Description

Fixj Protein is a specialized biochemical reagent with the CAS registry number 136253-38-8. This high-purity protein is engineered for applications requiring precise biological activity and structural integrity. It serves as a critical component for researchers and manufacturers in the biotechnology, pharmaceutical, and diagnostic sectors. Its consistent quality and performance make it an essential material for advanced life science applications.

Application

• Biopharmaceutical Research: Used as a reference standard, assay component, or substrate in drug discovery and development pipelines.
• Diagnostic Kit Manufacturing: Incorporated as a key reactive protein in immunoassays, biosensors, and point-of-care testing devices.
• Enzyme & Protein Engineering: Serves as a model protein or starting material for structural studies, stability testing, and functional modification.
• Cell Culture & Media Supplementation: Employed as a growth factor or stabilizing agent in specialized cell culture media formulations.
• Bioconjugation & Labeling: Acts as a target for chemical modification with fluorophores, enzymes, or other tags for detection and tracking.
• Academic & Institutional Research: Utilized in fundamental biochemical and molecular biology studies.

Basic Information

Product Name	Fixj Protein
CAS No.	136253-38-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	FixJ Protein; FixJ transcriptional regulator; FixJ response regulator; Nitrogen fixation protein J; FixJ (Rhizobium meliloti); CAS 136253-38-8; Response regulator FixJ
EINECS	Contact for details

Quality Control

Our Fixj Protein is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, potency, and consistency, meeting the exacting standards required for research and industrial use. Certificates of Analysis (COA) detailing specifications and test results are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below for long-term stability. This product is hygroscopic (moisture-sensitive); allow the vial to equilibrate to room temperature in a dry environment before opening to prevent condensation. For short-term use, aliquoting is recommended to avoid repeated freeze-thaw cycles.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (SDS-PAGE)	Conforms to standard
Purity (HPLC)	≥ 95%
Protein Content (BCA)	≥ 90%
Biological Activity	Assay-dependent; COA provided
Endotoxin Level (LAL)	< 1.0 EU/µg
Solubility	Soluble in appropriate aqueous buffers
Moisture Content (KF)	< 5.0%

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