1EK6	Isomerase	date	Mar 06, 2000
title	Structure Of Human Udp-Galactose 4-Epimerase Complexed With Udp-Glucose
authors	J.B.Thoden, T.M.Wohlers, J.L.Fridovich-Keil, H.M.Holden
compound		source
Molecule: Udp-Galactose 4-Epimerase Chain: A, B Ec: 5.1.3.2 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Tissue: Foreskin Expression_system: Saccharomyces Cerevisiae Expression_system_common: Baker'S Yeast Expression_system_taxid: 4932
symmetry	Space Group: P 21 21 21	R_factor 0.168 R_Free 0.198
crystal cell	length a length b length c angle alpha angle beta angle gamma 74.700 86.900 95.300 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.50 Å
ligand	MG, NAI, TMA, UPG	enzyme	Isomerase E.C.5.1.3.2 BRENDA
note	1EK6 is a representative structure
related structures	by homologous chain: 1I3K
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystallographic evidence for Tyr 157 functioning as the active site base in human UDP-galactose 4-epimerase., Thoden JB, Wohlers TM, Fridovich-Keil JL, Holden HM, Biochemistry 2000 May 16;39(19):5691-701. PMID:10801319

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (134 Kb) [Save to disk] Biological Unit Coordinates (1ek6.pdb1.gz) 128 Kb LPC: Ligand-Protein Contacts for 1EK6 CSU: Contacts of Structural Units for 1EK6 Likely Quarternary Molecular Structure file(s) for 1EK6 Structure Factors (906 Kb) Retrieve 1EK6 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1EK6 from S2C, [Save to disk] Re-refined 1ek6 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1EK6 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 1EK6

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1EK6 1EK6A 1EK6B from the CEP Server. Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1EK6, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ek6a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1ek6b_, 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: [1ek6_A] [1ek6_B] [1ek6] SWISS-PROT database: [Q14376] Domain organization of [GALE_HUMAN] by SWISSPFAM

Other resources with information on 1EK6

Community annotation for 1EK6 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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