Macromolecule Content

• Total Structure Weight: 5.46 kDa 
• Atom Count: 388 
• Modelled Residue Count: 48 
• Deposited Residue Count: 48 
• Unique protein chains: 1

1JO5

Rhodobacter sphaeroides Light Harvesting 1 beta Subunit in Detergent Micelles

• DOI: 10.2210/pdb1JO5/pdb

• Classification: LUMINESCENT PROTEIN
• Organism(s): Luteovulum sphaeroides
• Mutation(s): No 


• Deposited: 2001-07-26 Released: 2002-02-27 
• Deposition Author(s): Sorgen, P.L., Cahill, S.M., Krueger-Koplin, R.D., Krueger-Koplin, S.T., Schenck, C.G., Girvin, M.E.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 10 
• Selection Criteria: structures with the lowest energy 

Literature

Structure of the Rhodobacter sphaeroides light-harvesting 1 beta subunit in detergent micelles.

Sorgen, P.L., Cahill, S.M., Krueger-Koplin, R.D., Krueger-Koplin, S.T., Schenck, C.C., Girvin, M.E.

(2002) Biochemistry 41: 31-41

• PubMed: 11772000 
• DOI: 10.1021/bi011576j
• Primary Citation of Related Structures:  
  1JO5


• PubMed Abstract: 
  

The light harvesting 1 antenna (LH1) complex from Rhodobacter sphaeroides funnels excitation energy to the photosynthetic reaction center. Our ultimate goal is to build up the structure of LH1 from structures of its individual subunits, much as the antenna can self-assemble from its components in membrane-mimicking detergent micelles. The beta subunit adopts a nativelike conformation in Zwittergent 3:12 micelles as demonstrated by its ability to take the first step of assembly, binding BChl a. Multidimensional NMR spectroscopy shows that the beta subunit folds as a helix((L12-S25))-hinge((G26-W28))-helix((L29-W44)) structure with the helical regions for the 10 lowest-energy structures having backbone rmsds of 0.26 and 0.24 A, respectively. Mn(2+) relaxation data and the protein-detergent NOE pattern show the C-terminal helix embedded in the micelle and the N-terminal helix lying along the detergent micelle surface with a 60 degrees angle between their long axes. (15)N relaxation data for residues L12-W44 are typical of a well-ordered protein with a correlation time of 8.25 +/- 2.1 ns. The presence of the hinge region placing the N-terminal helix along the membrane surface may be the structural feature responsible for the functional differences observed between the LH1 and LH2 beta subunits.

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Organizational Affiliation: 

Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
LIGHT-HARVESTING PROTEIN B-875	A	48	Luteovulum sphaeroides	Mutation(s): 0  Gene Names: pufB
Find proteins for P0C0Y1 (Rhodobacter sphaeroides) Explore P0C0Y1  Go to UniProtKB:  P0C0Y1

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 10 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 1JO5 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-07-26 
• Released Date: 2002-02-27 
Deposition Author(s): Sorgen, P.L., Cahill, S.M., Krueger-Koplin, R.D., Krueger-Koplin, S.T., Schenck, C.G., Girvin, M.E.

Revision History  

• Version 1.0: 2002-02-27
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance