1GCY	Hydrolase	date	Aug 14, 2000
title	High Resolution Crystal Structure Of Maltotetraose-Forming E
authors	Y.Mezaki, Y.Katsuya, M.Kubota, Y.Matsuura
compound		source
Molecule: Glucan 1,4-Alpha-Maltotetrahydrolase Chain: A Ec: 3.2.1.60 Engineered: Yes		Organism_scientific: Pseudomonas Stutzeri Organism_taxid: 316 Strain: Mo-19 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Hb101 Expression_system_vector: Puc18
symmetry	Space Group: P 21 21 21	R_factor 0.259 R_Free 0.304
crystal cell	length a length b length c angle alpha angle beta angle gamma 69.420 171.660 46.350 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand	CA	enzyme	Hydrolase E.C.3.2.1.60 BRENDA
related structures	by homologous chain: 1JDC
Gene Ontology	Chain Function Process Component A
Primary reference	Crystallization and structural analysis of intact maltotetraose-forming exo-amylase from Pseudomonas stutzeri., Mezaki Y, Katsuya Y, Kubota M, Matsuura Y, Biosci Biotechnol Biochem 2001 Jan;65(1):222-5. PMID:11272837

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (75 Kb) [Save to disk] Biological Unit Coordinates (1gcy.pdb1.gz) 70 Kb LPC: Ligand-Protein Contacts for 1GCY CSU: Contacts of Structural Units for 1GCY Likely Quarternary Molecular Structure file(s) for 1GCY Structure Factors (535 Kb) Retrieve 1GCY in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1GCY from S2C, [Save to disk] Re-refined 1gcy structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1GCY 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 1GCY

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 1GCY, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1gcya2, region A:1-357 [Jmol] [rasmolscript] [script source]     - Domain d1gcya1, region A:358-418 [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: [1gcy] [1gcy_A] SWISS-PROT database: [P13507] Domain organization of [AMT4_PSEST] by SWISSPFAM Domains found in 1GCY: [Aamy] [CBM_2 ] by SMART

Other resources with information on 1GCY

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

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