Description

o-Specific Antigen, Yersinia Ruckerii is a defined, high-purity antigenic polysaccharide derived from the cell wall of the *Yersinia ruckeri* bacterium. This compound is essential for the development and quality control of specific, reliable diagnostic assays and vaccine research targeting enteric redmouth disease (ERM) in aquaculture. It is primarily utilized by biotechnology companies, veterinary diagnostic laboratories, and academic research institutions focused on fish health and bacterial pathogenesis.

Application

• Diagnostic Kit Development: As a critical reference standard and coating antigen for ELISA and other immunoassays to detect *Yersinia ruckeri* antibodies in fish serum.
• Vaccine Research & Development: Used in the study of immunogenicity and as a component in conjugate vaccine candidates for ERM prevention.
• Quality Control & Potency Testing: Serves as a benchmark antigen for the standardization and validation of commercial diagnostic kits and vaccine batches.
• Immunological Studies: Employed in research to understand the host immune response, antibody specificity, and serotype characterization of *Y. ruckeri*.
• Reference Material: Provides a purified, characterized standard for laboratory method development and cross-laboratory comparison studies.

Basic Information

Product Name	o-Specific Antigen, Yersinia Ruckerii
CAS No.	132194-17-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Yersinia ruckeri O-antigen; Y. ruckeri Lipopolysaccharide O-chain; Yersinia ruckeri O-polysaccharide; ERM O-antigen; O-specific polysaccharide of Yersinia ruckeri; Yersiniosis antigen; Fish pathogen O-antigen
EINECS	Contact for details

Quality Control

Our o-Specific Antigen, Yersinia Ruckerii is produced under stringent conditions to ensure batch-to-batch consistency and high biological activity. Each lot undergoes comprehensive analytical characterization, including purity assessment and immunological identity confirmation. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters to support your regulatory and research requirements.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below for long-term stability. This material is hygroscopic (moisture-sensitive); allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and hydrolysis.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (Immunodiffusion)	Positive reaction with specific antisera
Purity (HPLC/GPC)	≥ 95% (by polysaccharide content)
Protein Content	≤ 1.0% (w/w)
Nucleic Acid Content	≤ 0.5% (w/w)
Endotoxin (LAL)	Contact for details
Solubility	Soluble in water or saline
Biological Activity (ELISA)	Reactive at specified dilution

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.