1L8Q	Dna Binding Protein	date	Mar 21, 2002
title	Crystal Structure Of Dna Replication Initiation Factor
authors	J.P.Erzberger, M.M.Pirruccello, J.M.Berger
compound		source
Molecule: Chromosomal Replication Initiator Protein Dnaa Chain: A Fragment: Residues 76-399 Engineered: Yes		Organism_scientific: Aquifex Aeolicus Organism_taxid: 63363 Gene: Dnaa Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Ril Expression_system_vector_type: Plasmid Expression_system_plasmid: Psv272
symmetry	Space Group: I 2 3	R_factor 0.229 R_Free 0.255
crystal cell	length a length b length c angle alpha angle beta angle gamma 155.752 155.752 155.752 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand	ADP, MG, MSE	enzyme
Gene Ontology	Chain Function Process Component A
Primary reference	The structure of bacterial DnaA: implications for general mechanisms underlying DNA replication initiation., Erzberger JP, Pirruccello MM, Berger JM, EMBO J 2002 Sep 16;21(18):4763-73. PMID:12234917

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (62 Kb) [Save to disk] Biological Unit Coordinates (1l8q.pdb1.gz) 56 Kb LPC: Ligand-Protein Contacts for 1L8Q CSU: Contacts of Structural Units for 1L8Q Likely Quarternary Molecular Structure file(s) for 1L8Q Structure Factors (149 Kb) Retrieve 1L8Q in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1L8Q from S2C, [Save to disk] Re-refined 1l8q structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1L8Q 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 1L8Q

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 1L8Q, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1l8qa1, region A:290-399 [Jmol] [rasmolscript] [script source]     - Domain d1l8qa2, region A:77-289 [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: [1l8q_A] [1l8q] SWISS-PROT database: [O66659] Domain organization of [DNAA_AQUAE] by SWISSPFAM Domains found in 1L8Q: [AAA] [Bac_DnaA_C ] by SMART

Other resources with information on 1L8Q

Community annotation for 1L8Q at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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