Date of Award

1-1-2013

Language

English

Document Type

Dissertation

Degree Name

Doctor of Arts (DA)

College/School/Department

Department of Biological Sciences

Content Description

1 online resource (xi, 219 pages) : illustrations (some color)

Dissertation/Thesis Chair

Caro-Beth Stewart

Committee Members

Richard Zitomer, Albert Millis, Jayanti Pande

Keywords

B1, 4-galactosyltransferase family, combinatorial, evolution, fertilization, lysozyme family, sperm-egg binding, Galactosyltransferases, Lysozyme, Sperm-ovum interactions, Mammals

Subject Categories

Biology

Abstract

Understanding the specificity of sperm-egg recognition during mammalian fertilization has been a topic of intense study for many years, and yet the biochemical basis for this process is still largely unknown. Mammalian eggs are covered by thick glycoprotein coats, called zona pellucida (ZP), which contain glycans of varying structures that must be specifically recognized, and presumably cleaved, for fertilization to occur. Various experiments have implicated B1,4-galactosyltransferase 1 (B4GalT1) in the ability of mouse sperm to bind the ZP. Here I present evidence that additional members of the B4GalT family (specifically B4GalT3 and B4GalT4) are present on mouse and rat sperm, suggesting that these paralogs of BGalT1 might also be involved in fertilization.

Included in

Biology Commons

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