1B4A	Repressor	date	Dec 18, 1998
title	Structure Of The Arginine Repressor From Bacillus Stearother
authors	J.Ni, V.Sakanyan, D.Charlier, N.Glansdorff, G.D.Van Duyne
compound		source
Molecule: Arginine Repressor Chain: A, B, C, D, E, F		Organism_scientific: Geobacillus Stearothermophilus Organism_taxid: 1422
symmetry	Space Group: C 2 2 21	R_factor 0.224 R_Free 0.279
crystal cell	length a length b length c angle alpha angle beta angle gamma 72.800 121.900 227.400 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
related structures	by homologous chain: 1B4B, 1F9N
Gene Ontology	Chain Function Process Component F, A, D, C, E, B
Primary reference	Structure of the arginine repressor from Bacillus stearothermophilus., Ni J, Sakanyan V, Charlier D, Glansdorff N, Van Duyne GD, Nat Struct Biol 1999 May;6(5):427-32. PMID:10331868

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (152 Kb) [Save to disk] Biological Unit Coordinates (1b4a.pdb1.gz) 147 Kb CSU: Contacts of Structural Units for 1B4A Likely Quarternary Molecular Structure file(s) for 1B4A Retrieve 1B4A in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B4A from S2C, [Save to disk]

View 1B4A 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 1B4A

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1B4A, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1b4aa1, region A:4-78 [Jmol] [rasmolscript] [script source]     - Domain d1b4aa2, region A:79-149 [Jmol] [rasmolscript] [script source]     - Domain d1b4ab1, region B:4-78 [Jmol] [rasmolscript] [script source]     - Domain d1b4ab2, region B:79-149 [Jmol] [rasmolscript] [script source]     - Domain d1b4ac1, region C:4-78 [Jmol] [rasmolscript] [script source]     - Domain d1b4ac2, region C:79-149 [Jmol] [rasmolscript] [script source]     - Domain d1b4ad1, region D:4-78 [Jmol] [rasmolscript] [script source]     - Domain d1b4ad2, region D:79-149 [Jmol] [rasmolscript] [script source]     - Domain d1b4ae1, region E:4-78 [Jmol] [rasmolscript] [script source]     - Domain d1b4ae2, region E:79-149 [Jmol] [rasmolscript] [script source]     - Domain d1b4af1, region F:4-78 [Jmol] [rasmolscript] [script source]     - Domain d1b4af2, region F:79-149 [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: [1b4a_B] [1b4a] [1b4a_A] [1b4a_D] [1b4a_E] [1b4a_F] [1b4a_C] SWISS-PROT database: [O31408] Domain organization of [ARGR_BACST] by SWISSPFAM

Other resources with information on 1B4A

Community annotation for 1B4A at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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