3DPolyS-LE

3DPolyS-LE simulates chromatin dynamics and loop extrusion processes using polymer physics–based modeling to study chromosome organization mediated by Structural Maintenance of Chromosomes (SMC) complexes.

Key Features:

• Polymer Physics-Based Chromatin Modeling: Models chromatin as a dynamic polymer system to simulate three-dimensional chromosome structure and loop extrusion dynamics.
• Loop Extrusion Simulation: Simulates loop extrusion processes mediated by Structural Maintenance of Chromosomes (SMC) complexes and evaluates the effects of loop extruder properties and boundary elements on chromatin organization.
• Comparison with Hi-C Data: Implements algorithms to compare simulation outputs with experimental Hi-C datasets to evaluate predicted chromatin interaction patterns.
• Multi-Language Implementation: Implements the simulation framework using Python and Fortran 2003.

Scientific Applications:

• Chromatin Architecture Modeling: Simulates three-dimensional chromosome folding and loop formation to study genome organization.
• Loop Extrusion Mechanism Studies: Investigates the role of Structural Maintenance of Chromosomes (SMC) complexes in shaping chromatin loops and domain structures.
• Gene Regulation Research: Examines how chromatin loop extrusion and spatial genome organization influence regulatory interactions.
• Comparative Analysis with Experimental Data: Evaluates simulated chromatin interaction patterns against Hi-C data to study genome folding mechanisms.

Methodology:

3DPolyS-LE models chromatin as a polymer system, simulates loop extrusion processes defined by loop extruder and boundary element parameters, and compares simulated chromosome interaction patterns with experimental Hi-C data.