Description

Corn Cystatin I is a cysteine protease inhibitor protein derived from maize (Zea mays). This compound is of significant interest in biochemical and pharmaceutical research for its role in regulating proteolytic activity. It serves as a critical reagent for scientists studying plant defense mechanisms, enzyme kinetics, and the development of therapeutic agents targeting cysteine proteases. Key industries that utilize this high-purity biochemical include life science research, diagnostic development, and the nutraceutical sector.

Application

• Biochemical Research: Used as a standard or inhibitor in studies of cysteine protease enzymes like papain, cathepsins, and calpains.
• Pharmaceutical Development: Investigated for its potential therapeutic applications in conditions involving excessive proteolysis, such as inflammatory diseases and certain cancers.
• Diagnostic Reagent Manufacturing: Incorporated into assay kits and diagnostic tests that require specific protease inhibition for accurate measurement.
• Plant Science Studies: Serves as a model protein for researching plant-pathogen interactions and natural defense systems in crops.
• Food Science & Nutraceuticals: Explored for its functional properties and potential health benefits as a natural protease inhibitor derived from corn.
• Enzyme Purification & Characterization: Employed in affinity chromatography and other techniques to isolate and study specific cysteine proteases.

Basic Information

Product Name	Corn Cystatin I
CAS No.	148466-75-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Maize Cystatin I; CC-I; Corn Cystatin; Zeamatin (related protein, often used interchangeably in literature); Zea mays Cystatin I; Phytocystatin from Corn; Cysteine Protease Inhibitor from Maize; Plant Cystatin I
EINECS	Contact for details

Quality Control

Our Corn Cystatin I is produced under stringent quality management protocols to ensure batch-to-batch consistency and high biological activity. Each lot is subjected to comprehensive analytical testing, including purity assessment by HPLC and functional activity assays. A detailed Certificate of Analysis (COA), providing full specifications and test results, is supplied with every shipment to guarantee compliance with your research and development requirements.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated) or as indicated on the label or COA. This product is hygroscopic (moisture-sensitive); ensure the container is kept sealed in a dry environment to maintain stability and prevent degradation.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Protein Content (Biuret)	≥ 90%
Biological Activity	≥ 90% of reference standard
Water Content (KF)	≤ 5.0%
Endotoxin (LAL)	< 1.0 EU/mg

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