1H4H	Glycoside Hydrolase	date	May 11, 2001
title	Oligosaccharide-Binding To Family 11 Xylanases: Both Covalen Intermediate And Mutant-Product Complexes Display 2,5b Conf At The Active-Centre
authors	E.Sabini, K.S.Wilson, S.Danielsen, M.Schulein, G.J.Davies
compound		source
Molecule: Xylanase Chain: A, B, C, D Fragment: Family 11 Xylanase Catalytic Domain Ec: 3.2.1.8 Engineered: Yes Mutation: Yes Other_details: Xylotriose In The Active Site		Organism_scientific: Bacillus Agaradhaerens Organism_taxid: 76935 Expression_system: Bacillus Licheniformis Expression_system_taxid: 1402
symmetry	Space Group: P 1 21 1	R_factor 0.184 R_Free 0.241
crystal cell	length a length b length c angle alpha angle beta angle gamma 74.344 78.895 76.273 90.00 91.93 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	PCA, XYP, XYS	enzyme	Hydrolase E.C.3.2.1.8 BRENDA
related structures	by homologous chain: 1F5J, 1QH6
Gene Ontology	Chain Function Process Component A, D, C, B
Primary reference	Catalysis and specificity in enzymatic glycoside hydrolysis: a 2,5B conformation for the glycosyl-enzyme intermediate revealed by the structure of the Bacillus agaradhaerens family 11 xylanase., Sabini E, Sulzenbacher G, Dauter M, Dauter Z, Jorgensen PL, Schulein M, Dupont C, Davies GJ, Wilson KS, Chem Biol 1999 Jul;6(7):483-92. PMID:10381409

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (147 Kb) [Save to disk] Biological Unit Coordinates (1h4h.pdb1.gz) 38 Kb Biological Unit Coordinates (1h4h.pdb2.gz) 38 Kb Biological Unit Coordinates (1h4h.pdb3.gz) 37 Kb Biological Unit Coordinates (1h4h.pdb4.gz) 37 Kb LPC: Ligand-Protein Contacts for 1H4H CSU: Contacts of Structural Units for 1H4H Likely Quarternary Molecular Structure file(s) for 1H4H Structure Factors (399 Kb) Retrieve 1H4H in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1H4H from S2C, [Save to disk] Re-refined 1h4h structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1H4H in 3D

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Visual 3D analysis of 1H4H

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 1H4H, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1h4ha_, region A [Jmol] [rasmolscript] [script source]     - Domain d1h4hb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1h4hc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1h4hd_, 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: [1h4h_B] [1h4h_D] [1h4h_A] [1h4h_C] [1h4h] SWISS-PROT database: [Q7SIE2] Domain organization of [Q7SIE2_BACAG] by SWISSPFAM

Other resources with information on 1H4H

Community annotation for 1H4H at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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