2DQX	Hydrolase	date	Jun 01, 2006
title	Mutant Beta-Amylase (W55r) From Soy Bean
authors	K.Ishikawa
compound		source
Molecule: Beta-Amylase Chain: A Ec: 3.2.1.2 Engineered: Yes Mutation: Yes		Organism_scientific: Glycine Max Organism_common: Soybean Organism_taxid: 3847 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Jm109 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pbamso
symmetry	Space Group: P 31 2 1	R_factor 0.206 R_Free 0.252
crystal cell	length a length b length c angle alpha angle beta angle gamma 85.042 85.042 145.083 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand		enzyme	Hydrolase E.C.3.2.1.2 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Kinetic and structural analysis of enzyme sliding on a substrate: multiple attack in beta-amylase., Ishikawa K, Nakatani H, Katsuya Y, Fukazawa C, Biochemistry. 2007 Jan 23;46(3):792-8. PMID:17223700

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (87 Kb) [Save to disk] Biological Unit Coordinates (2dqx.pdb1.gz) 83 Kb CSU: Contacts of Structural Units for 2DQX Likely Quarternary Molecular Structure file(s) for 2DQX Structure Factors (261 Kb) Retrieve 2DQX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2DQX from S2C, [Save to disk] Re-refined 2dqx structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2DQX 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 2DQX

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 2DQX, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2dqx] [2dqx_A] SWISS-PROT database: [Q42795] Domain organization of [Q42795_SOYBN] by SWISSPFAM

Other resources with information on 2DQX

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

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