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Related Concept Videos

Protein Organization01:13

Protein Organization

Overview
Protein-Protein Interfaces02:04

Protein-Protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Protein-protein Interfaces02:04

Protein-protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
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Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Protein Complex Assembly02:41

Protein Complex Assembly

Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

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Related Experiment Video

Updated: May 16, 2026

Application of I TASSER, trRosetta, UCSF Chimera, HADDOCK server, and HEX loria for De Novo and In Silico Design of Proteins
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Application of I TASSER, trRosetta, UCSF Chimera, HADDOCK server, and HEX loria for De Novo and In Silico Design of Proteins

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PythiaStudio: a one-stop protein engineering platform powered by Pythia model suite.

Jinyuan Sun1,2, Kelun Shi1,2, Han Li3

  • 1State Key Laboratory of Microbial Diversity and Innovative Utilization, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.

Nucleic Acids Research
|May 15, 2026
PubMed
Summary

PythiaStudio is a new web platform that predicts how mutations impact protein stability and binding. This tool aids in protein engineering and drug discovery by simplifying complex computational methods for researchers.

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Last Updated: May 16, 2026

Application of I TASSER, trRosetta, UCSF Chimera, HADDOCK server, and HEX loria for De Novo and In Silico Design of Proteins
05:08

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Published on: July 8, 2025

Protein Engineering by Yeast Surface Display
05:49

Protein Engineering by Yeast Surface Display

Published on: November 29, 2024

Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules
10:58

Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules

Published on: July 25, 2013

Area of Science:

  • Biochemistry
  • Computational Biology
  • Protein Engineering

Background:

  • Predicting mutation effects on protein stability and binding is vital for protein engineering and drug development.
  • Existing computational tools often require specialized expertise and lack unified workflows.

Purpose of the Study:

  • To introduce PythiaStudio, a web platform integrating Pythia, Pythia-PPI, and Pythia-Pocket models for predicting mutational effects.
  • To provide an intuitive interface for predicting protein stability, protein-protein binding affinity, and ligand binding pockets.
  • To offer an integrated workflow for rational protein design combining stability and fitness predictions.

Main Methods:

  • Integration of Pythia, Pythia-PPI, and Pythia-Pocket deep learning models into a comprehensive web platform.
  • Development of an intuitive user interface for prediction tasks and interactive visualization tools (e.g., heatmaps, structure viewers).
  • Implementation of a two-step computational redesign strategy combining stability and fitness predictions.

Main Results:

  • PythiaStudio successfully predicts mutational effects on protein stability and binding affinity.
  • The integrated engineering workflow demonstrated successful improvements in thermostability and catalytic activity for glycoside hydrolases and amidases.
  • The platform provides interactive visualization tools for enhanced data interpretation.

Conclusions:

  • PythiaStudio democratizes access to advanced deep learning-based protein engineering methods.
  • The platform empowers researchers without computational expertise to perform sophisticated protein engineering tasks.
  • PythiaStudio facilitates rational protein design through combined stability and fitness predictions.