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Related Concept Videos

Protein Organization01:13

Protein Organization

Overview
Protein Folding01:22

Protein Folding

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Protein Organization01:24

Protein Organization

Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
Protein and Protein Structures02:15

Protein and Protein Structures

Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...
Protein Organization01:24

Protein Organization

Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence.
Bacterial Protein Maturation01:26

Bacterial Protein Maturation

Bacterial protein maturation is a tightly regulated process that ensures newly synthesized polypeptides achieve correct functional conformations. This maturation involves a series of modifications, folding events, and quality control steps, often assisted by specialized chaperone proteins.N-Terminal ModificationsThe maturation of bacterial polypeptides begins cotranslationally as the polypeptide exits the ribosome. The first amino acid, N-formylmethionine (fMet), is typically modified at the...

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Related Experiment Video

Updated: May 12, 2026

Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues
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BracketMaker: Visualization and optimization of chemical protein synthesis.

Judah L Evangelista1, Michael S Kay1

  • 1Department of Biochemistry, University of Utah, Salt Lake City, Utah, USA.

Protein Science : a Publication of the Protein Society
|September 14, 2024
PubMed
Summary

BracketMaker is a new open-source Python tool that automates the creation and analysis of chemical protein synthesis (CPS) diagrams. It simplifies designing synthetic routes for complex proteins, improving efficiency and standardization in the field.

Keywords:
E. coli ribosomePython toolschemical protein synthesisgraphic design toolsnative chemical ligation

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Area of Science:

  • Biochemistry
  • Synthetic Biology
  • Computational Chemistry

Background:

  • Chemical protein synthesis (CPS) is a powerful technique for creating custom peptides.
  • Current methods for designing CPS workflows, using bracket diagrams, are manual and error-prone.
  • A lack of standardized bracket formats hinders comparisons between different synthetic strategies.

Purpose of the Study:

  • To develop an automated, user-friendly tool for creating and analyzing chemical protein synthesis (CPS) bracket diagrams.
  • To standardize the representation of CPS workflows for improved clarity and comparison.
  • To facilitate the rapid development of synthesis plans for complex proteins.

Main Methods:

  • Developed BracketMaker, an open-source Python program with a graphical user interface (GUI).
  • Implemented a custom graphics engine to convert text-based protein sequences and reaction steps into high-quality bracket images (vector or PNG).
  • Integrated an 'AutoBracket' tool for automated retrosynthetic analysis to rank possible ligation orders using native chemical ligation, protection, and desulfurization.

Main Results:

  • BracketMaker enables rapid creation and analysis of CPS brackets from standardized text input.
  • The 'AutoBracket' tool automatically generates and ranks potential synthetic pathways.
  • Demonstrated the pipeline's utility by developing a synthesis blueprint for 65 proteins of the minimal Escherichia coli ribosome.

Conclusions:

  • BracketMaker and its associated tools provide an efficient pipeline for designing chemical protein synthesis strategies.
  • Automation of bracket diagram creation and analysis significantly reduces manual effort and potential errors.
  • The developed system aids in planning complex protein syntheses, as evidenced by its application to E. coli ribosome proteins.