2ESQ	Ligase	date	Oct 26, 2005
title	Human Ubiquitin-Conjugating Enzyme (E2) Ubch5b Mutant Ser94g
authors	E.Ozkan, H.Yu, J.Deisenhofer
compound		source
Molecule: Ubiquitin-Conjugating Enzyme E2 D2 Chain: A Synonym: Ubiquitin-Protein Ligase D2, Ubiquitin Carrier Pro Ubiquitin-Conjugating Enzyme E2-17 Kda 2, E217, Kb 2; Ec: 6.3.2.19 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ube2d2, Ubc4, Ubch5b Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Phis-Parallel
symmetry	Space Group: P 21 21 21	R_factor 0.173 R_Free 0.205
crystal cell	length a length b length c angle alpha angle beta angle gamma 47.514 49.295 62.617 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.44 Å
ligand		enzyme	Ligase E.C.6.3.2.19 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Mechanistic insight into the allosteric activation of a ubiquitin-conjugating enzyme by RING-type ubiquitin ligases., Ozkan E, Yu H, Deisenhofer J, Proc Natl Acad Sci U S A. 2005 Dec 27;102(52):18890-5. Epub 2005 Dec 19. PMID:16365295

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (35 Kb) [Save to disk] Biological Unit Coordinates (2esq.pdb1.gz) 28 Kb CSU: Contacts of Structural Units for 2ESQ Likely Quarternary Molecular Structure file(s) for 2ESQ Structure Factors (204 Kb) Retrieve 2ESQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2ESQ from S2C, [Save to disk] Re-refined 2esq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2ESQ 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 2ESQ

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 2ESQ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2esq_A] [2esq] SWISS-PROT database: [P62837] Belongs to the peroxisomal protein importer (ppi) family according to TCDB. Domain organization of [UB2D2_HUMAN] by SWISSPFAM Domain found in 2ESQ: [UBCc ] by SMART

Other resources with information on 2ESQ

Community annotation for 2ESQ at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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Images from IMB Jena Image Library of Biological Macromolecules.

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