1CIB	Ligase	date	Mar 31, 1999
title	Structure Of Adenylosuccinate Synthetase From E. Coli Comple Gdp, Imp, Hadacidin, And No3
authors	Z.Hou, M.Cashel, H.J.Fromm, R.B.Honzatko
compound		source
Molecule: Adenylosuccinate Synthetase Chain: A Synonym: Ampsase Ec: 6.3.4.4 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K-12 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Pur A H1238 Expression_system_vector_type: Plasmid Expression_system_plasmid: Ptrc99a
symmetry	Space Group: P 32 2 1	R_factor 0.170 R_Free 0.240
crystal cell	length a length b length c angle alpha angle beta angle gamma 80.600 80.600 158.500 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	GDP, HDA, IMP, MG, NO3	enzyme	Ligase E.C.6.3.4.4 BRENDA
related structures	by homologous chain: 1HOO, 1QF4
Gene Ontology	Chain Function Process Component A
Primary reference	Effectors of the stringent response target the active site of Escherichia coli adenylosuccinate synthetase., Hou Z, Cashel M, Fromm HJ, Honzatko RB, J Biol Chem 1999 Jun 18;274(25):17505-10. PMID:10364182

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (80 Kb) [Save to disk] Biological Unit Coordinates (1cib.pdb1.gz) 76 Kb Biological Unit Coordinates (1cib.pdb2.gz) 149 Kb LPC: Ligand-Protein Contacts for 1CIB CSU: Contacts of Structural Units for 1CIB Likely Quarternary Molecular Structure file(s) for 1CIB Retrieve 1CIB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1CIB from S2C, [Save to disk]

View 1CIB 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 1CIB

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1CIB, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ciba_, region A [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: [1cib] [1cib_A] SWISS-PROT database: [P0A7D4] Domain organization of [PURA_ECOLI] by SWISSPFAM Domain found in 1CIB: [Adenylsucc_synt ] by SMART

Other resources with information on 1CIB

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

Movements, Movies and Images

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

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