Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
14
pubmed:dateCreated
1987-6-19
pubmed:abstractText
Microcrystalline arrays of Ca2+-transporting ATPase (EC 3.6.1.38) develop in detergent-solubilized sarcoplasmic reticulum upon exposure to 10-20 mM CaCl2 at pH 6.0 for several weeks at 2 degrees C, in a crystallization medium that preserves the ATPase activity for several months. Of 48 detergents tested, optimal crystallization was obtained with Brij 36T, Brij 56, and Brij 96 at a detergent:protein weight ratio of 4:1 and with octaethylene glycol dodecyl ether at a ratio of 2:1. Similar Ca2+-induced crystalline arrays were obtained with the purified or delipidated Ca2+-ATPase of sarcoplasmic reticulum but at lower detergent:protein ratios. The crystals are stabilized by fixation with glutaraldehyde and persist even after the removal of phospholipids by treatment with phospholipases A or C and by extraction with organic solvents. The crystals obtained so far can be used only for electron microscopy, but ongoing experiments suggest that under similar conditions large ordered arrays may develop that are suitable for x-ray diffraction analysis.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
262
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6439-42
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Crystallization of Ca2+-ATPase in detergent-solubilized sarcoplasmic reticulum.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't