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Related Experiment Videos

Lambda ZAP: a bacteriophage lambda expression vector with in vivo excision properties.

J M Short1, J M Fernandez, J A Sorge

  • 1Stratagene Cloning Systems, La Jolla, CA 92037.

Nucleic Acids Research
|August 11, 1988
PubMed
Summary
This summary is machine-generated.

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The Lambda ZAP vector simplifies cDNA cloning by allowing direct excision of phagemids, streamlining DNA analysis. This novel cloning vector facilitates faster isolation and characterization of gene clones.

Area of Science:

  • Molecular Biology
  • Recombinant DNA Technology
  • Gene Expression

Background:

  • Traditional cDNA cloning involves multiple subcloning steps, increasing time and potential for error.
  • Efficient gene cloning and expression are crucial for functional genomics and protein studies.

Purpose of the Study:

  • To introduce and characterize the Lambda ZAP, a novel lambda insertion cDNA cloning vector.
  • To demonstrate the vector's utility in constructing and screening cDNA expression libraries.

Main Methods:

  • Construction of the Lambda ZAP vector incorporating the pBluescript SK(-) phagemid.
  • Excision of the phagemid using helper phage (f1 or M13).
  • Preparation of a chicken liver cDNA library and screening for actin and glucocerebrosidase clones.

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Main Results:

  • The Lambda ZAP vector enables direct excision of the pBluescript SK phagemid, eliminating subcloning.
  • Unique restriction sites within the polylinker facilitate expression of inserted coding sequences as fusion proteins.
  • Successful isolation and identification of actin clones via DNA sequencing.
  • Detection of glucocerebrosidase fusion proteins, confirming the vector's utility for expression libraries.

Conclusions:

  • The Lambda ZAP vector significantly accelerates the process of isolating and analyzing cDNA clones.
  • Its design supports efficient construction of cDNA expression libraries for protein detection.
  • This vector represents a valuable tool for molecular biology research, enhancing cloning and expression workflows.