refined 1ios structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1IOS 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 1IOS

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 1IOS, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1iosa_, region A [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: [1ios_A] [1ios] SWISS-PROT database: [P00698] Domain organization of [LYSC_CHICK] by SWISSPFAM Domain found in 1IOS: [LYZ1 ] by SMART

Other resources with information on 1IOS

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

Movements, Movies and Images

Domain movements in 1IOS from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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