Description

Crambin CAS NO 78783-34-3 is a small, stable plant protein derived from the seeds of *Crambe abyssinica*, widely recognized as a model system in structural biology and biophysical research. Its exceptional stability and well-defined structure make it an invaluable tool for studying protein folding, dynamics, and crystallization. This high-purity protein is essential for researchers and developers in academic institutions, biotechnology R&D, and pharmaceutical discovery programs.

Application

• Structural Biology Research: As a classic model protein for X-ray crystallography and NMR spectroscopy studies.
• Biophysical Studies: For investigating protein folding pathways, stability, and denaturation mechanisms.
• Method Development: Serving as a standard or control in developing new analytical techniques for protein characterization.
• Educational Use: Used in advanced biochemistry and molecular biology laboratory courses.
• Protein Engineering: As a scaffold for studying the effects of amino acid substitutions on structure and stability.
• Ligand-Binding Studies: Utilized in research exploring protein-small molecule interactions.

Basic Information

Product Name	Crambin
CAS No.	78783-34-3
Molecular Formula	C202H315N55O64S6
Molecular Weight	~4710.5 g/mol
Synonyms	Crambin Protein; Crambe Protein; Crambe abyssinica Seed Protein; Crambin (Crambe abyssinica); Crambin Trypsin Inhibitor; Abyssinian Crambe Protein; Plant Thionin; Crambin Model Protein
EINECS	Contact for details

Quality Control

Our Crambin is produced and handled under stringent quality management protocols to ensure batch-to-batch consistency and high purity suitable for research applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and other critical parameters. We adhere to ISO 9001 standards, and our quality systems are designed to support the traceability and reliability required for scientific research.

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 desiccator before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (HPLC/MS)	Conforms to reference standard
Purity (HPLC)	≥ 95%
Protein Content (Biuret)	≥ 90%
Water Content (KF)	≤ 5.0%
Biological Activity	Contact for details
Endotoxin Level (LAL)	< 10 EU/mg

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