1RAI	Transferase	date	Aug 14, 1992
title	Crystal Structure Of Ctp-Ligated T State Aspartate Transcarb At 2.5 Angstroms Resolution: Implications For Atcase Mutant Mechanism Of Negative Cooperativity
authors	R.P.Kosman, J.E.Gouaux, W.N.Lipscomb
compound		source
Molecule: Aspartate Carbamoyltransferase Catalytic Chain Chain: A, C Synonym: Aspartate Transcarbamylase, Atcase Ec: 2.1.3.2 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K12 Gene: Pyrb, B4245, Jw4204
Molecule: Aspartate Carbamoyltransferase Regulatory Chain Chain: B, D Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K12 Gene: Pyri, B4244, Jw4203
symmetry	Space Group: P 3 2 1	R_factor 0.182 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 122.130 122.130 142.510 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	CTP, ZN	enzyme	Transferase E.C.2.1.3.2 BRENDA
related structures	by homologous chain: 1RAF, 1RAG, 8ATC
Gene Ontology	Chain Function Process Component A, C D, B
Primary reference	Crystal structure of CTP-ligated T state aspartate transcarbamoylase at 2.5 A resolution: implications for ATCase mutants and the mechanism of negative cooperativity., Kosman RP, Gouaux JE, Lipscomb WN, Proteins. 1993 Feb;15(2):147-76. PMID:8441751

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (152 Kb) [Save to disk] Biological Unit Coordinates (1rai.pdb1.gz) 429 Kb LPC: Ligand-Protein Contacts for 1RAI CSU: Contacts of Structural Units for 1RAI Likely Quarternary Molecular Structure file(s) for 1RAI Retrieve 1RAI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1RAI from S2C, [Save to disk]

View 1RAI 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 1RAI

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1RAI, from MSDmotif at EBI Genome occurence of 1RAI's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1raia1, region A:1-150 [Jmol] [rasmolscript] [script source]     - Domain d1raia2, region A:151-310 [Jmol] [rasmolscript] [script source]     - Domain d1raib1, region B:1-100 [Jmol] [rasmolscript] [script source]     - Domain d1raib2, region B:101-153 [Jmol] [rasmolscript] [script source]     - Domain d1raic1, region C:1-150 [Jmol] [rasmolscript] [script source]     - Domain d1raic2, region C:151-310 [Jmol] [rasmolscript] [script source]     - Domain d1raid2, region D:101-153 [Jmol] [rasmolscript] [script source]     - Domain d1raid1, region D:8-100 [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: [1rai_B] [1rai] [1rai_A] [1rai_D] [1rai_C] SWISS-PROT database: [P0A786] [P0A7F3] Domain organization of [PYRB_ECOLI] [PYRI_ECOLI] by SWISSPFAM

Other resources with information on 1RAI

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

Movements, Movies and Images

Domain movements in 1RAI from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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