ELISA based quantification of Pax6 expression in the developing Zebrafish embryos

Area of Science:

• Developmental Biology
• Molecular Biology
• Biochemistry

Background:

• Transcription factors regulate key metabolic pathways and organ development during embryogenesis.
• Pax6 is a crucial transcription factor for vertebrate eye, brain, and central nervous system formation.

Purpose of the Study:

• To develop a sensitive and reliable quantitative assay for Pax6 expression in zebrafish embryos.
• To enable spatiotemporal expression analysis of Pax6 during zebrafish development.

Main Methods:

• Purification of Pax6 from zebrafish embryos using heparin agarose and DEAE cellulose chromatography.
• Confirmation of protein purity via SDS-PAGE and Western blotting.
• Quantification of Pax6 expression across 17 developmental stages using indirect ELISA.

Main Results:

• Maximum Pax6 expression observed at 8 hours post-fertilization (hpf).
• Quantified Pax6 levels at 179 ng/embryo (average total protein 9.5 µg/embryo).
• Confirmed zebrafish Pax6 protein size at 48 kDa via Western blotting.

Conclusions:

• This study establishes a method for quantifying transcription factor levels during early embryonic development in zebrafish.
• The developed assay provides a valuable tool for studying gene expression dynamics in developmental models.
• Facilitates research into the roles of proteins and transcription factors in embryogenesis.