2QBT	Transferase	date	Jun 18, 2007
title	Structural Studies Reveal The Inactivation Of E. Coli L-Aspa Aminotransferase By (S)-4,5-Amino-Dihydro-2-Thiophenecarbox (Sadta) Via Two Mechanisms (At Ph 8.0)
authors	D.Liu, E.Pozharski, B.Lepore, M.Fu, R.B.Silverman, G.A.Petsko, D.R
compound		source
Molecule: Aspartate Aminotransferase Chain: A Synonym: Transaminase A, Aspat Ec: 2.6.1.1 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Aspc Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Dh5alpha
symmetry	Space Group: C 2 2 21	R_factor 0.149 R_Free 0.190
crystal cell	length a length b length c angle alpha angle beta angle gamma 154.149 84.760 78.951 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.75 Å
ligand	GOL, KST, PMP, PSZ, SO4	enzyme	Transferase E.C.2.6.1.1 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Inactivation of Escherichia coli l-Aspartate Aminotransferase by (S)-4-Amino-4,5-dihydro-2-thiophenecarboxylic Acid Reveals "A Tale of Two Mechanisms"(,)., Liu D, Pozharski E, Lepore BW, Fu M, Silverman RB, Petsko GA, Ringe D, Biochemistry. 2007 Aug 22;. PMID:17713924

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (162 Kb) [Save to disk] Biological Unit Coordinates (2qbt.pdb1.gz) 309 Kb LPC: Ligand-Protein Contacts for 2QBT CSU: Contacts of Structural Units for 2QBT Likely Quarternary Molecular Structure file(s) for 2QBT Structure Factors (776 Kb) Retrieve 2QBT in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2QBT from S2C, [Save to disk] Re-refined 2qbt structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2QBT 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 2QBT

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 2QBT, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2qbt_A] [2qbt] SWISS-PROT database: [P00509] Domain organization of [AAT_ECOLI] by SWISSPFAM

Other resources with information on 2QBT

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

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