1CZA	Transferase	date	Sep 01, 1999
title	Mutant Monomer Of Recombinant Human Hexokinase Type I Complexed With Glucose, Glucose-6-Phosphate, And Adp
authors	A.E.Aleshin, X.Liu, C.Kirby, G.P.Bourenkov, H.D.Bartunik, H.J.Fromm, R.B.Honzatko
compound		source
Molecule: Hexokinase Type I Chain: N Ec: 2.7.1.1 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Brain Cell: Neuron Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pet11a
symmetry	Space Group: P 21 21 2	R_factor 0.211 R_Free 0.258
crystal cell	length a length b length c angle alpha angle beta angle gamma 145.660 145.800 58.130 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	ADP, G6P, GLC	enzyme	Transferase E.C.2.7.1.1 BRENDA
related structures	by homologous chain: 1QHA
Gene Ontology	Chain Function Process Component N nucleotide binding catalytic activity glucokinase activity hexokinase activity protein binding ATP binding fructokinase activity kinase activity transferase activity phosphotransferase activity,... mannokinase activity cellular glucose homeostasis... carbohydrate metabolic proce... glycolysis metabolic process hexose transport glucose transport phosphorylation hexose metabolic process small molecule metabolic pro... glucose 6-phosphate metaboli... transmembrane transport nucleus nucleolus mitochondrion mitochondrial outer membrane... cytosol membrane membrane raft
Primary reference	Crystal structures of mutant monomeric hexokinase I reveal multiple ADP binding sites and conformational changes relevant to allosteric regulation., Aleshin AE, Kirby C, Liu X, Bourenkov GP, Bartunik HD, Fromm HJ, Honzatko RB, J Mol Biol 2000 Mar 3;296(4):1001-15. PMID:10686099

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (166 Kb) [Save to disk] Biological Unit Coordinates (1cza.pdb1.gz) 161 Kb LPC: Ligand-Protein Contacts for 1CZA CSU: Contacts of Structural Units for 1CZA Likely Quarternary Molecular Structure file(s) for 1CZA Structure Factors (862 Kb) Retrieve 1CZA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1CZA from S2C, [Save to disk] Re-refined 1cza structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1CZA 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1CZA

Cartoon representation from PDB Cartoon 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 Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1CZA, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1czan1, region N:16-222 [Jmol] [rasmolscript] [script source]     - Domain d1czan2, region N:223-465 [Jmol] [rasmolscript] [script source]     - Domain d1czan3, region N:466-670 [Jmol] [rasmolscript] [script source]     - Domain d1czan4, region N:671-913 [Jmol] [rasmolscript] [script source] Fold representative 1cza from FSSP and Dali (Families of Structurally Similar Proteins) 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: [1cza_N] SWISS-PROT database: [P19367] Domain organization of [HXK1_HUMAN] by SWISSPFAM Alignments of the sequence of 1CZA with the sequences similar proteins can be viewed for 1CZA's classification [HXK1_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [HXK1_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1CZA

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

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