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Updated: May 25, 2026

Using Mouse Oocytes to Assess Human Gene Function During Meiosis I

Using Mouse Oocytes to Assess Human Gene Function During Meiosis I

Published on: April 10, 2018

Proteoglycans: gene cloning.

Mauricio Cortes¹, James R Mensch, Miriam Domowicz

¹Departments of Pediatric, The University of Chicago, Chicago, IL, USA.

Methods in Molecular Biology (Clifton, N.J.)

|January 19, 2012

Summary

Researchers constructed a full-length chick aggrecan cDNA for transgenic studies. This involved ligating two overlapping cDNA subfragments cloned into the TOPO-TA vector pCR2.1.

Area of Science:

Molecular Biology
Developmental Biology
Biochemistry

Background:

Aggrecan is a vital proteoglycan in vertebrate development and adult tissues.
Previous work determined the chick aggrecan coding sequence but lacked a full-length cDNA.
A complete cDNA is essential for advanced research, including transgenic expression studies.

Purpose of the Study:

To construct a full-length chick aggrecan cDNA.
To facilitate future transgenic expression studies of aggrecan.

Main Methods:

Generated two overlapping cDNA subfragments of the chick aggrecan gene.
Cloned these subfragments into the pCR2.1 TOPO-TA vector.
Utilized XbaI digestion and ligation to join the subfragments into a full-length cDNA.

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Main Results:

Successfully created a full-length chick aggrecan cDNA molecule.
The constructed cDNA is ready for use in transgenic expression studies.

Conclusions:

A robust method was established for constructing full-length cDNAs from overlapping fragments.
The availability of full-length chick aggrecan cDNA opens new avenues for research into its developmental and physiological roles.