2B4F	Hydrolase	date	Sep 23, 2005
title	Structure Of A Cold-Adapted Family 8 Xylanase In Complex Wit Substrate
authors	D.De Vos, T.Collins, S.N.Savvides, G.Feller, J.J.Van Beeumen
compound		source
Molecule: Endo-1,4-Beta-Xylanase Chain: A Ec: 3.2.1.8 Engineered: Yes Mutation: Yes		Organism_scientific: Pseudoalteromonas Haloplanktis Organism_taxid: 228 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.146 R_Free 0.179
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.711 91.099 99.633 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.95 Å
ligand	XYP	enzyme	Hydrolase E.C.3.2.1.8 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Oligosaccharide binding in family 8 glycosidases: crystal structures of active-site mutants of the beta-1,4-xylanase pXyl from Pseudoaltermonas haloplanktis TAH3a in complex with substrate and product., De Vos D, Collins T, Nerinckx W, Savvides SN, Claeyssens M, Gerday C, Feller G, Van Beeumen J, Biochemistry. 2006 Apr 18;45(15):4797-807. PMID:16605248

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (79 Kb) [Save to disk] Biological Unit Coordinates (2b4f.pdb1.gz) 74 Kb LPC: Ligand-Protein Contacts for 2B4F CSU: Contacts of Structural Units for 2B4F Likely Quarternary Molecular Structure file(s) for 2B4F Structure Factors (277 Kb) Retrieve 2B4F in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2B4F from S2C, [Save to disk] Re-refined 2b4f structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2B4F 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 2B4F

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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 2B4F, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2b4f_A] [2b4f] SWISS-PROT database: [Q8RJN8] Domain organization of [Q8RJN8_PSEHA] by SWISSPFAM

Other resources with information on 2B4F

Community annotation for 2B4F at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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