If you need a unique antibody or protein conjugate, save time and resources by letting us take care of it for you. Our custom conjugation services team can provide high-quality conjugates for both research and commercial applications. Partner with us so you can focus your energy on innovation while we deliver the conjugates you need.
Get your custom conjugate in three easy steps:
- Request a quote to get in touch with our custom labeling services team. Fill out our form with your antibody or protein information as well as your desired label and labeling chemistry. Our team will provide a quote within 3–5 business days along with a shipping label to mail in your antibody.
- Send your antibody or protein to our team with the shipping label provided. Our expert team will utilize advanced bioconjugation techniques to efficiently label your antibodies with the desired molecules. Our team will then perform rigorous quality control efforts to help ensure accuracy and reliability of your conjugated antibody or conjugated protein.
- Receive your conjugate along with its conjugation data from our expert conjugation team.
Custom conjugation offerings
Our basic conjugation services include standard lysine conjugation, macromolecule crosslinking, and covalent coupling of beads.
Labeling Chemistry | Lysine | Heterobifunctional crosslink | Covalent coupling |
Label options | Alexa Fluor dyes Alexa Fluor Plus dyes pHrodo dyes LysoLight dyes DyLights FITC Texas Red ADC toxins Biotin | R-PE/APC HRP ConA | Antibodies/Proteins Oligos |
Standard quality control testing | Concentration DOL Free dye check | Concentration DOL Amax/A280 | Concentration Bead diameter sizing |
Minimum scale range | 0.2 mg–1 mg | 0.5–1 mg | 0.5–1 mg |
Estimated yield | 70% | 20–40% | 15–75% |
Our advanced conjugation services include small and large site-specific conjugation, bi-specific antibody production, and 1 to 1 antibody conjugation.
Labeling Chemistry | SiteClick | SiteClick | SiteClick | Lysine or SiteClick |
Label options | Alexa Fluor dyes Alexa Fluor Plus dyes pHrodo dyes LysoLight dyes Novafluors ADC toxins Metal-chelating compounds Biotin | R-PE/APC HRP Qdots | IgG Antibodies | R-PE/APC Oligonucleotides Brilliant polymer dyes
|
Standard quality control testing | Concentration DOL Free dye check | Concentration DOL Free dye check | Concentration DOL Free dye check | Concentration DOL Free dye check |
Minimum scale range | 0.5 mg | 1 mg | 1 mg | 0.5–1 mg |
Estimated yield | 70% | 20–50% | 20–40% | 10–30% |
Our basic conjugation services include standard lysine conjugation, macromolecule crosslinking, and covalent coupling of beads.
Labeling Chemistry | Lysine | Heterobifunctional crosslink | Covalent coupling |
Label options | Alexa Fluor dyes Alexa Fluor Plus dyes pHrodo dyes LysoLight dyes DyLights FITC Texas Red ADC toxins Biotin | R-PE/APC HRP ConA | Antibodies/Proteins Oligos |
Standard quality control testing | Concentration DOL Free dye check | Concentration DOL Amax/A280 | Concentration Bead diameter sizing |
Minimum scale range | 0.2 mg–1 mg | 0.5–1 mg | 0.5–1 mg |
Estimated yield | 70% | 20–40% | 15–75% |
Our advanced conjugation services include small and large site-specific conjugation, bi-specific antibody production, and 1 to 1 antibody conjugation.
Labeling Chemistry | SiteClick | SiteClick | SiteClick | Lysine or SiteClick |
Label options | Alexa Fluor dyes Alexa Fluor Plus dyes pHrodo dyes LysoLight dyes Novafluors ADC toxins Metal-chelating compounds Biotin | R-PE/APC HRP Qdots | IgG Antibodies | R-PE/APC Oligonucleotides Brilliant polymer dyes
|
Standard quality control testing | Concentration DOL Free dye check | Concentration DOL Free dye check | Concentration DOL Free dye check | Concentration DOL Free dye check |
Minimum scale range | 0.5 mg | 1 mg | 1 mg | 0.5–1 mg |
Estimated yield | 70% | 20–50% | 20–40% | 10–30% |
Optional add-on services
Purification/buffer exchange | Individual fractions | DOL optimization | Custom final packaging/formulation | |
---|---|---|---|---|
Optional add-on services include | BSA removal Ascites fluid purification Unique buffer formulations | Individual fractions with a fraction letter | 6 MRs (wide) 3 MRs (narrow) | Lyophilization Non-standard return buffer Final packaging over 20 individual aliquots |
Additional QC testing | |
---|---|
Optional add-on services include | Bradford BCA PAGE HPLC purity value HPLC chromatogram Custom CoA |
Special handling | |
---|---|
Optional add-on services include | Low endotoxin RNAse free |
Purification/buffer exchange | Individual fractions | DOL optimization | Custom final packaging/formulation | |
---|---|---|---|---|
Optional add-on services include | BSA removal Ascites fluid purification Unique buffer formulations | Individual fractions with a fraction letter | 6 MRs (wide) 3 MRs (narrow) | Lyophilization Non-standard return buffer Final packaging over 20 individual aliquots |
Additional QC testing | |
---|---|
Optional add-on services include | Bradford BCA PAGE HPLC purity value HPLC chromatogram Custom CoA |
Special handling | |
---|---|
Optional add-on services include | Low endotoxin RNAse free |
Custom conjugation chemistries explained
Basic conjugation services
Our basic conjugation services include standard lysine conjugation, macromolecule crosslinking, and conjugation to beads.
- Standard lysine conjugation utilizes efficient lysine chemistry for reliable labeling with a wide variety of labels. Find the optimal dye for your application and minimize spectral overlap by using our SpectraViewer tool
- Macromolecule crosslinking utilizes conventional amine and/or cysteine chemistry to conjugate large protein biomolecules
- Bead conjugation involves covalent attachment of antibodies or proteins to the bead surface, offering versatility across a range of applications
Site-specific conjugation
Our custom bioconjugation capabilities also include Invitrogen SiteClick antibody labeling techniques for highly efficient and site-specific antibody conjugation. SiteClick labeling allows for simple attachment of detection molecules far from the antigen-binding domain, helping provide covalent labeling without altering antibody function. Many detection molecules can be site-selectively attached to antibodies, including:
- Phycobiliproteins (e.g., R-PE and APC)
- Alexa Fluor and pHrodo dyes
- Antibody-drug conjugate toxins
- Biotin
- Metal-chelating compounds
- Qdot probes
Bi-specific antibody production
We use SiteClick chemistry to create a set of tetravalent bi-specific antibodies. This enables you to choose which pair of antibodies functions best as a bi-specific. Features of our bi-specific custom conjugation offerings include:
- Crosslink any two IgG antibodies
- No genetic engineering required
- Single link between two IgG heavy chains
1 to 1 antibody conjugation
One-to-one antibody conjugation helps ensure precise labeling with high specificity to enhance accuracy and sensitivity in your detection assays. Our one-to-one custom offerings include:
- RPE for antigen density measurement
- Oligonucleotide for spatial biology or gene therapy
- Brilliant polymer dyes for flow cytometry
Brochures and guides
Research tools
For Research Use Only. Not for use in diagnostic procedures.