1QK2	Hydrolase	date	Jul 09, 1999
title	Wild Type Cel6a With A Non-Hydrolysable Cellotetraose
authors	J.Y.Zou, T.A.Jones
compound		source
Molecule: Cellobiohydrolase Cel6a (Formerly Called Cbh II) Chain: A, B Fragment: Catalytic Domain, Residues 85-447 Synonym: Cel6a Ec: 3.2.1.91 Engineered: Yes		Organism_scientific: Trichoderma Reesei Organism_taxid: 51453 Gene: Cbh2 Expression_system: Trichoderma Reesei Expression_system_taxid: 51453
symmetry	Space Group: P 1 21 1	R_factor 0.189 R_Free 0.222
crystal cell	length a length b length c angle alpha angle beta angle gamma 48.830 74.700 91.840 90.00 104.12 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	GLC, MAN, MGL, NAG, SGC	enzyme	Hydrolase E.C.3.2.1.91 BRENDA
related structures	by homologous chain: 1BVW, 1CB2
Gene Ontology	Chain Function Process Component A, B
Primary reference	Three-dimensional structure of cellobiohydrolase II from Trichoderma reesei., Rouvinen J, Bergfors T, Teeri T, Knowles JK, Jones TA, Science. 1990 Jul 27;249(4967):380-6. PMID:2377893

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (131 Kb) [Save to disk] Biological Unit Coordinates (1qk2.pdb1.gz) 63 Kb Biological Unit Coordinates (1qk2.pdb2.gz) 64 Kb LPC: Ligand-Protein Contacts for 1QK2 CSU: Contacts of Structural Units for 1QK2 Likely Quarternary Molecular Structure file(s) for 1QK2 Structure Factors (311 Kb) Retrieve 1QK2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QK2 from S2C, [Save to disk] Re-refined 1qk2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1QK2 in 3D

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Visual 3D analysis of 1QK2

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 1QK2, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qk2a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1qk2b_, region B [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: [1qk2_A] [1qk2] [1qk2_B] SWISS-PROT database: [P07987] Domain organization of [GUX2_TRIRE] by SWISSPFAM

Other resources with information on 1QK2

Community annotation for 1QK2 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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