1NAH	Isomerase	date	Nov 22, 1995
title	Udp-Galactose 4-Epimerase From Escherichia Coli, Reduced
authors	J.B.Thoden, P.A.Frey, H.M.Holden
compound		source
Molecule: Udp-Galactose 4-Epimerase Chain: A Synonym: Epimerase Ec: 5.1.3.2 Engineered: Yes Other_details: Reduced Form		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3), Plyss Expression_system_plasmid: Pt7e2
symmetry	Space Group: P 32 2 1	R_factor 0.165 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 83.500 83.500 108.400 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.80 Å
ligand	EDO, NA, NAD, PEG, UDP	enzyme	Isomerase E.C.5.1.3.2 BRENDA
related structures	by homologous chain: 1A9Y, 1XEL
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structures of the oxidized and reduced forms of UDP-galactose 4-epimerase isolated from Escherichia coli., Thoden JB, Frey PA, Holden HM, Biochemistry 1996 Feb 27;35(8):2557-66. PMID:8611559

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (69 Kb) [Save to disk] Biological Unit Coordinates (1nah.pdb1.gz) 125 Kb LPC: Ligand-Protein Contacts for 1NAH CSU: Contacts of Structural Units for 1NAH Likely Quarternary Molecular Structure file(s) for 1NAH Retrieve 1NAH in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NAH from S2C, [Save to disk]

View 1NAH 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 1NAH

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1NAH, from MSDmotif at EBI Genome occurence of 1NAH's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1nah__, region [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: [1nah] [1nah_A] SWISS-PROT database: [P09147] Domain organization of [GALE_ECOLI] by SWISSPFAM

Other resources with information on 1NAH

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

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