Peptide Synthesis

Custom peptides crafted for your research -- 3 to 149 amino acids, any modification, any purity, any scale from milligrams to kilograms. Precision, flexibility, and quality -- all in one.


Watsonbio Sciences, a provider of synthetic peptides, is compliant with The U.S. Framework for Nucleic Acid Synthesis Screening. Watsonbio provides high-quality peptide synthesis services of up to 149 residues with fast turnaround times. We offer production scales ranging from milligrams to kilograms, along with comprehensive labeling and modification options, as well as rapid, high-throughput peptide library synthesis to support a wide range of research applications.

No charge if we are not able to synthesize your peptide successfully!
Send your request to info@watsonbio.com or click Request Quote below
Custom Peptide Synthesis
Peptide Library Synthesis

N-terminal Modifications

  • Acetylation
  • Formylation
  • Fatty acid
  • Benzoyl (Bz)
  • Palmytolyl
  • Benzyloxycarbonylation (CBZ)
  • Succinylation
  • Myristic acid
  • Acryl
  • D(+)Glucose
  • Chenodeoxycholic acid
  • Tertbutoxycarbonyl (Boc)
  • 3-Mercaptopropyl (Mpa)
  • Cy5, 5.5, 7
  • Alexa 468
  • ...more

Unusual Amino Acids

  • D-Ala, D-Phe, D-Met, D-Pro, D-Leu, D-Val, Beta-Ala, pGlu, Hyp, D-Ile
  • D-Arg, D-Asp, D-Cys, D-Glu, D-Thr, D-Asn, D-Gln, D-Ser,D-His, D-Trp, D-Lys, D-Tyr, D-Orn, (D)1-Nal, (D)2-Pal, (D)4-Cl-Phe, Orn, Abu, Aib, Nva, Nle, Hse, Hcy, Mpa, Pen N-Methyl amino acid (Ala,Phe,Leu,Ile,Val,Gly,Met)
  • ...more

C-terminal Modifications

  • Amidation
  • Ethylamine
  • Methyl ester
  • Thioester
  • Acryl
  • AMC
  • pNA (p-Nitroanilide)
  • NHS (OSu)
  • {AMC},7-Amino-4-methylcoumarin
  • Cy5, 5.5, 7
  • Alexa 468
  • ...more

Quenched Fluorescent Peptides

  • Abz/Tyr(3-NO2)
  • EDANS or DABCYL
  • Glu(EDANS)-NH2
  • Lys(DABCYL)/(Abz)
  • ...more

Amino Acid Modifications

  • Glycosylation - Glucose, Galactose, Mannose
  • Phosphorylation -Tyr,Ser, Thr
  • Lys(Me2)
  • Arg(Me2)
  • Lys(Ac), Cys(Ac)
  • Dinitrobenzoylation(Lys)
  • Ser(Octanoic acid)
  • Cys(Acm)
  • Cys(tBu)
  • Lys(Fmoc)
  • Tyr(Nitrated), Tyr(OEt), K(Acryl)
  • ...more

Isotopic Labeling

  • ...more

Fluorescence/Dye Modifications

  • Biotin (N-Terminal)
  • Glu(Biotin-PEG2)
  • Lys(Biotin) (middle, C-Terminal)
  • FITC/5-FAM (N-Terminal)
  • FITC/5-FAM (C-Terminal, via side chain of Lys)
  • Dansyl (N-Terminal)
  • TAMRA (N-Terminal)
  • TAMRA (C-Terminal, side chain Lys)
  • MCA (N-Terminal)
  • HYNIC (N-Terminal)
  • DOTA, NOTA, DTPA (N-Terminal)
  • ...more

MAPS and Carrier Complex

  • Asymmetric 2/4/8 branches
  • Glu 2 Branches (N & C-Terminals)
  • n-mer Branch peptide on Lys/Thr/Ser side chain
  • ...more

Cyclic Peptides

  • Mono Disulfide-bridge
  • Double Disulfide-bridge
  • Triple Disulfide-bridge
  • Amide cyclic (Side chain-end, head-tail)
  • ...more

Staple Peptide

  • ...more

References

Send your request to info@watsonbio.com or click Request Quote below
Custom Peptide SynthesisPeptide Library Synthesis