Solubility Predictor

Predict peptide solubility based on amino acid composition and get reconstitution recommendations. Enter single-letter amino acid codes or choose a preset.

Sequence Input

Amino acid sequence (single-letter codes)

0 residues

Common peptide presets

Results

Enter an amino acid sequence to see results

General Solubility Guidelines

Peptides with net positive charge at neutral pH tend to be more soluble
Peptides with many hydrophobic residues may need co-solvents
Cysteine-rich peptides may aggregate via disulfide bonds
Short peptides (<10 residues) are generally more soluble than long ones
pH can significantly affect solubility — basic peptides dissolve better in slightly acidic solutions

Rough estimate only

This predictor uses a simplified rules-based analysis of amino acid composition. Actual solubility depends on many additional factors including peptide conformation, post-translational modifications, salt concentration, temperature, and pH. Always verify with experimental testing.

Solubility Predictor

Sequence Input

Results

General Solubility Guidelines

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Solubility Predictor

Sequence Input

Results

General Solubility Guidelines