Related Experiment Video
Updated: May 9, 2026

07:13
ATAC-Seq Optimization for Cancer Epigenetics Research
Published on: June 30, 2022
Isolation of sequences flanking Ac insertion sites by Ac casting
1Iowa State University, Ames, IA, USA.
Methods in Molecular Biology (Clifton, N.J.)
|August 7, 2013
Summary
Ac casting is a PCR-based method that uses Ac transposition to rapidly clone unknown flanking sequences of Ac/Ds elements. This technique efficiently isolates Ac macrotransposon insertion sites for mutation studies.
Area of Science:
- Molecular Biology
- Genetics
- Plant Science
Background:
- Ac/Ds elements are crucial for studying mutations and chromosomal rearrangements.
- Identifying unknown flanking sequences of Ac/Ds insertions is a common research challenge.
Purpose of the Study:
- To describe the principle and application of Ac casting for cloning unknown Ac/Ds flanking sequences.
- To demonstrate Ac casting as an efficient method for isolating Ac macrotransposon insertion sites.
Main Methods:
- Ac casting is a Polymerase Chain Reaction (PCR)-based method.
- It leverages the somatic transposition activity of Ac during plant development.
- The method facilitates short-range genome walking to obtain flanking sequences.
Main Results:
- Ac casting provides an efficient means to clone unknown Ac/Ds flanking sequences.
- The method can be successfully applied to isolate Ac macrotransposon insertion sites.
Conclusions:
- Ac casting is a valuable tool for researchers needing to identify flanking genomic sequences of Ac/Ds elements.
- This technique simplifies the process of studying Ac-induced mutations and chromosomal rearrangements.
Related Concept Videos
Conservative Site-specific Recombination and Phase Variation
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
Restriction Enzymes
Restriction enzymes are bacterial enzymes used to cut DNA in a sequence-specific manner. To cleave DNA, they bind to specific palindromic sequences called restriction sites. Such palindromic DNA sequences or inverted repeats are commonly found in regions of functional significance, such as the origin of replication, gene operator sites, and regions containing transcription termination signals.
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...

