RbDe

RbDe generates residue-based schematic diagrams of protein sequences to visualize secondary structure elements and transmembrane regions for analysis and communication of sequence–structure relationships.

Key Features:

• Customizable Diagrams: Imports custom diagram layouts to tailor schematic representations to specific proteins or protein families and to illustrate sequence features within topological context.
• Automated Layout Algorithm: Implements an algorithmic method for drawing residue-based schematic diagrams on a 2D plane that automates placement of residues and secondary structure elements.
• Transmembrane-Specific Engine: Contains an engine specifically designed for transmembrane proteins (including G protein-coupled receptors and transporters) that can be adapted to other protein families or folds.
• Loop Rendering: Provides routines to render loops that connect arbitrary points in 2D space, enabling depiction of connecting segments between secondary structure elements.
• Diagram Libraries: Supports creation and storage of reusable diagram libraries for repeated use in analyses and figures.
• Dynamic Adjustments: Allows dynamic adjustments and customizations of diagram layouts to reflect updated hypotheses or experimental data.
• Secondary-Structure and Residue-Level Representation: Focuses on accurate representation of secondary structures and the spatial arrangement of residues, particularly within transmembrane regions.

Scientific Applications:

• Transmembrane Protein Analysis: Illustrates topology and sequence–structure relationships for transmembrane proteins such as G protein-coupled receptors and transporters.
• Visualization of Complex Proteins: Provides schematic visualizations to summarize and communicate structural features of complex proteins.
• Mutagenesis Mapping: Summarizes mutagenesis experiments by mapping mutations onto residue-based diagrams within structural context.
• Annotation and Database Representation: Represents and interprets data from protein databases and context-dependent annotations on schematic topologies.

Methodology:

Algorithmic approach that draws residue-based schematic diagrams on a 2D plane, using a transmembrane-focused engine and routines to render loops connecting arbitrary points, and supporting dynamic layout adjustments.