1B1Y	Hydrolase	date	Nov 25, 1998
title	Sevenfold Mutant Of Barley Beta-Amylase
authors	B.Mikami, H.J.Yoon, N.Yoshigi
compound		source
Molecule: Protein (Beta-Amylase) Chain: A Ec: 3.2.1.2 Engineered: Yes Mutation: Yes		Organism_scientific: Hordeum Vulgare Organism_taxid: 4513 Variant: Cv. Haruna Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_variant: Jm 109 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pb927
symmetry	Space Group: P 43 21 2	R_factor 0.187 R_Free 0.256
crystal cell	length a length b length c angle alpha angle beta angle gamma 72.110 72.110 250.510 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	BGC, GLC	enzyme	Hydrolase E.C.3.2.1.2 BRENDA
related structures	by homologous chain: 1BYA
Gene Ontology	Chain Function Process Component A
Primary reference	The crystal structure of the sevenfold mutant of barley beta-amylase with increased thermostability at 2.5 A resolution., Mikami B, Yoon HJ, Yoshigi N, J Mol Biol 1999 Jan 22;285(3):1235-43. PMID:9918723

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (88 Kb) [Save to disk] Biological Unit Coordinates (1b1y.pdb1.gz) 82 Kb LPC: Ligand-Protein Contacts for 1B1Y CSU: Contacts of Structural Units for 1B1Y Likely Quarternary Molecular Structure file(s) for 1B1Y Retrieve 1B1Y in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B1Y from S2C, [Save to disk]

View 1B1Y 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 1B1Y

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1B1Y, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1b1ya_, 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: [1b1y_A] [1b1y] SWISS-PROT database: [P16098] Domain organization of [AMYB_HORVU] by SWISSPFAM

Other resources with information on 1B1Y

Community annotation for 1B1Y at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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