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Fa Yi Xue Za Zhi ; 28(2): 112-4, 119, 2012 Apr.
Artigo em Zh | MEDLINE | ID: mdl-22619806

RESUMO

OBJECTIVE: To investigate distribution specificity of human fucosyltransferase 5 (FUT5) as well as its expression and localization in spermatids. METHODS: Human semen, vaginal swab, saliva and venous blood from healthy individuals were collected. The spermatids were isolated and the spermatid membrane protein was then extracted. Expression levels of FUT5 from human spermatid membrane, seminal plasma, vaginal fluid, saliva and serum were detected by immunoblotting technique. The expression and localization of FUT5 in spermatids were analyzed by immunofluorescent method. RESULTS: Immunoblotting technique showed that FUT5 was expressed on spermatid membranes and in serum, but not in seminal plasma, vaginal fluid and saliva. The expressed FUT5 on spermatids was mostly localized on head of spermatids by fluorescent microscopy, suggesting that there was certain amount of FUT5 on human spermatid membrane, and the spermatids might be isolated from mixed stains with vaginal fluid by antigen-antibody reaction. CONCLUSION: Human FUT5 shows a characteristic distribution specificity, and this feature may be used for identification of mixed stain involved in criminal sexual offence in future forensic practice.


Assuntos
Genética Forense/métodos , Fucosiltransferases/metabolismo , Sêmen/metabolismo , Espermátides/metabolismo , Membrana Celular/metabolismo , Feminino , Imunofluorescência/métodos , Fucosiltransferases/genética , Humanos , Immunoblotting , Masculino , Saliva/metabolismo , Sêmen/citologia , Vagina/metabolismo
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