ProteinFlow
ProteinFlow — AI Protein Structure Studio
A browser-based 3D protein structure studio, comparable to PyMOL. Load PDB/mmCIF/FASTA files, explore structures in multiple representations (cartoon, ball & stick, surface…), inspect sequence and physicochemical properties, and analyze with a built-in AI assistant — no install, no sign-up.
AI protein studio — 3D viewer, sequence & structure analysis
Key features
Real-time 3D rendering with multiple representations & color themes
Load PDB / mmCIF / FASTA files or by PDB ID
Sequence view with secondary-structure coloring and property analysis
AI assistant for structure Q&A and visualization control
How it works
From opening ProteinFlow to getting results in three steps.
- 1
Load a structure
Open PDB, mmCIF, or FASTA files from your computer, or fetch any published structure instantly by its PDB ID.
- 2
Explore in 3D
Switch between cartoon, ball & stick, and surface representations, apply color themes, and inspect the sequence view with secondary-structure coloring.
- 3
Analyze & export
Check physicochemical properties, ask the AI assistant about the structure, and export high-resolution images for reports and slides.
Who is it for?
Three typical ways people put ProteinFlow to work.
Structural biology researchers
Load a structure and get an interactive view in seconds — no installs, no licenses, ideal for quick checks and remote collaboration.
Educators
Teach secondary structure, active sites, and ligand binding with interactive 3D that students can rotate on any device.
Students
Explore protein structure hands-on, connect sequence to structure, and learn how representations reveal different features.
Everything you can do
Multiple representations
Cartoon, ball & stick, and surface views with smooth switching — see both the fold and the atomic detail.
Color themes
Color by secondary structure, chain, residue property, and more to highlight exactly what you are discussing.
Sequence view
A linked sequence view with secondary-structure coloring makes it easy to locate residues in the 3D structure.
Physicochemical properties
Molecular weight, isoelectric point, hydrophobicity, and amino acid composition at a glance.
AI assistant
Ask questions about the structure or control the visualization through natural-language commands.
PDB ID fetch
Type a four-character PDB ID to pull any published structure directly — no downloads or conversions.
Why a browser-based tool?
How ProteinFlow compares with desktop software and registration-based online platforms.
| Aspect | ProteinFlow | Desktop software | Online platforms |
|---|---|---|---|
| Cost | Free forever | Paid license | Subscription |
| Installation | None — runs in the browser | Download & install | None — runs in the browser |
| Account | No account required | License activation | Registration required |
| Data privacy | Stays on your device | Stored locally | Uploaded to cloud servers |
| Platform | Any device with a browser | Tied to one OS | Any device with a browser |
| Updates | Always up to date | Manual updates | Always up to date |
Frequently asked questions
- Can I analyze my own protein structures?
- Yes. Load PDB, mmCIF, or FASTA files from your computer, or fetch a structure directly by PDB ID, then explore it in multiple representations such as cartoon, ball & stick, and surface.
- Is ProteinFlow a good PyMOL alternative?
- For everyday tasks like viewing structures, inspecting sequences and physicochemical properties, and running quick analyses, ProteinFlow is a free, browser-based alternative to desktop tools like PyMOL — no install required.
- Are my structure files uploaded to a server?
- No. Structures you load are parsed and rendered locally in your browser. Your files stay on your device throughout the session.
- Can I export images of the structure?
- Yes. You can export high-resolution snapshots of the current view, ready for lab notebooks, presentations, and papers.
- What file formats are supported?
- PDB and mmCIF structure files plus FASTA sequences are supported, and you can fetch any published structure directly by PDB ID.
- Does it work on laptops and tablets?
- Yes. ProteinFlow runs in any modern browser on desktops, laptops, and tablets — useful for lectures, journal clubs, and quick desk-side discussions.
Ready to explore ProteinFlow?
Launch ProteinFlow right now in your browser — free, no sign-up required. Your data stays on your device.