Sequence of the lacI gene

Area of Science:

• Molecular Biology
• Genetics
• Biochemistry

Background:

• The lac repressor protein regulates the lac operon in Escherichia coli.
• Understanding the genetic basis of protein structure is crucial for molecular biology.

Purpose of the Study:

• To determine the complete DNA sequence of the lacI gene.
• To provide a detailed structural basis for the lac repressor protein.

Main Methods:

• DNA sequencing of the 1,080 base pair lacI gene region.
• Bioinformatic analysis of the DNA sequence.

Main Results:

• The complete DNA sequence of the lacI gene was determined.
• The sequence codes for a 360 amino acid lac repressor protein.
• The DNA sequence confirms and extends previous protein sequence data.

Conclusions:

• The lacI gene sequence provides a foundation for understanding lac repressor structure and function.
• This detailed genetic information facilitates structural analysis of related genetic phenomena.