1RGN	Photosynthesis	date	Nov 12, 2003
title	Structure Of The Reaction Centre From Rhodobacter Sphaeroide Carotenoidless Strain R-26.1 Reconstituted With Spheroidene
authors	A.W.Roszak, H.A.Frank, K.Mckendrick, I.A.Mitchell, R.J.Cogdell, N
compound		source
Molecule: Reaction Center Protein L Chain Chain: L Synonym: Photosynthetic Reaction Center L Subunit		Organism_scientific: Rhodobacter Sphaeroides Organism_taxid: 1063 Strain: R-26.1 Other_details: Strain R-26.1 Of Rhodobacter Sphaeroides Bac A Partial Revertant Of The R-26 Chemical Mutant Of The Wild Strain 2.4.1. While R-26 Has No Lh2 Antenna And No Caroteno R-26.1 Has Altered Lh2 Antenna And No Carotenoid. Reaction From R-26.1 Strain Is Therefore Identical With The Wild-Typ 2.4.1 Except For The Missing Carotenoid.In This Entry R-26. Been Reconstituted With Carotenoid Spheroidene.;
Molecule: Reaction Center Protein M Chain Chain: M Synonym: Photosynthetic Reaction Center M Subunit		Organism_scientific: Rhodobacter Sphaeroides Organism_taxid: 1063 Strain: R-26.1
Molecule: Reaction Center Protein H Chain Chain: H Synonym: Photosynthetic Reaction Center H Subunit		Organism_scientific: Rhodobacter Sphaeroides Organism_taxid: 1063 Strain: R-26.1
symmetry	Space Group: P 31 2 1	R_factor 0.189 R_Free 0.232
crystal cell	length a length b length c angle alpha angle beta angle gamma 139.817 139.817 184.047 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	BCL, BPH, FE, LDA, PO4, SPO, U10	enzyme
related structures	by homologous chain: 1JGW, 1RVJ
Gene Ontology	Chain Function Process Component H electron transporter, transf... L M
Primary reference	Protein regulation of carotenoid binding; gatekeeper and locking amino acid residues in reaction centers of Rhodobacter sphaeroides., Roszak AW, McKendrick K, Gardiner AT, Mitchell IA, Isaacs NW, Cogdell RJ, Hashimoto H, Frank HA, Structure (Camb) 2004 May;12(5):765-73. PMID:15130469

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (156 Kb) [Save to disk] Biological Unit Coordinates (1rgn.pdb1.gz) 145 Kb LPC: Ligand-Protein Contacts for 1RGN CSU: Contacts of Structural Units for 1RGN Likely Quarternary Molecular Structure file(s) for 1RGN Structure Factors (345 Kb) Retrieve 1RGN in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1RGN from S2C, [Save to disk] Re-refined 1rgn structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1RGN 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 1RGN

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 1RGN, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1rgnh2, region H:11-35 [Jmol] [rasmolscript] [script source]     - Domain d1rgnh1, region H:36-250 [Jmol] [rasmolscript] [script source]     - Domain d1rgnl_, region L [Jmol] [rasmolscript] [script source]     - Domain d1rgnm_, region M [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: [1rgn_M] [1rgn] [1rgn_H] [1rgn_L] SWISS-PROT database: [P0C0Y7] [P0C0Y8] [P0C0Y9] Belongs to the photosynthetic reaction center (prc) family according to TCDB. Domain organization of [RCEH_RHOSH] [RCEL_RHOSH] [RCEM_RHOSH] by SWISSPFAM

Other resources with information on 1RGN

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

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