BIAPSS

BIAPSS provides bioinformatic analysis of protein sequences that undergo liquid-liquid phase separation (LLPS) to identify sequence determinants and statistical features governing the formation of membraneless organelles (MLOs).

Key Features:

• Analytic Tools: Provides a suite of analytic tools for exploring sequence-dependent properties of proteins implicated in LLPS at single-sequence and global levels.
• SingleSEQ Tab: Performs residue-resolution analysis of individual protein sequences, correlating regions with physicochemical attributes and short linear motifs.
• MultiSEQ Tab: Computes global statistics across known LLPS-driver protein sequences to identify recurrent features and subgroup-specific patterns.
• Comprehensive Repository: Maintains a repository of pre-processed bioinformatic data on LLPS-driver proteins with detailed descriptions for implementation in computational protocols.
• Cross-Reference Section: Links entries to primary LLPS databases and external resources for cross-referencing sequence annotations and experimental sources.

Scientific Applications:

• MLO biogenesis analysis: Supports analysis of sequence features relevant to the biogenesis of membraneless organelles (MLOs).
• Identification of sequence determinants: Enables detection of statistically significant sequence signals and the molecular grammar underlying LLPS.
• Sequence design and evaluation: Facilitates design and evaluation of engineered sequences with targeted phase-separation properties for biomedical applications.
• Comparative and global studies: Supports exploration of sequence signals at individual and global levels by integrating databases with biophysical and bioinformatic analyses.

Methodology:

Uses a repository of pre-processed LLPS-driver protein sequence data; performs residue-resolution correlation of sequence regions with physicochemical attributes and short linear motifs; computes global statistics across LLPS sequences; and provides analytic applications for exploratory analysis.