Identification of the Ped gene at the molecular level

The Q9 MHC class I transgene converts the Ped slow to the Ped fast phenotype

Y. Xu, P. Jin, A. L. Mellor, C. M. Warner

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

The Ped (preimplantation embryo development) gene, which maps to the Q region of the mouse major histocompatibility complex (MHC), controls the rate of cleavage division of preimplantation mouse embryos and subsequent embryonic survival. Of the ten known MHC class I genes in the Q region of the mouse MHC, four-Q6, Q7, Q8, and Q9-are almost identical and encode similar proteins, all called the Qa-2 antigen. Previous studies have suggested that the Q9 gene encodes the Ped gene. To test this directly, one-cell embryos from the CBA/Ca strain (Ped slow) that is missing the Q9 gene and the Qa-2 antigen were injected with the Q9 gene from the C57BL/10 strain (Ped fast) that possesses the Q9 gene and expresses the Qa-2 antigen. The resulting Q9 transgenic mice were found to express the Qa-2 antigen. In addition, it was found that introduction of the Q9 gene converted the Ped gene phenotype of the recipient strain from slow to fast. Therefore, the Ped gene product is the Qa-2 antigen encoded by the Q9 gene.

Original languageEnglish (US)
Pages (from-to)695-699
Number of pages5
JournalBiology of Reproduction
Volume51
Issue number4
DOIs
StatePublished - Jan 1 1994

Fingerprint

Major Histocompatibility Complex
Transgenes
Embryonic Development
Phenotype
Genes
MHC Class I Genes
Blastocyst
Transgenic Mice
Embryonic Structures
Q surface antigens

ASJC Scopus subject areas

  • Reproductive Medicine
  • Cell Biology

Cite this

Identification of the Ped gene at the molecular level : The Q9 MHC class I transgene converts the Ped slow to the Ped fast phenotype. / Xu, Y.; Jin, P.; Mellor, A. L.; Warner, C. M.

In: Biology of Reproduction, Vol. 51, No. 4, 01.01.1994, p. 695-699.

Research output: Contribution to journalArticle

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