Description

Low Affinity Tryptophan Permease, E Coli CAS NO 55126-97-1 is a specialized membrane transport protein derived from *Escherichia coli* that facilitates the uptake of tryptophan. This product is essential for researchers studying amino acid transport mechanisms, membrane protein structure-function relationships, and bacterial physiology. It is a critical reagent for biotechnology and pharmaceutical R&D teams focused on metabolic engineering, antimicrobial target discovery, and the development of novel biosensors.

Application

• Biochemical Research: Fundamental studies on amino acid transport kinetics, substrate specificity, and protein-ligand interactions.
• Membrane Protein Studies: Used as a model protein for investigating the structure, folding, and insertion mechanisms of integral membrane proteins.
• Drug Discovery & Target Validation: Screening and validation platform for identifying novel antimicrobial compounds that inhibit essential bacterial nutrient uptake systems.
• Metabolic Engineering: A key component in synthetic biology projects aimed at optimizing microbial cell factories for the production of tryptophan-derived compounds.
• Educational & Diagnostic Kit Development: Serves as a standard or active component in advanced educational kits and diagnostic assays for teaching and research.

Basic Information

Product Name	Low Affinity Tryptophan Permease, E Coli
CAS No.	55126-97-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Tryptophan Permease (Low Affinity); TnaB; *E. coli* Tryptophan Transporter; Low-Affinity Tryptophan-Specific Permease; Amino Acid Transporter TnaB; EC 55126-97-1; Membrane Transport Protein TnaB
EINECS	Contact for details

Quality Control

Our Low Affinity Tryptophan Permease, E Coli is produced and handled under stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and functional activity. A comprehensive Certificate of Analysis (COA) detailing purity (by SDS-PAGE or HPLC), protein concentration, and functional assay results is provided to guarantee consistency and reliability for your research. We adhere to ISO 9001 standards to ensure traceability and quality assurance from production to delivery.

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); ensure containers are sealed tightly after each use to prevent moisture absorption. For short-term use, aliquoting is recommended to avoid repeated freeze-thaw cycles.

Specification

Item	Specification
Appearance	Lyophilized powder or solution
Identification (SDS-PAGE)	Single major band at expected molecular weight
Purity (HPLC)	≥ 90%
Protein Concentration	As per COA
Biological Activity	Functional assay available (e.g., transport assay)
Endotoxin Level	< 1.0 EU/µg (if applicable)
Solubility	Reconstitutes in suitable buffer (e.g., Tris-HCl, PBS with detergent)

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