Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1994-7-29
pubmed:abstractText
Uptake of acetylcholine was studied in a synaptic vesicle fraction isolated from rat brain. Hyposmotically treated P3 vesicles took up acetylcholine (ACh) in the presence of MgATP, and the uptake was inhibited by low temperature, ammonium ions, the protonophore carbonyl cyanide p-(trifluoromethoxy)phenylhydrazone (FCCP) and bafilomycin A1, a specific inhibitor of the vacuolar H(+)-ATPase. Uptake was also inhibited by drugs that bind allosterically to the ACh transporter, namely vesamicol (IC50 value of 170 nM) and 4-aminobenzovesamicol (IC50 value of 25 nM). KM and Vmax values for ACh active transport were estimated to be 5 mM and 4 nmol min-1 mg-1 of cholinergic vesciles, respectively. Active transport of ACh by synaptic vesicles partially purified from brain is mediated by a vesamicol-sensitive transporter and is dependent on a proton gradient generated by the vesicular H(+)-ATPase.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
773-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Acetylcholine active transport by rat brain synaptic vesicles.
pubmed:affiliation
Department of Chemistry, University of California, Santa Barbara 93106.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.