1TUG	Hydrolase Hydrolase Regulator	date	Jun 24, 2004
title	Aspartate Transcarbamoylase Catalytic Chain Mutant E50a Comp Phosphonoacetamide, Malonate, And Cytidine-5-Prime-Triphosp
authors	K.Stieglitz, B.Stec, D.P.Baker, E.R.Kantrowitz
compound		source
Molecule: Aspartate Carbamoyltransferase Catalytic Chain Chain: A, C Synonym: Aspartate Transcarbamylase, Atcase Ec: 2.1.3.2 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Pyrb, B4245, C5345, Z5856, Ecs5222, Sf4245, S4507 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Ek1104 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pek91
Molecule: Aspartate Carbamoyltransferase Regulatory Chain Chain: B, D Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Pyri, B4244, C5344, Z5855, Ecs5221 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Ek1104 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pek91
symmetry	Space Group: P 3 2 1	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 122.290 122.290 142.410 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	CTP, MLI, PCT, ZN	enzyme	Transferase E.C.2.1.3.2 BRENDA
related structures	by homologous chain: 1D09, 1ZA1
Gene Ontology	Chain Function Process Component A, C D, B
Primary reference	Monitoring the Transition from the T to the R State in E.coli Aspartate Transcarbamoylase by X-ray Crystallography: Crystal Structures of the E50A Mutant Enzyme in Four Distinct Allosteric States., Stieglitz K, Stec B, Baker DP, Kantrowitz ER, J Mol Biol 2004 Aug 13;341(3):853-68. PMID:15288791

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (171 Kb) [Save to disk] Biological Unit Coordinates (1tug.pdb1.gz) 475 Kb LPC: Ligand-Protein Contacts for 1TUG CSU: Contacts of Structural Units for 1TUG Likely Quarternary Molecular Structure file(s) for 1TUG Structure Factors (511 Kb) Retrieve 1TUG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1TUG from S2C, [Save to disk] Re-refined 1tug structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1TUG 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 1TUG

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 1TUG, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1tuga1, region A:1-150,A:151-310 [Jmol] [rasmolscript] [script source]     - Domain d1tugb1, region B:1-100 [Jmol] [rasmolscript] [script source]     - Domain d1tugb2, region B:101-153 [Jmol] [rasmolscript] [script source]     - Domain d1tugc1, region C:1-150,C:151-310 [Jmol] [rasmolscript] [script source]     - Domain d1tugd1, region D:1-100 [Jmol] [rasmolscript] [script source]     - Domain d1tugd2, region D:101-153 [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: [1tug_D] [1tug_C] [1tug_B] [1tug] [1tug_A] SWISS-PROT database: [P0A786] [P0A7F3] Domain organization of [PYRB_ECOLI] [PYRI_ECOLI] by SWISSPFAM

Other resources with information on 1TUG

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

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