Navigation Links
Zona pellucida


The zona pellucida is a glycoprotein matrix surrounding the plasma membrane of a mammalian oocyte. This structure binds spermatozoa, and is required to initiate the acrosome reaction. The zona glycoprotein, ZP3 , is responsible for sperm binding, adhering to proteins on the sperm plasma membrane. There is evidence that ZP3 is then involved in the induction of the acrosome reaction, whereby a spermatozoon releases the contents of the acrosomal vesicle.

Reference

  • Oehninger S. 2003. Biochemical and functional characterization of the human zona pellucida. Reprod Biomed Online 7:641-8.

'"/>


See more about: Zona pellucida

TAG: Zona pellucida
Other biology definition
(Date:8/20/2008)...ed polyketals and their derivatives may improve tr...ung injury, acute liver failure and inflammatory b...ps of ribonucleic acid to disease locations in the...ped are simply a vehicle to get the drugs inside t...e," said Niren Murthy, assistant professor in the ...
(Date:8/20/2008)...ave found a way to convert ethanol and other biofu...lyst makes hydrogen from ethanol with 90 percent y...sive ingredients. , Umit Ozkan, professor of che...niversity, said that the new catalyst is much less...world, because it does not contain precious metals...
(Date:8/19/2008)... that even the tiniest changes in the environment ...ants, animals and humans, but rarely do we conside... those changes could mean for the infinite varieti...xperiences could be affected. , But University ...ohnsson understand that what we don,t see often ca...
(Date:8/19/2008)... things that exist underground, plant roots are ou..., leaves, and other aboveground plant parts are mo...our appreciation. Beneath every towering tree, tas...m that makes it all possible. Roots provide anchor...ts from soil, and reduce soil erosion. Roots also ...
Breaking Biology News(10 mins):Biodegradable polymers show promise for improving treatment of acute inflammatory diseases 2Biodegradable polymers show promise for improving treatment of acute inflammatory diseases 3A better way to make hydrogen from biofuels 2A better way to make hydrogen from biofuels 3UH researchers win top prize for research with humanitarian applications 2UH researchers win top prize for research with humanitarian applications 3Getting to the root of the matter 2National Walk to Work Day is April 4 14924 1National Walk to Work Day is April 4 14924 2Research to lead to brain tumor therapies 14921 1Research to lead to brain tumor therapies 14921 2Research to lead to brain tumor therapies 14921 3HIV Vaccine Funding 3A Enough is Enough Says AHF in Baltimore Sun 14917 1HIV Vaccine Funding 3A Enough is Enough Says AHF in Baltimore Sun 14917 2HIV Vaccine Funding 3A Enough is Enough Says AHF in Baltimore Sun 14917 3HIV Vaccine Funding 3A Enough is Enough Says AHF in Baltimore Sun 14917 4K State contributions to red flour beetle genome sequencing featured in March 27 issue of Nature 2584 1
...oding" microcapsules that could one day precisely ...eeks or even months after injection. The study, by...? Catholique de Louvain, is scheduled to appear in...mical Society,s journal Biomacromolecules . , Un... drug cargo only when exposed to ultrasonic waves ...
...and Jared Kennedy are thrilled with their New Year...the University of Kentucky Chandler Medical Center... to deliver a baby from the first commercial donor...gton, Kentucky and Phoenix, Arizona. , The techno...or infertile couples has been available for decade...
...ers skyrocketed 250 percent between 1994 and 2001,...federal government allowed direct-to-consumer adve...rescription drugs, according to a new Brandeis Uni... , This dramatic increase in adolescent visits to...scription for a psychotropic drug occurred despite...
...ven to animals that have neurological damage simil...newborns with cerebral palsy can significantly enh...chers say. , Using a commonly utilized animal mode...00,000-400,000 human stem cells into the brain of ...obility and other functions. The stem cells used ...
Other Biology News:US woman gives birth to baby from world's first frozen donor egg bank 2Psychotropic drug prescriptions for teens surge 250 percent over 7 year period 2Stem cell transplants improve recovery in animal models for stroke, cerebral palsy 2Stem cell transplants improve recovery in animal models for stroke, cerebral palsy 3Stem cell transplants improve recovery in animal models for stroke, cerebral palsy 4Stem cell transplants improve recovery in animal models for stroke, cerebral palsy 5