3IA5	Oxidoreductase	date	Jul 13, 2009
title	Moritella Profunda Dihydrofolate Reductase (Dhfr)
authors	S.Hay, R.M.Evans, C.Levy, X.Wang, E.J.Loveridge, D.Leys, R.K.Allem N.S.Scrutton
compound		source
Molecule: Dihydrofolate Reductase Chain: A, B Ec: 1.5.1.3 Engineered: Yes		Organism_scientific: Moritella Profunda Organism_taxid: 111291 Gene: Dyra Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 41	R_factor 0.189 R_Free 0.246
crystal cell	length a length b length c angle alpha angle beta angle gamma 94.728 94.728 45.912 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	PO4	enzyme	Oxidoreductase E.C.1.5.1.3 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Are the Catalytic Properties of Enzymes from Piezophilic Organisms Pressure Adapted?, Hay S, Evans RM, Levy C, Loveridge EJ, Wang X, Leys D, Allemann RK, Scrutton NS, Chembiochem. 2009 Aug 13. PMID:19681091

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (59 Kb) [Save to disk] Biological Unit Coordinates (3ia5.pdb1.gz) 27 Kb Biological Unit Coordinates (3ia5.pdb2.gz) 28 Kb LPC: Ligand-Protein Contacts for 3IA5 CSU: Contacts of Structural Units for 3IA5 Likely Quarternary Molecular Structure file(s) for 3IA5 Structure Factors (136 Kb) Retrieve 3IA5 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3IA5 from S2C, [Save to disk] Re-refined 3ia5 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3IA5 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 3IA5

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 3IA5, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3ia5] [3ia5_B] [3ia5_A] SWISS-PROT database: [Q70YQ6] Domain organization of [Q70YQ6_MORPR] by SWISSPFAM

Other resources with information on 3IA5

Community annotation for 3IA5 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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