Yeast display based Naïve VHH Library from Camel

High-diversity large naïve VHH (nanobody) library from camel for antibody discovery and screening. This yeast displays a VHH library, enabling efficient screening of recombinant single-domain antibodies (VHHs) with subnanomolar affinity, supporting applications such as FACS, ELISA, WB, and therapeutic research applications.

For more information and full product specifications, please visit our yeast display page.

Yeast display (yeast surface display) is a widely used platform for protein and antibody engineering. Compared to traditional prokaryotic phage display, the yeast system ensures superior protein folding, post-translational modifications (PTMs), and translocation. This eukaryotic environment is critical for maintaining the structural integrity and functionality of complex VHH antibodies prior to surface presentation.

From Immune Libraries to Ready-to-Use Naïve Libraries

Traditional VHH libraries from immunized Camelidae yield somatically matured binders with high affinity, but building a new library for each antigen requires 6–12 weeks of immunization, lymphocyte isolation, and library construction — at high time and cost. To address this pain point, we constructed large naïve VHH libraries from 20 healthy, non-immunized Bactrian camels (PBMC + spleen):

Diversity: >10⁹ individual transformants
Unique sequences: >90%
Positive insert rate: >99.99%

Leveraging this ultra-large, off-the-shelf library combined with our advanced yeast display screening platform, we achieve broader epitope coverage and help clients rapidly identify optimal monoclonal VHH candidates. Even without somatic maturation, yeast display-based selection routinely isolates VHHs with subnanomolar affinity suitable for standard immunoassays and therapeutic research.

Library Overview

Library Type: Yeast Surface Display Naïve VHH Library
Source: Non-immunized Bactrian Camel (PBMC + Spleen from 20 donors)
Diversity: >10⁹ individual transformants
Unique Sequences: >90%
Positive Insert Rate: >99.99%
Format: 1 mL ready-to-use glycerol stock

Yeast dispaly based Naïve VHH Library from Camel

Key Features of Yeast Display

Direct connection between genotype and phenotype, enabling precise selection of nanobody candidates
Each yeast cell displays 10⁴–10⁵ copies of VHH, allowing high-sensitivity screening
Enables quantitative measurement of binding affinity and expression via FACS
Supports 3–5 rounds of enrichment for rapid identification of high-affinity clones
Fully compatible with recombinant camelid VHH (nanobody) library screening

Similar to phage display, yeast display provides a direct connection between genotype and phenotype. A plasmid containing the gene of interest is maintained within yeast cells, and the encoded VHH is expressed on the cell surface for functional screening.

The display level of each yeast cell typically ranges from 10⁴ to 10⁵ copies of VHH, supporting robust signal detection during screening.

Fluorescence-activated cell sorting (FACS) enables quantitative analysis of antigen binding and VHH expression levels, allowing precise selection of high-affinity nanobody candidates.

Typically, 3–5 rounds of enrichment are performed to isolate target antigen-binding clones with desired affinity and specificity.

Individual yeast clones are further evaluated for specificity and reproducibility. Functional VHH candidates are then sequenced as part of downstream antibody validation.

Screening & Affinity Selection

Fluorescence-activated cell sorting (FACS) enables selection based on binding affinity and expression level
Affinity in the subnanomolar range achieved from naïve libraries
Provides reproducible and validated VHH candidates for immunoassays and therapeutic research
Naive VHH Library from Camel ensures broad epitope coverage for diverse antigen targets

Applications

This naïve VHH (nanobody) library is widely used in the following applications:

Application	Description
Antibody Screening	Identify monoclonal VHH candidates using yeast display from Camel
Flow Cytometry	Quantitative assessment of VHH binding via FACS
Immunoassays	ELISA, Western blot (WB), Immunoprecipitation (IP) validation
Therapeutic Research	Discovery of high-affinity single-domain antibodies for drug development