1I1X	Hydrolase	date	Feb 04, 2001
title	1.11 A Atomic Resolution Structure Of A Thermostable Xylanas Thermoascus Aurantiacus
authors	R.Natesh, S.Ramakumar, M.A.Viswamitra
compound		source
Molecule: Endo-1,4-Beta-Xylanase Chain: A Synonym: Xylanase, 1,4-Beta-D-Xylan Xylanohydrolase Ec: 3.2.1.8		Organism_scientific: Thermoascus Aurantiacus Organism_taxid: 5087 Strain: Strain Isolated From Local Indian Soil
symmetry	Space Group: P 1 21 1	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 41.520 68.090 51.440 90.00 113.56 90.00
method	X-Ray Diffraction	resolution	1.11 Å
ligand	PCA	enzyme	Hydrolase E.C.3.2.1.8 BRENDA
related structures	by homologous chain: 1I1W, 1K6A
Gene Ontology	Chain Function Process Component A
Primary reference	Thermostable xylanase from Thermoascus aurantiacus at ultrahigh resolution (0.89 A) at 100 K and atomic resolution (1.11 A) at 293 K refined anisotropically to small-molecule accuracy., Natesh R, Manikandan K, Bhanumoorthy P, Viswamitra MA, Ramakumar S, Acta Crystallogr D Biol Crystallogr 2003 Jan 1;59(Pt 1):105-17. PMID:12499546

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (146 Kb) [Save to disk] Biological Unit Coordinates (1i1x.pdb1.gz) 141 Kb LPC: Ligand-Protein Contacts for 1I1X CSU: Contacts of Structural Units for 1I1X Likely Quarternary Molecular Structure file(s) for 1I1X Structure Factors (624 Kb) Retrieve 1I1X in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1I1X from S2C, [Save to disk] Re-refined 1i1x structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1I1X 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 1I1X

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1I1X from the CEP Server. Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1I1X, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1i1xa_, 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: [1i1x_A] [1i1x] SWISS-PROT database: [P23360] Domain organization of [XYNA_THEAU] by SWISSPFAM Domain found in 1I1X: [Glyco_10 ] by SMART

Other resources with information on 1I1X

Community annotation for 1I1X at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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