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Signal Sequences and Sorting Receptors01:41

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Signal sequences are short amino acid sequences that guide newly synthesized proteins to their proper location within the cell. Classical signal sequences are fifteen to sixty amino acids long and present at the N-terminus of a polypeptide chain. Each signal sequence has a conserved segment of basic residues towards their N terminus, a hydrophobic core, and a C-terminus rich in polar residues. The C-terminus also contains a signal cleavage site and features a -3 -1 sequence motif. The -3-1...
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Screening Peptides that Activate MRGPRX2 using Engineered HEK Cells
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CPPred-RF: A Sequence-based Predictor for Identifying Cell-Penetrating Peptides and Their Uptake Efficiency.

Leyi Wei1, PengWei Xing1, Ran Su2

  • 1School of Computer Science and Technology, Tianjin University , Tianjin 300072, China.

Journal of Proteome Research
|April 25, 2017
PubMed
Summary
This summary is machine-generated.

This study introduces CPPred-RF, a new computational tool for identifying cell-penetrating peptides (CPPs) and predicting their uptake efficiency. This method enhances drug delivery by improving CPP identification accuracy.

Keywords:
cell-penetrating peptidesfeature representationfeature selectionmachine learning

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Area of Science:

  • Biochemistry
  • Computational Biology
  • Pharmacology

Background:

  • Cell-penetrating peptides (CPPs) are crucial for drug delivery and therapeutic applications.
  • Machine learning has advanced CPP identification, but limitations in feature representation persist.

Purpose of the Study:

  • To develop a novel, accurate predictor for cell-penetrating peptides (CPPs).
  • To establish the first online web server for simultaneous CPP and uptake efficiency prediction.

Main Methods:

  • Integrated multiple sequence-based feature descriptors for comprehensive CPP information.
  • Employed feature selection techniques to enhance representation.
  • Developed a two-layer prediction framework using the random forest algorithm.

Main Results:

  • CPPred-RF demonstrates competitive performance against state-of-the-art CPP predictors.
  • The study established the first online web server for predicting CPPs and their uptake efficiency.

Conclusions:

  • CPPred-RF offers improved feature representation for CPP identification.
  • The developed web server provides a valuable, accessible tool for CPP research and drug delivery applications.