2AIR	Transferase	date	Jul 30, 2005
title	T-State Active Site Of Aspartate Transcarbamylase:Crystal St The Carbamyl Phosphate And L-Alanosine Ligated Enzyme
authors	J.Huang, W.N.Lipscomb
compound		source
Molecule: Aspartate Carbamoyltransferase Catalytic Chain Chain: A, G Synonym: Aspartate Transcarbamylase, Atcase Ec: 2.1.3.2 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Pyrb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Ek1104 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pek54
Molecule: Aspartate Carbamoyltransferase Regulatory Chain Chain: B, H Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Pyri Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Ek1104 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pek54
symmetry	Space Group: H 3	R_factor 0.239 R_Free 0.273
crystal cell	length a length b length c angle alpha angle beta angle gamma 129.152 129.152 198.097 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	AL0, CP, ZN	enzyme	Transferase E.C.2.1.3.2 BRENDA
Gene Ontology	Chain Function Process Component A, G H, B
Primary reference	T-State Active Site of Aspartate Transcarbamylase: Crystal Structure of the Carbamyl Phosphate and l-Alanosine Ligated Enzyme(,)., Huang J, Lipscomb WN, Biochemistry. 2006 Jan 17;45(2):346-52. PMID:16401065

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (164 Kb) [Save to disk] Biological Unit Coordinates (2air.pdb1.gz) 466 Kb LPC: Ligand-Protein Contacts for 2AIR CSU: Contacts of Structural Units for 2AIR Likely Quarternary Molecular Structure file(s) for 2AIR Structure Factors (541 Kb) Retrieve 2AIR in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2AIR from S2C, [Save to disk] Re-refined 2air structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2AIR 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 2AIR

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 2AIR, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2air_H] [2air_G] [2air_B] [2air_A] [2air] SWISS-PROT database: [P0A786] [P0A7F3] Domain organization of [PYRB_ECOLI] [PYRI_ECOLI] by SWISSPFAM

Other resources with information on 2AIR

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

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Images from IMB Jena Image Library of Biological Macromolecules.

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