Peptide International offers custom peptides of the highest quality. State-of-the-art peptide synthesizers, HPLC, and mass spectrometry instruments are utilized for these peptide synthesis services. In terms of chemistry, advanced peptide methodologies are employed by us for peptide syntheses. Peptides are purified by HPLC using reverse phase columns. Other purification methods are also available if needed.
All custom peptides are accompanied by a peptide synthesis report, HPLC and mass spectrometry analyses. Additional analytical data, such as amino acid sequencing and/or analysis can be provided upon request for an additional charge. All peptides will be shipped lyophilized free of charge. Most custom peptides can be delivered within 2-3 weeks of receiving an official order. Complete confidentiality of all peptide synthesis orders is assured.
Note: The lowest prices of modified peptide synthesis services are guaranteed.
Email: sales@peptideInternational.com
Custom peptide synthesis service with guaranteed high quality and fast delivery.
Peptide acetylation / amidation / methylation / phosphorylation.
Fluorescein / Biotin labeled peptides.
Cyclic peptides.
MAP peptides.
High success rate: >98%.
Various purity levels: crude, desalted, >75%, >85%, >90%, >95%, >98%, and even above 99%.
Various scales from milligrams to kilograms.
Various peptide length: up to 200 amino acids.
Free aliquoting up to 5 vials.
2-3 weeks of turnaround time.
Large scale (>1 gram), Long sequence (>50mer), unusual, and difficult peptides are available upon request.
Free consulting services for selecting antigen specificity for polyclonal and monoclonal antibody production. A lot of experience with antibody development using modified peptides, such as phosphopeptides.
Using both the method of Liquid Phase Peptide Synthesis (LPPS) and the method of Solid Phase Peptide Synthesis (SPPS), Peptide International Corp provides custom peptide synthesis, synthesizing small to large scale, simple to complex, linear or cyclized peptides with various length up to 200 amino acids, and different purity levels, such as crude, desalted, >75%, >85%, >90%, >95%, >98%, and even above 99%. Peptide International Corp synthesizes standard and custom peptide libraries. Peptide International Corp also does various peptide modification, including N-terminal, C-terminal, or internal modification, Fluorescent or dye labeling, and modification with special amino acid, such as phosphorylated.
N-terminus modifications: acetylation, HYNIC, DTPA, formylation, fatty acid, myristic acid, palmytolyl, benzyloxycarbonylation (CBZ), succinylation (Suc).
C-terminus modifications: amidation, p-Nitroanilide(pNA), AMC.
Special amino acid: D-Arg, D-Cys, D-Asp, D-Asn, D-Glu, D-Gln, D-Ser, D-His, D-Thr, D-Trp, D-Leu, D-Ile, D-Met, D-Pro, D-Val, D-Phe, pGlu, Hyp, D-Lys, D-Tyr, D-Orn, Orn, Abu, Aib, (D)1-Nal, (D)2-Pal, (D)4-Cl-Phe, Nva, Nle, Hse, Hcy, Pen, Mpa, N-Methyl amino acid (Ala, Phe, Leu, Ile, Val, Gly, Met), Other amino acid, Dinitrobenzoylation (Lys), Lys (Me2), Phosphorylation (Tyr, Ser, Thr, single site), Tyr (SO3H2), and Ser (octanoic acid).
Cyclic peptide: Disulfide bridge 1st, Disulfide bridge 2nd, Disulfide bridge 3rd, amide cyclic (Side chain, end).
Fluorescence/dye labeling: Biotin (N-Terminal, Y/N Ahx), Biotin (Lys in sequence), Biotin (without Lys in sequence), FITC/5-FAM (N-Terminal, Y/N Ahx), Dansyl (N-Terminal, Y/N Ahx), MCA (N-Terminal), p-Nitroanilide (pNA, C-Terminal), AMC (C-Terminal).
Quenched fluorescent peptide: Abz / Tyr (3-NO2), EDANS/DABCYL.
Multiple Antigenic Peptide (MAP) system: asymmetric 4 branches, symmetric 4 branches, asymmetric 8 branches, symmetric 8 branches.
Protein carrier conjugation: Keyhole Limpet Hemocyanin (KLH), Bovine Serum Albumin (BSA).
Analytical HPLC chromatogram and MS data are provided to assure quality guarantee and custom satisfaction.