Title :

Identification of lipid raft glycoproteins obtained from boar spermatozoa

Author(s) :

López-Salguero, José Benito [Auteur]
Universidad Autonoma Metropolitana, Unidad Iztapalapa [UAM]
Fierro, Reyna [Auteur]
Universidad Autonoma Metropolitana, Unidad Iztapalapa [UAM]
Michalski, Jean-Claude [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Jiménez-Morales, Irma [Auteur]
Universidad Autonoma Metropolitana, Unidad Iztapalapa [UAM]
Lefebvre, Tony [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Mondragón-Payne, Oscar [Auteur]
Universidad Autonoma Metropolitana, Unidad Iztapalapa [UAM]
Baldini, Steffi F. [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
Edouart (vercoutter), Anne-Sophie [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle - UMR 8576 [UGSF]
González-Márquez, Humberto [Auteur]
Universidad Autónoma Metropolitana [Mexico] [UAM]

Journal title :

Glycoconjugate journal

Abbreviated title :

Glycoconj J

Volume number :

37

Pages :

499-509

Publisher :

Springer Science and Business Media LLC

Publication date :

2020-05-04

English keyword(s) :

Boar spermatozoa
Capacitation
Glycoprotein
Lipid rafts
Lectin

HAL domain(s) :

Sciences du Vivant [q-bio]
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire/Biologie moléculaire

English abstract : [en]

The surface of the spermatozoa is coated with glycoproteins the redistribution of which during in vitro capacitation plays a key role in the subsequent fertilization process. Lipid rafts are membrane microdomains involved ...
Show more >The surface of the spermatozoa is coated with glycoproteins the redistribution of which during in vitro capacitation plays a key role in the subsequent fertilization process. Lipid rafts are membrane microdomains involved in signal transduction through receptors and include or recruit specific types of proteins and glycoproteins. Few studies have focused on identifying glycoproteins resident in the lipid rafts of spermatozoa. Proteins associated with lipid rafts modify their localization during capacitation. The objective of the study was to identify the glycoproteins associated with lipid rafts of capacitated boar spermatozoa through a lectin-binding assay coupled to mass spectrometry approach. From the proteomic profiles generated by the raft proteins extractions, we observed that after capacitation the intensity of some bands increased while that of others decreased. To determine whether the proteins obtained from lipid rafts are glycosylated, lectin blot assays were performed. Protein bands with a good resolution and showing significant glycosylation modifications after capacitation were analyzed by mass spectrometry. The bands of interest had an apparent molecular weight of 64, 45, 36, 34, 24, 18 and 15 kDa. We sequenced the 7 bands and 20 known or potential glycoproteins were identified. According to us, for ten of them this is the first time that their association with sperm lipid rafts is described (ADAM5, SPMI, SPACA1, Seminal plasma protein pB1, PSP-I, MFGE8, tACE, PGK2, SUCLA2, MDH1). Moreover, LYDP4, SPAM-1, HSP60, ZPBP1, AK1 were previously reported in lipid rafts of mouse and human spermatozoa but not in boar spermatozoa. We also found and confirmed the presence of ACR, ACRBP, AWN, AQN3 and PRDX5 in lipid rafts of boar spermatozoa. This paper provides an overview of the glycosylation pattern in lipid rafts of boar spermatozoa before and after capacitation. Further glycomic analysis is needed to determine the type and the variation of glycan chains of the lipid rafts glycoproteins on the surface of spermatozoa during capacitation and acrosome reaction.Show less >

Language :

Anglais

Audience :

Non spécifiée

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576

Research team(s) :

O-GlcNAcylation, signalisation cellulaire et cycle cellulaire

Submission date :

2020-06-26T12:32:09Z
2020-06-26T12:38:47Z
2020-11-18T07:26:40Z