Linked Life Data

8894280

Source:http://linkedlifedata.com/resource/pubmed/id/8894280

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1997-2-3
pubmed:abstractText
A panel of monoclonal antibodies (mAbs) has been generated against sea urchin sperm axonemes and selected for their ability to inhibit the motility of sea urchin sperm models. The mAb C9 recognized a 50 kDa protein on blots of sea urchin sperm axonemes. Two-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis revealed that C9 recognized isoforms of beta-tubulin. Low concentrations of C9 (0.1-1.0 microgram/ml) blocked the motility of sea urchin sperm models by decreasing the sliding velocity and frequency of flagellar beating to less than 1 Hz and by modifying the shear angle along the axoneme, especially the distal end. Other antitubulin antibodies had little effect on motility at concentrations 100-fold higher than those effective for C9. The effects on motility were not restricted to flagella of sea urchin spermatozoa. Flagellar beating of the dinoflagellate Oxyrrhis marina was completely blocked by C9 in a manner reminiscent of that of sea urchin sperm flagella. The mAb also inhibited the motility of human spermatozoa and Chlamydomonas reinhardtii. Immunofluorescence techniques revealed that C9 stains the whole axoneme of sea urchin spermatozoa and O. marina flagella together with the cortical network of O. marina cell body. C9 is the first antitubulin antibody reported to interfere with flagellar beat frequency. The observation that this antibody arrests the motility of flagella from sea urchin sperm along with that of dinoflagellate, algae, and human sperm flagella suggests that the epitope recognized by C9 is conserved over a long period of evolution and plays an important role in sperm motility.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0886-1544
pubmed:author
pubmed:issnType
Print
pubmed:volume
35
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
100-12
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Inhibition of flagellar beat frequency by a new anti-beta-tubulin antibody.
pubmed:affiliation
URA 671 CNRS, Univ. P. et M. Curie, Villefranche-sur-Mer, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't