Research-grade PROTAC tools
Design and analyze PROTACs in one place
Warhead–linker–warhead MW, linker length, ternary complex 3D, and export—for degrader discovery.
Research and education only. Not medical advice.
Go to PROTAC Molecular Weight to get started.
How it works
Search or enter sequence
Use the search above or go to the calculator to enter or assemble PROTAC components.Peptide Properties
Get properties & dose
Get molecular weight, logP, 3D assembly, synthetic accessibility.
Verify purity
Export PDB, SDF, PNG, PDF.Open Verify →
PROTAC → full properties
Enter or assemble target ligand, linker, E3 ligand. Get molecular weight, logP, 3D assembly, and synthetic accessibility. Export PDB, SDF, PNG, PDF.
3D Structure Viewer & Reaction Demo
View any PDB structure in-site (rotate, zoom, export, cite), or run a multi-frame peptide–receptor binding demo.
Calculator · 3D Viewer · Export
PROTAC MW, linker length calculator, physicochemical properties; ternary complex assembly, linker conformation, component alignment; export formats and complex export. Calculator → Calculator →
PROTAC Molecular Weight (linker)
Warhead–linker–warhead → total MW, logP, key properties.
Linker Library
Common linkers (PEG, VC, cleavable) with SMILES and properties.
Physicochemical Properties
pI, MW, charge, GRAVY from sequence or structure.
Ternary Complex Assembly
View target–linker–E3 assembly in 3D. Load PDB, measure, export.
Linker Conformation
Multi-frame 3D and linker conformation preview.
Component Alignment
Load PDB; align and view PROTAC components.
Export Formats
PDB, PNG, PDF. Download and cite.
Complex Export
Export ternary complex or component structures.
Docs
Getting started, PROTAC design, data sources, tutorials.
Pricing
Free tier for research. Pro & Enterprise for teams and API.
Calculation standards & reproducibility — IUPAC, Bjellqvist (pI), Expasy ProtParam. All results traceable and citable.
For peptide purity verification (Janoshik), see Verify. For Visual PROTAC quality control, use your preferred third-party lab.