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Article: Binding of zona binding inhibitory factor-1 (ZIF-1) from human follicular fluid on spermatozoa

TitleBinding of zona binding inhibitory factor-1 (ZIF-1) from human follicular fluid on spermatozoa
Authors
Issue Date2003
PublisherAmerican Society for Biochemistry and Molecular Biology, Inc. The Journal's web site is located at http://www.jbc.org/
Citation
Journal Of Biological Chemistry, 2003, v. 278 n. 15, p. 13570-13577 How to Cite?
AbstractPrevious studies showed that zona binding inhibitory factor-1 (ZIF-1) was the glycoprotein mainly responsible for the spermatozoa zona binding inhibitory activity of human follicular fluid. ZIF-1 has a number of properties similar to glycodelin-A. A binding kinetics experiment in the present study demonstrated the presence of two binding sites of ZIF-1 on human spermatozoa. These binding sites were saturable, reversible, and bound to 125I-ZIF-1 in a time-, concentration-, and temperature-dependent manner. Glycodelin-A shared one common binding site with ZIF-1 on spermatozoa, and it could displace only 70% of the 125I-ZIF-1 bound on human spermatozoa. ZIF-1 and glycodelin-A formed complexes with the soluble extract of human spermatozoa. Coincubation of solubilized zona pellucida proteins reduced the binding of ZIF-1 to two complexes of the extract, suggesting that the ZIF-1 binding sites and zona pellucida protein receptors on human spermatozoa were closely related. ZIF-1, but not glycodelin-A, significantly sup-pressed progesterone-induced acrosome reaction of human spermatozoa. The carbohydrate moieties derived from ZIF-1 reduced the binding of native ZIF-1 on human spermatozoa as well as the zona binding inhibitory activity of the glycoprotein, although the intensity of the effects are lower when compared with the native protein. These effects are not due to the action of the molecules on the motility, viability, and acrosomal status of the treated spermatozoa. Deglycosylated ZIF-1 had no inhibitory effect on both ZIF-1 binding and zona binding capacity of spermatozoa. We concluded that the carbohydrate part of ZIF-1 was critical for the functioning of the glycoprotein.
Persistent Identifierhttp://hdl.handle.net/10722/87368
ISSN
2015 Impact Factor: 4.258
2015 SCImago Journal Rankings: 3.151
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChiu, PCNen_HK
dc.contributor.authorKoistinen, Ren_HK
dc.contributor.authorKoistinen, Hen_HK
dc.contributor.authorSeppala, Men_HK
dc.contributor.authorLee, KFen_HK
dc.contributor.authorYeung, WSBen_HK
dc.date.accessioned2010-09-06T09:28:46Z-
dc.date.available2010-09-06T09:28:46Z-
dc.date.issued2003en_HK
dc.identifier.citationJournal Of Biological Chemistry, 2003, v. 278 n. 15, p. 13570-13577en_HK
dc.identifier.issn0021-9258en_HK
dc.identifier.urihttp://hdl.handle.net/10722/87368-
dc.description.abstractPrevious studies showed that zona binding inhibitory factor-1 (ZIF-1) was the glycoprotein mainly responsible for the spermatozoa zona binding inhibitory activity of human follicular fluid. ZIF-1 has a number of properties similar to glycodelin-A. A binding kinetics experiment in the present study demonstrated the presence of two binding sites of ZIF-1 on human spermatozoa. These binding sites were saturable, reversible, and bound to 125I-ZIF-1 in a time-, concentration-, and temperature-dependent manner. Glycodelin-A shared one common binding site with ZIF-1 on spermatozoa, and it could displace only 70% of the 125I-ZIF-1 bound on human spermatozoa. ZIF-1 and glycodelin-A formed complexes with the soluble extract of human spermatozoa. Coincubation of solubilized zona pellucida proteins reduced the binding of ZIF-1 to two complexes of the extract, suggesting that the ZIF-1 binding sites and zona pellucida protein receptors on human spermatozoa were closely related. ZIF-1, but not glycodelin-A, significantly sup-pressed progesterone-induced acrosome reaction of human spermatozoa. The carbohydrate moieties derived from ZIF-1 reduced the binding of native ZIF-1 on human spermatozoa as well as the zona binding inhibitory activity of the glycoprotein, although the intensity of the effects are lower when compared with the native protein. These effects are not due to the action of the molecules on the motility, viability, and acrosomal status of the treated spermatozoa. Deglycosylated ZIF-1 had no inhibitory effect on both ZIF-1 binding and zona binding capacity of spermatozoa. We concluded that the carbohydrate part of ZIF-1 was critical for the functioning of the glycoprotein.en_HK
dc.languageengen_HK
dc.publisherAmerican Society for Biochemistry and Molecular Biology, Inc. The Journal's web site is located at http://www.jbc.org/en_HK
dc.relation.ispartofJournal of Biological Chemistryen_HK
dc.rightsJournal of Biological Chemistry. Copyright © American Society for Biochemistry and Molecular Biology, Inc.en_HK
dc.titleBinding of zona binding inhibitory factor-1 (ZIF-1) from human follicular fluid on spermatozoaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-9258&volume=278&issue=15&spage=13570&epage=13577&date=2003&atitle=Binding+of+zona+binding+inhibitory+factor-1+(ZIF-1)+from+human+follicular+fluid+on+spermatozoaen_HK
dc.identifier.emailChiu, PCN:pchiucn@hku.hken_HK
dc.identifier.emailLee, KF:ckflee@hku.hken_HK
dc.identifier.emailYeung, WSB:wsbyeung@hkucc.hku.hken_HK
dc.identifier.authorityChiu, PCN=rp00424en_HK
dc.identifier.authorityLee, KF=rp00458en_HK
dc.identifier.authorityYeung, WSB=rp00331en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1074/jbc.M212086200en_HK
dc.identifier.pmid12571233-
dc.identifier.scopuseid_2-s2.0-0037494894en_HK
dc.identifier.hkuros80413en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037494894&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume278en_HK
dc.identifier.issue15en_HK
dc.identifier.spage13570en_HK
dc.identifier.epage13577en_HK
dc.identifier.isiWOS:000182189500122-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChiu, PCN=25959969200en_HK
dc.identifier.scopusauthoridKoistinen, R=7006574669en_HK
dc.identifier.scopusauthoridKoistinen, H=7003612125en_HK
dc.identifier.scopusauthoridSeppala, M=35475165300en_HK
dc.identifier.scopusauthoridLee, KF=26643097500en_HK
dc.identifier.scopusauthoridYeung, WSB=7102370745en_HK

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