1A04	Signal Transduction Protein	date	Dec 08, 1997
title	The Structure Of The Nitratenitrite Response Regulator Prot In The Monoclinic C2 Crystal Form
authors	I.Baikalov, I.Schroder, M.Kaczor-Grzeskowiak, D.Cascio, R.P.Guns R.E.Dickerson
compound		source
Molecule: Nitratenitrite Response Regulator Protein Narl Chain: A, B Fragment: Residues 2 - 216 Of The Wild Type Narl Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Strain: Jm109 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: T7 Promoter Expression_system_plasmid: Phxl-1
symmetry	Space Group: C 1 2 1	R_factor 0.211 R_Free 0.267
crystal cell	length a length b length c angle alpha angle beta angle gamma 156.306 38.527 106.892 90.00 131.91 90.00
method	X-Ray Diffraction	resolution	2.20 Å
related structures	by homologous chain: 1JE8, 1RNL
Gene Ontology	Chain Function Process Component A, B bacterial-type RNA polymeras...
Primary reference	NarL dimerization? Suggestive evidence from a new crystal form., Baikalov I, Schroder I, Kaczor-Grzeskowiak M, Cascio D, Gunsalus RP, Dickerson RE, Biochemistry 1998 Mar 17;37(11):3665-76. PMID:9521685

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (74 Kb) [Save to disk] Biological Unit Coordinates (1a04.pdb1.gz) 36 Kb Biological Unit Coordinates (1a04.pdb2.gz) 36 Kb CSU: Contacts of Structural Units for 1A04 Likely Quarternary Molecular Structure file(s) for 1A04 Structure Factors (176 Kb) Retrieve 1A04 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1A04 from S2C, [Save to disk] Re-refined 1a04 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1A04 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 1A04

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 1A04, from MSDmotif at EBI Genome occurence of 1A04's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1a04a1, region A:150-216 [Jmol] [rasmolscript] [script source]     - Domain d1a04a2, region A:5-142 [Jmol] [rasmolscript] [script source]     - Domain d1a04b1, region B:150-216 [Jmol] [rasmolscript] [script source]     - Domain d1a04b2, region B:5-142 [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: [1a04_B] [1a04_A] [1a04] SWISS-PROT database: [P0AF28] Domain organization of [NARL_ECOLI] by SWISSPFAM Domains found in 1A04: [HTH_LUXR] [REC ] by SMART

Other resources with information on 1A04

Community annotation for 1A04 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1A04 from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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