Rabbit monoclonal antibodies are widely used in research and diagnostics, particularly in immunohistochemistry (IHC), flow cytometry, and immunofluorescence (IF). Traditionally, these antibodies are produced from rabbit hybridomas, which is time-consuming with a low success rate. Advances in technology, such as phage display libraries, next-generation sequencing of B cells, and LC-MS/MS of polyclonal antibodies, have improved production, but they come with high costs and limited application.
At abm, we generate rabbit monoclonal antibodies from primary rabbit plasma cells/plasmablasts using a single-cell cloning method, memory B cell expansion, and FACS techniques. Our service includes customized antigen preparation, efficient FACS-based single-cell selection, stable cell-line generation, and humane animal treatment without sacrifice. We offer three standard protocol packages with optional extensions, including antigen production and guaranteed polyclonal Western Blot results.
Service Details
abm’s Rabbit Recombinant Monoclonal Antibody Production Service is divided into different phases, with a non-refundable $3,000 deposit to cover the material cost to initiate the project. The balance will be due upon completion of individual phases.
The basic package includes Phase I-IV and the complete package includes generation of recombinant antibody secreting stable cell line. Customer can also supply antigen or immunized whole spleen/PBMC/Bone marrow as the starting material for the project, please refer to the notes section for sample requirements.
Core Services
Service Name
Description
Cat. No.
Unit
Price
PHASE I Services: Antigen Production
Cloning/sub-cloning of gene of interest into a protein-encoding gene expression vector
Sequence confirmation
A set of multivariate small scale protein production trials are conducted to test for yield, solubility and optimal growth conditions
Large scale (>1mg) recombinant protein production and purification (purity ≥90%)
C151
1 Service
Inquire
PHASE II Service: Immunization
Immunization (2 rabbits) of antigen from PHASE I or customer provided sample*
Titre testing by ELISA
Guaranteed rabbit antiserum titre of 1:10000
C152
1 Service
Inquire
PHASE III Service: Single-Cell Cloning
Isolation of antibody secreting cell from PHASE II or customer provided sample**
Staining cells with fluorescently labelled reagents
Single cell sorting by FACS
Amplification of cognate pair of heavy and light chain variable regions from sorted single cell
DNA sequencing and single cell cloning of heavy & light chain variable regions
Cloning/subcloning of heavy and light chain variable regions into a recombinant antibody expression vector
Deliverables: DNA sequencing data of variable regions
C153
1 Service
Inquire
PHASE IV Service: Antibody Production
Small scale antibody production for validation studies with expression vector from PHASE III
Expression of full-length and complete recombinant antibody generation
Guaranteed 3 positive clones (tested via Western Blot)
Deliverables: 25mL of cell culture supernatant of all 3 clones
C154
1 Service
Inquire
PHASE V Service: Stable Cell Line Development
Cloning/subcloning of heavy and light chain variable regions into a viral vector
Viral packaging for gene delivery into a producer cell line
Drug screening and selection of high stable expression
Validation of recombinant antibody from the producer cell lines via Western Blot
Expansion and cryopresevation of selected clones
PCR based mycoplasma testing on selected producer cell lines
Deliverables: 25mL of cell culture supernatant of all 3 clones
C155
1 Service
Inquire
Add-On Service
Cat. No.
Unit
Price
Additional Clone(s): Generated from PHASE III-IV
C156
1 Clone
Inquire
Large-Scale production of recombinant antibody and purification of antibody by Protein A/G
C157
1 Service
Inquire
Note:
* Customers can supply the recombinant antigen for immunization: 3-4 mg of purified protein antigen or 2mg of KLH and BSA conjugated antigen (if the antigen is a small molecule).
** Customers can supply immunized whole spleen (in complete growth media) on ice, splenocytes (growth media with 10% DMSO) on dry-ice, fresh whole-blood with heparin on ice, PBMC (growth media with 10% DMSO) on dry-ice, or bone marrow (growth media with 10% DMSO) on dry-ice. Minimal of 10 million cells (splenocytes, PBMC, bone marrow) or 10-30mL of fresh whole-blood is required.
Customers have the option to start or stop the project from any stages of the rabbit monoclonal antibody generation service. Customers will be responsible for the material and labour cost incurred thus far should early termination be requested.
We use FACS to isolate plasma cell, plasmablast or memory B cells. We then clone out and sequence the single antibody secreting cell. In the case of memory B cells, the single memory B cell will be expanded using our proprietary method. We will test the expanded supernatant and clone out any positive clone. After sequence analysis, we will perform transient transfection and collect the culture supernatant to test the antibody’s functionality.
For the basic package, we will deliver ~25 mL of cell culture supernatant and the monoclonal antibody sequences. Stable cell-line will be supplied with the complete package. We do offer additional services, including large-scale antibody production, please contact us for more information.
For rabbit monoclonal antibody service, we use Western Blotting to ensure the produced antibody have affinity and specificity towards the antigen. Immunohistochemistry (C095) and Immunoprecipition tests (C094) are also available, however are NOT included in the production service. Please inquire with us for further antibody characterization. For rabbit polyclonal antibody services, we guarantee the antibodies will work against the designed antigens in ELISA format. Due to experimental variations, we do not guarantee downstream applications. It is important to understand that the customer takes full responsibility for the antigen designs or delivery.
Yes, however, in order to guarantee the antibody is effective against the native protein, purified native protein must be used for immunization. Recombinant protein or peptide extracts can also be used to immunize, but we cannot guarantee these will be effective against the native protein due to folding and other conformational concerns. Our service guarantees that the immunized protein (native or recombinant) or peptide will be recognized by the produced antibody.
For peptide or small molecule antigens we require at least 2 mg conjugated to carrier proteins such as KLH, OVA or BSA, while if it is a protein, 3-4 mg with concentrations of 0.5-1.0 mg/ml are acceptable.
No, the customer will only receive the custom antibody and the variable domains sequences. The customer will not receive any antibody expression vectors.
Please provide the antigen design or gene accession number and the service you are looking for (i.e. basic, complete or partial) to quotes@abmgood.com.
Ko, FC et al. "PKA-induced dimerization of the RhoGAP DLC1 promotes its inhibition of tumorigenesis and metastasis." Nat Commun 4:1618 (2013). PubMed: 23511482