Primary structure of the mouse sperm receptor polypeptide determined by genomic cloning

R. A. Kinloch, R. J. Roller, C. M. Fimiani, D. A. Wassarman, P. M. Wassarman

Research output: Contribution to journalArticlepeer-review

96 Scopus citations

Abstract

The mouse sperm receptor, a glycoprotein called ZP3, is synthesized and secreted by growing oocytes. It is present in more than a billion copies in the unfertilized egg's extracellular coat, or zona pellucida. We have cloned and characterized a region of the mouse (CD-1) genome that spans 10 kilobases of the ZP3 locus. The genomic clones described encompass the entire ZP3 coding region, which contains eight exons. The exons were identified, mapped, and sequenced, yielding the entire primary structure of the ZP3 polypeptide chain (424 amino acids; M(r), 46,300), which includes a 22-amino acid signal sequence. In addition, sequencing of genomic clones has revealed some unusual features of ZP3 mRNA and a region just downstream of the ZP3 gene.

Original languageEnglish
Pages (from-to)6409-6413
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume85
Issue number17
DOIs
StatePublished - 1988
Externally publishedYes

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