Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1983-4-21
pubmed:abstractText
The presence and distribution of adenosine triphosphatase (ATPase) activity in isolated matrix vesicles and reconstituted vesicles from fetal calf epiphyseal growth plate cartilage was studied by electron microscopic cytochemical methods to determine whether phosphatase activity would be found concentrated on the inside or the outside of matrix vesicle membranes or on both sides, and whether reconstitution of vesicles from deoxycholate-solubilized substituents would lead to the reassembly of membranes with ATPase incorporated. ATPase activity was observed on both the outer and inner surfaces of the investing membranes of isolated matrix vesicles and reconstituted vesicles. A transmembrane location of ATPase could indicate phosphate transfer across the vesicle membrane. Orthophosphate released by phosphatase activity within the protected microenvironment of the matrix vesicle could combine with membrane- or lipid-bound calcium, known to be present in vesicles, to form the first hydroxyapatite mineral during calcification.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-1554
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
462-70
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Electron microscopic localization of adenosine triphosphate (ATP)-hydrolyzing activity in isolated matrix vesicles and reconstituted vesicles from calf cartilage.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.