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Leaky Scanning

Leaky Scanning

During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...

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Related Experiment Video

Updated: May 6, 2026

Biosensor-based High Throughput Biopanning and Bioinformatics Analysis Strategy for the Global Validation of Drug-protein Interactions

Biosensor-based High Throughput Biopanning and Bioinformatics Analysis Strategy for the Global Validation of Drug-protein Interactions

Published on: December 1, 2020

Bioprospecting open reading frames for peptide effectors.

Ling Xiong¹, Charles Scott

¹Department of Biochemistry & Molecular Biology, Thomas Jefferson University, Philadelphia, PA, USA.

Methods in Molecular Biology (Clifton, N.J.)

|October 23, 2013

Summary

This summary is machine-generated.

This study introduces incremental truncation to create diverse peptide libraries from genetic material. This method efficiently identifies minimal peptide effectors for drug discovery and target validation.

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Area of Science:

Biochemistry
Molecular Biology
Drug Discovery

Background:

Short peptides from interacting proteins are valuable ligands for drug development.
Identifying minimal peptide effectors from genomic sequences is challenging.

Purpose of the Study:

To develop a method for generating comprehensive peptide libraries.
To explore the therapeutic potential of candidate genes and druggable sites.

Main Methods:

Utilizing incremental truncation to diversify genetic material at the open reading frame scale.
Generating libraries of constituent peptides, including continuous and discontinuous sequence elements.
Supporting various peptide expression formats: free linear, backbone cyclic, fusion partners, and peptide aptamers.

Main Results:

The incremental truncation approach successfully diversifies genetic material into comprehensive peptide libraries.
The method is versatile, accommodating different peptide structures and expression strategies.
This technique provides a valuable source of molecular diversity.

Conclusions:

Incremental truncation is an effective strategy for generating diverse peptide libraries.
This approach facilitates the interrogation of the druggable genome and evaluation of therapeutic potential.
The method aids in identifying pharmacologically relevant peptides for drug discovery.