1QCQ	Ligase	date	May 10, 1999
title	Ubiquitin Conjugating Enzyme
authors	W.J.Cook, L.C.Jeffrey, Y.Xu, V.Chau
compound		source
Molecule: Protein (Ubiquitin Conjugating Enzyme) Chain: A Ec: 6.3.2.19		Organism_scientific: Saccharomyces Cerevisiae Organism_common: Baker'S Yeast Organism_taxid: 4932
symmetry	Space Group: P 41 21 2	R_factor 0.240 R_Free 0.296
crystal cell	length a length b length c angle alpha angle beta angle gamma 66.900 66.900 91.800 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand		enzyme	Ligase E.C.6.3.2.19 BRENDA
note	1QCQ supersedes 2UCE
related structures	by homologous chain: 1UR6, 1X23
Gene Ontology	Chain Function Process Component A
Primary reference	Tertiary structures of class I ubiquitin-conjugating enzymes are highly conserved: crystal structure of yeast Ubc4., Cook WJ, Jeffrey LC, Xu Y, Chau V, Biochemistry 1993 Dec 21;32(50):13809-17. PMID:8268156

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (27 Kb) [Save to disk] Biological Unit Coordinates (1qcq.pdb1.gz) 23 Kb CSU: Contacts of Structural Units for 1QCQ Likely Quarternary Molecular Structure file(s) for 1QCQ Retrieve 1QCQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QCQ from S2C, [Save to disk]

View 1QCQ 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 1QCQ

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1QCQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qcqa_, 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: [1qcq_A] [1qcq] SWISS-PROT database: [P15731] Domain organization of [UBC4_YEAST] by SWISSPFAM Domain found in 1QCQ: [UBCc ] by SMART

Other resources with information on 1QCQ

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

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

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