Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
2005-8-16
pubmed:abstractText
Recombinant P2X2 receptor was observed by atomic force microscope in the aqueous phase. The P2X2 receptor was expressed in an insect cell line, and recombinant proteins were prepared under native conditions. The membrane fractions were extracted, and histidine-tagged receptor protein was purified from the fractions by column chromatography. When the purified protein fraction was diluted with water and served for atomic force microscopy, dispersed particles of about 3 nm in height were observed. In the presence of 1 mM ATP, the assembly-like images of the particles were obtained. More densely assembled images of the particles were achieved when the protein was dissolved in a Tris buffer containing 1 mM ATP. Under this condition, imaging of the surface of the particles exhibited a circular structure with a diameter of about 10 nm having a pore-like structure. These results suggest that atomic force microscopy provides structural information about P2X2 receptor in aqueous phase.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
518
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
107-10
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Purification and aqueous phase atomic force microscopic observation of recombinant P2X2 receptor.
pubmed:affiliation
Division of Pharmacology, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya, Tokyo 158-8501, Japan. nakazawa@nihs.go.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't