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Custom Antibody Services

Monoclonal Antibodies

Unparalleled Quality and Service
It’s been our mantra from the beginning, and this philosophy will never change at Synpeptide.  No matter what type of project you have or what type of antigen you wish to use (peptide or protein), you can trust us with your antibody development.  We do everything possible to make certain you have the results you expect and deserve, and our animal facilities are AAALAC accredited, OLAW assured, and USDA licensed to ensure all proper care is taken and research animals are treated appropriately.
If you are frustrated by the quality of catalog antibodies you receive, or are working with a novel target unavailable in catalogs, custom antibody production - with the flexibility to design a peptide antigen catered to your own needs - is the logical place to turn.  As a core competency, making clean and pure peptides has always been something that Synpeptide has done well.  However, even if using the purest peptide possible, unless that peptide is designed the right way you may not get the results you are looking for.  Over the past 15 years, we have developed a proprietary process for this design that works.  This comprises quite a bit more time and effort than our competitors are willing to put in, but the results - happy customers - are worth it.

Our Design Philosophy

First and foremost we know it is important to listen to your needs and react accordingly.  More often than not, however, the design results that exemplify a quality peptide for antibody production will follow these three main tenets:
· Specificity – We ensure the antigen has a low chance of cross-reacting with closely related family members or proteins from a similar class.
· Antigenicity – We ensure the antigen will likely produce a strong, measurable response. Our average ELISA titer across all our varied projects is >1:1,000,000.
· Structure – We design our sequences to mimic the normal protein structure as best as possible in order to generate antibodies that have the best chance to bind to the protein (not only the peptide) across multiple assay formats.
There are times where one of these aspects will be in conflict with another.  Rest assured that in these cases we work with you to find the best compromise to fit your needs.
The design process (included in all projects) is only one of the benefits you gain from working with us.  Our dedication to fast, helpful service is another.  Whether you have a project with layers of special design and in-process work, or you have a purified protein you want to send us for the generation of anti-sera, we treat you like you are the only customer we have.

Our Standard Rabbit Polyclonal Antibody Package

Rather than itemize every last detail, we keep it simple with all-inclusive pricing on every package we offer.  All of our offerings are based on the Standard Package, which includes:
• Antigen design/Bioinformatics
• ~15-mer peptide, 10mg at >85%
• 5mg uncoupled peptide sent to customer, 4mg coupled to KLH, 1mg for ELISA
• Mass Spec and HPLC trace
• Three immunizations of two rabbits (New Zealand White - SPF)
• 5mL pre-immune serum per rabbit
• Two production bleeds (40-50mL antiserum) per rabbit
• ELISA on 1st production bleed
Many customers also add affinity purification, which tends to remove potential background signal across multiple applications.

Modification Specific Antibodies - Reagents You Can Trust

Post-translational modifications regulate a myriad of biological functions.  Studying and tracking these events with antibodies you can trust are a rock you can build the rest of your research on.
We have made thousands of modification specific antibodies, using a myriad of different types of modifications (phosphorylation, methylation, acetylation, cleavage-site, nitrosylation, ubiqination, etc.).  The approach that works for all of these is straightforward and essentially the same: Immunize with the target peptide and perform purifications on the resultant sera using columns made with both the target peptide and a negative control peptide or peptides.  Different projects can require adjustments to this process, of course, but this general procedure is the start of what we know ensures the most specific resultant end material possible.  Why settle for anything less?

Our Modification Specific Protocol Structure

• Antigen design/Bioinformatics
• Two peptides at >90%, 14mg modified, 10mg non-modified peptide
• 5mg uncoupled to customer, 1mg for ELISA, 4mg column each peptide
• 4mg modified-peptide coupled to KLH
• Mass Spec and HPLC trace (each peptide)
• Three immunizations of two rabbits (New Zealand White - SPF)
• 5mL pre-immune serum per rabbit
• Two production bleeds (40-50mL antiserum) per rabbit
• ELISA on 1st production bleed (each peptide)
• Double affinity purification of 40-50mL antiserum to yield modification-specific antibody

The Results

An   conducted years ago of nine separate peptide providers found the antibody results that derived from using our materials were twice as robust as those of any other vendor.  We were also found to have the best customer service of all participating companies.

Polyclonal Antibodies

Our custom polyclonal antibodies are typically robust and specific, but there are times when the very nature of their varied response can limit your research.  When you need a long term solution to obtaining a homogenous supply of reliable and continuously reproducible material, a monoclonal antibody is where you turn 
Whether you wish to use peptides, proteins, or something entirely novel, we will communicate with you to develop the right strategy to meet your needs. 
Below is our standard service broken down into the typical multi-phase development plan.  We can easily customize various aspects of this to your specifications whenever necessary.
Phase I: Inception                    $3,400
• SYN will analyze target protein and suggest peptide antigen, or customer can supply material for immunization
• Proper screening methods will be discussed and finalized
• Four mice (Balb/c) will be immunized over a period of seven weeks
• Anti-sera will be analyzed by ELISA using appropriate material and/or samples sent to customer for evaluation 
Phase II: Development             $5,700
• Splenocyte cells from top two mice will be fused with a myeloma cell line
• Fusions will be screened for hybridomas producing specific antibodies by ELISA
• Expanded fusion positives will be screened in a reconfirmation assay from which up to twenty different parental clones will be selected and supernatant samples sent to customer for evaluation
• One vial of each parental clone will be frozen and stored for future use  
Phase III: Production                $2,100
• Sub-cloning of 1-2 parental cell lines with ELISA screening and expansion
• Up to two positive subclones from each parental clone will be expanded and isotyped, with a final deliverable of 50mL supernatant from each sent to the customer for evaluation
• All remaining material is frozen and can be banked for a period of one year
Please contact us for additional information or send an email to peptide@synpeptide.com 
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