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Related Experiment Videos

[lambda N gene expression regulated by the leader sequence].

Q R Hu1, B M Han, M Y Li

  • 1Institute of Genetics, Chinese Academy of Sciences, Beijing 100101, China. grhu@genetics.ac.cn

Yi Chuan Xue Bao = Acta Genetica Sinica
|September 14, 2001
PubMed
Summary
This summary is machine-generated.

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Altering the translational initiation region of the lambda N gene increases its expression by regulating translation. Modifying the upstream sequence or pre-terminating the ORF lambda N peptide enhances lambda N gene expression.

Area of Science:

  • Molecular Biology
  • Gene Expression Regulation

Context:

  • The lambda N gene's expression is regulated at the translational level.
  • The leader sequence of the lambda N gene contains an open reading frame (ORF lambda N) that influences downstream gene expression.

Purpose:

  • To investigate the regulatory mechanisms of lambda N gene expression.
  • To identify strategies for increasing lambda N gene expression.

Summary:

  • Constructed three series of plasmids with mutations in the lambda N gene's leader region.
  • Fusion gene expression (ORF lambda N-lacZ) was suppressed by the ORF lambda N code region.
  • Mutations involving pre-termination of ORF lambda N or deletions in its upstream sequence increased lambda N gene expression.

Impact:

Related Experiment Videos

  • Demonstrated that ORF lambda N translation efficiency impacts lambda N gene expression.
  • Identified two methods to enhance lambda N gene expression: pre-terminating ORF lambda N translation or improving its upstream sequence translation efficiency.