Linked Life Data

15293220

Source:http://linkedlifedata.com/resource/pubmed/id/15293220

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-8-4
pubmed:databankReference
pubmed:abstractText
Previously, we cloned and sequenced a sperm specific antigen, designated as HSS (EMBL nomenclature human sperm associated antigen 9: hSPAG9) from human testis (Shankar et al.: Biochem Biophys Res Commun 243:561-565, 1998). The present study was conducted to isolate baboon proteomic homologue in order to find out whether the baboon can provide a suitable model for examining its immunocontraception effects. Baboon SPAG9 (bSPAG9) was cloned and sequenced from the baboon testis cDNA library. The baboon cDNA contained open reading frame encoding 760 amino acids. A 90.6 and 96.8% homology between baboon and human SPAG9 was found at protein and DNA levels. Analysis for tissue specificity by Northern blot procedure using various baboon tissues indicated that bSPAG9 was specifically expressed only in the baboon testis. Further, cell type expression analysis by in situ hybridization in baboon testis demonstrated the expression of bSPAG9 mRNA transcript only in the round spermatid suggesting haploid germ cell expression. Anti-human SPAG9 antibodies recognized the acrosomal compartment region of baboon sperm in indirect immunofluorescence (IIF). Flow cytometry analysis showed surface localization of bSPAG9 in live baboon sperm. The amino acid sequence data for nonhuman primate SPAG9 suggest that antibodies generated by vaccinating baboon with hSPAG9 will recognize nonhuman primate SPAG9, supporting the testing of SPAG9 contraceptive vaccine based on hSPAG9 in the nonhuman primate model.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1040-452X
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
186-93
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Isolation and characterization of a haploid germ cell specific sperm associated antigen 9 (SPAG9) from the baboon.
pubmed:affiliation
Genes and Proteins Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't