2C2T	Oxidoreductase	date	Sep 30, 2005
title	Human Dihydrofolate Reductase Complexed With Nadph And 2,4-D ((7,8-Dicarbaundecaboran-7-Yl)Methyl)-6-Methylpyrimidine, A Boron Containing, Nonclassical Antifolate
authors	A.K.W.Leung, R.C.Reynolds, J.M.Riordan, D.W.Borhani
compound		source
Molecule: Dihydrofolate Reductase Chain: A, B Ec: 1.5.1.3 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector: Pet11a Expression_system_plasmid: Pdfr
symmetry	Space Group: C 2 2 21	R_factor 0.158 R_Free 0.213
crystal cell	length a length b length c angle alpha angle beta angle gamma 87.628 94.354 96.032 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.50 Å
ligand	39B, 39E, GOL, NDP	enzyme	Oxidoreductase E.C.1.5.1.3 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Novel boron-containing, nonclassical antifolates: synthesis and preliminary biological and structural evaluation., Reynolds RC, Campbell SR, Fairchild RG, Kisliuk RL, Micca PL, Queener SF, Riordan JM, Sedwick WD, Waud WR, Leung AK, Dixon RW, Suling WJ, Borhani DW, J Med Chem. 2007 Jul 12;50(14):3283-9. Epub 2007 Jun 15. PMID:17569517

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (162 Kb) [Save to disk] Biological Unit Coordinates (2c2t.pdb1.gz) 78 Kb Biological Unit Coordinates (2c2t.pdb2.gz) 77 Kb LPC: Ligand-Protein Contacts for 2C2T CSU: Contacts of Structural Units for 2C2T Likely Quarternary Molecular Structure file(s) for 2C2T Structure Factors (967 Kb) Retrieve 2C2T in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2C2T from S2C, [Save to disk] Re-refined 2c2t structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2C2T 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 2C2T

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2C2T, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2c2t] [2c2t_B] [2c2t_A] SWISS-PROT database: [P00374] Domain organization of [DYR_HUMAN] by SWISSPFAM

Other resources with information on 2C2T

Community annotation for 2C2T at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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