1S3V	Oxidoreductase	date	Jan 14, 2004
title	Structure Determination Of Tetrahydroquinazoline Antifolates In Complex With Human And Pneumocystis Carinii Dihydrofolate Reductase: Correlations Of Enzyme Selectivity And Stereochemistry
authors	V.Cody, J.R.Luft, W.Pangborn, A.Gangjee, S.F.Queener
compound		source
Molecule: Dihydrofolate Reductase Chain: A Ec: 1.5.1.3 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Dhfr Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: H 3	R_factor 0.173 R_Free 0.192
crystal cell	length a length b length c angle alpha angle beta angle gamma 106.970 106.970 43.856 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.80 Å
ligand	SO4, TQD	enzyme	Oxidoreductase E.C.1.5.1.3 BRENDA
related structures	by homologous chain: 1MVT, 8DFR
Gene Ontology	Chain Function Process Component A
Primary reference	Structure determination of tetrahydroquinazoline antifolates in complex with human and Pneumocystis carinii dihydrofolate reductase: correlations between enzyme selectivity and stereochemistry., Cody V, Luft JR, Pangborn W, Gangjee A, Queener SF, Acta Crystallogr D Biol Crystallogr 2004 Apr;60(Pt 4):646-55. Epub 2004, Mar 23. PMID:15039552

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (39 Kb) [Save to disk] Biological Unit Coordinates (1s3v.pdb1.gz) 35 Kb LPC: Ligand-Protein Contacts for 1S3V CSU: Contacts of Structural Units for 1S3V Likely Quarternary Molecular Structure file(s) for 1S3V Structure Factors (126 Kb) Retrieve 1S3V in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1S3V from S2C, [Save to disk] Re-refined 1s3v structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Visual 3D analysis of 1S3V

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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 1S3V, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1s3va_, 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: [1s3v] [1s3v_A] SWISS-PROT database: [P00374] Domain organization of [DYR_HUMAN] by SWISSPFAM

Other resources with information on 1S3V

Community annotation for 1S3V at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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