Single Domain Antibody (sdAb) Service


Complex structures and high production costs associated with monoclonal antibodies (mAbs) have limited their achievable clinical applications. For this reason, scientists focusing on antibody drug discovery have shifted their interests toward recombinant antibody fragments.

Recombinant antibodies, such as single domain antibodies (sdAb), are a new generation of engineered antibody fragment that consisted of a single monomeric variable antibody domain. sdAb is derived from camelid heavy chain antibodies which lack the light chain and CH domain of the heavy chain in the conventional Fab region. Therefore sdAb is smaller, more soluble and has higher stabilities than conventional antibody. sdAb also features higher permeability, lower immunogenicity and both simple and cost-effective production procedures. These advantages have made it possible for sdAb to have a broader range of applications within the biotechnology, pharmaceutical and immuno-therapeutic industries.

Based on Synbio Technologies’ extensive expertise in sdAb and advanced sdAb discovery technology, we can provide our customers with a comprehensive one stop solution from antigen production to specific recombinant sdAb expression.

Competitive Advantages

  • Experienced antibody production team
  • Proprietary Universal AntigenTM immunization technology
  • Robust phage-display technology platform
  • Advanced yeast-display technology platform (Large library capacity: ~ 109)
  • Cost effective and milestone payment scheme

Standard Process


Service Specification

MilestonesStandard DeliverablesTurnaround Time
(Business day)
Camel immunization (eg. dromedaries, camels, llamas, and alpacas)
  1. A glycerol stock of sdAb expressing bacteria (TG1)
  2. Phage-displayed sdAb library
  3. Top 5 identified sdAb strain and corresponding sequences
  4. Full reports (PDF)
10 – 11 Months
PBMC isolation & immune library construction
Screening of phage-displayed library
Functional assay for sdAb
Large scale sdAb expression by yeast
(followed by properties identification)

How to Order Single Domain Antibody (sdAb) Service

If you have any questions, please feel free to contact us for assistance during business hours. Our experienced project managers will provide you with professional support to ensure the success of your project.

Online Inquiry
+1 732-230-3003
+1 609 228 5911