Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1990-10-18
pubmed:abstractText
The mitochondrial sheath of mammalian spermatozoa is adherent to an underlying organized network of electron-dense material termed the submitochondrial reticulum (SMR). In this manuscript we further characterize the substructure of the SMR and the outer mitochondrial membrane and provide new information on their structural interaction. The SMR resists solubilization by detergent and once partially released from the midpiece of extracted spermatozoa, it appears in negatively stained preparations as a network of longitudinally oriented ribons of fibrillar material which are laterally interconnected. In detergent-extracted specimens the SMR remains attached to the outer mitochondrial membrane thereby suggesting a firm structural interaction. Negatively stained specimens also demonstrate that the outer mitochondrial membrane possesses a paracrystalline substructure and it is suggested that ordered arrays of membrane-associated proteins are involved in the structural interaction with the SMR. The potential roles of this cytoskeletal complex during spermiogenesis and in mature sperm are discussed.
pubmed:grant
pubmed:language
eng
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:author
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13-22
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:articleTitle
Mitochondria-cytoskeleton interactions in the sperm midpiece.
pubmed:affiliation
Department of Cell Biology, Vanderbilt University, Nashville, Tennessee 37232.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.