title: STM of isolated complexes of R-Phycoerythrin: direct observation of the gamma-subunit at the centre of the complex.
abstract: Scanning tunnelling microscopy was used to study the topography of single complexes of the photosynthetic protein R-Phycoerythrin and to determine the location of the gamma-subunit. This study has resolved an ambiguity in the positioning of the gamma-subunit from X-ray crystal structure analysis which arose from the symmetry-related averaging of the X-ray diffraction pattern which led to a loss of resolution.
authors.affiliation: School of Physics A28, University of Sydney, NSW, Australia.
authors.forename: Christopher S
authors.initials: CS
authors.lastname: Barton
authors.forename: Philip B
authors.initials: PB
authors.lastname: Lukins
mesh_terms: D018360:Crystallography, X-Ray; D016252:Microscopy, Scanning Tunneling; D010799:Phycoerythrin / Q000737:chemistry*; D020836:Protein Structure, Quaternary; D021122:Protein Subunits / Q000737:chemistry
chemical_list: D021122:Protein Subunits; D010799:Phycoerythrin