Description

Tul4 Protein CAS NO 130427-68-8 is a highly purified protein antigen derived from *Francisella tularensis*, the causative agent of tularemia. This product is critical for research and development in the fields of immunology, vaccine development, and diagnostic assay creation. It serves as an essential reagent for scientists and manufacturers focused on biodefense, infectious disease research, and the production of immunological testing kits. Our supply ensures consistent quality and reliability for high-stakes applications.

Application

• Immunoassay Development: Used as a key coating antigen or detection target in ELISA, lateral flow assays, and other serological tests for tularemia.
• Vaccine Research: Serves as a critical component in the research and development of subunit vaccines against *Francisella tularensis*.
• Antibody Production & Purification: Employed for the immunization of animals to generate polyclonal or monoclonal antibodies specific to the Tul4 protein.
• Diagnostic Reference Standard: Acts as a purified standard for the calibration and validation of diagnostic equipment and test kits.
• Basic Research: Utilized in microbiological and immunological studies to understand host-pathogen interactions and virulence mechanisms.
• Biodefense & Biosurveillance: A vital reagent in government and public health programs aimed at detecting and countering biological threats.

Basic Information

Product Name	Tul4 Protein
CAS No.	130427-68-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Francisella tularensis Outer Membrane Protein; F. tularensis Tul4 Antigen; Tul4 Outer Membrane Protein; FopA; 17 kDa Outer Membrane Protein; Francisella Protein Tul4; Tularemia Antigen
EINECS	Contact for details

Quality Control

Our Tul4 Protein is manufactured under stringent conditions to ensure the highest standards of purity and biological activity. Each batch undergoes rigorous analytical testing, including SDS-PAGE for purity assessment, Western Blot for specificity, and endotoxin level quantification. A comprehensive Certificate of Analysis (COA) detailing identity, purity, concentration, and sterility is provided with every shipment to guarantee traceability and compliance with research-grade specifications.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at -20°C or below. Avoid repeated freeze-thaw cycles. This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (Western Blot)	Positive reaction with specific antisera
Purity (SDS-PAGE)	≥ 90%
Protein Content (BCA)	≥ 95% of total weight
Endotoxin Level (LAL)	< 1.0 EU/µg
Solubility	Soluble in appropriate aqueous buffers
Biological Activity	Confirmed by immunoassay reactivity

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