0000000000435298

AUTHOR

Eileen Dietzel

showing 2 related works from this author

Fetuin-B, a liver-derived plasma protein is essential for fertilization.

2013

SummaryThe zona pellucida (ZP) is a glycoprotein matrix surrounding mammalian oocytes. Upon fertilization, ZP hardening prevents sperm from binding to and penetrating the ZP. Here, we report that targeted gene deletion of the liver-derived plasma protein fetuin-B causes premature ZP hardening and, consequently, female infertility. Transplanting fetuin-B-deficient ovaries into wild-type recipients restores fertility, indicating that plasma fetuin-B is necessary and sufficient for fertilization. In vitro fertilization of oocytes from fetuin-B-deficient mice only worked after rendering the ZP penetrable by laser perforation. Mechanistically, fetuin-B sustains fertility by inhibiting ovastacin,…

Malemedicine.medical_specialtyCell Membrane Permeabilitymedicine.medical_treatmentmacromolecular substancesFertilization in VitroBiologyGeneral Biochemistry Genetics and Molecular BiologyMiceHuman fertilizationPregnancyInternal medicinemedicineAnimalsZona pellucidaMolecular BiologyZona Pellucidachemistry.chemical_classificationProteaseOvaryGene Expression Regulation DevelopmentalEmbryoCell BiologyEmbryo TransferEmbryo MammalianSpermFetuinSpermatozoaFetuin-BRecombinant ProteinsCell biologyEnzyme ActivationMice Inbred C57BLmedicine.anatomical_structureEndocrinologychemistryFertilizationMetalloproteasesOocytesGameteFemaleGlycoproteinInfertility FemaleDevelopmental BiologyDevelopmental cell
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Structure of mammalian plasma fetuin-B and its mechanism of selective metallopeptidase inhibition

2018

The co-crystal structure of the metallopeptidase astacin with its specific protein inhibitor fetuin-B reveals a novel mechanism of inhibition.

Crystallographymammalian fertilizationmetallopeptidaseResearch Papersstructure determination570 Life sciencesenzyme mechanismsprotein inhibitorQD901-999multi-protein complexessperm–egg fusionpolyspermyprotein structureX-ray crystallography570 Biowissenschaften
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