Route design
Chemical synthesis method (solid phase synthesis SPPS, liquid phase synthesis): for short peptides (biasanya ≤50 asam amino), need to select protection group strategy, coupling reagents, dll..
Biosynthesis (recombinant DNA technology): expression of long peptides or complex modified peptides by microorganisms or cells, requires optimization of host selection (misalnya. E. E.coli, yeast) and culture conditions..
Process optimization
Synthesis/expression optimization: increase yield (misalnya. suhu, pH, catalyst concentration).
Purification process: chromatography (reversed-phase HPLC, ion exchange) is key, need to optimize elution conditions.
Kontrol pengotor: remove missing peptides, mismatched sequences, produk oksidasi, dll.. to ensure purity (biasanya >98%).