Description

Cytochrome B559 CAS NO 9044-61-5 is a vital heme-containing protein component of the Photosystem II (PSII) complex in plants, algae, and cyanobacteria. Its primary role is in the electron transport chain of photosynthesis, where it contributes to the stabilization and protection of the reaction center from photodamage. This makes it an essential biochemical reagent for researchers in plant physiology, biochemistry, and molecular biology studying photosynthetic mechanisms, oxidative stress, and protein function.

Application

• Photosynthesis Research: Fundamental studies on electron transfer mechanisms and the function of Photosystem II (PSII).
• Enzymology & Protein Biochemistry: Investigation of heme-protein interactions, redox properties, and protein structure-function relationships.
• Plant Physiology & Stress Response: Research into photoinhibition and the protective role of Cytochrome B559 under high-light or oxidative stress conditions.
• Bioenergetics: Used in reconstitution experiments to study the assembly and stability of the photosynthetic apparatus.
• Educational & Reference Standard: Serves as a high-purity standard in academic teaching labs and for calibrating analytical methods in related research.
• Biomimetic Systems: Potential component in the development of artificial photosynthetic systems for solar energy conversion.

Basic Information

Product Name	Cytochrome B559
CAS No.	9044-61-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Cytochrome b-559; Cytochrome B-559; Cyt b559; Photosystem II cytochrome b559; Low-potential cytochrome b559; High-potential cytochrome b559; Cytochrome b-559 HP; Cytochrome b-559 LP
EINECS	Contact for details

Quality Control

Our Cytochrome B559 is produced and handled under controlled conditions to ensure high purity and biological activity. Each batch undergoes rigorous analytical testing, including spectroscopic analysis for heme content and purity assessment. Certificates of Analysis (COA) detailing purity, spectral characteristics, and other relevant parameters are available upon request to support your research and compliance needs.

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. Handle under inert conditions where applicable to preserve redox state and activity.

Specification

Item	Specification
Appearance	Dark red to brown lyophilized powder or solution
Purity (HPLC)	> 90% (Contact for specific grade)
Identification (UV-Vis)	Spectrum characteristic of heme protein
Activity (if applicable)	Contact for details
Protein Content	Determined by Bradford or similar method
Solubility	Soluble in appropriate aqueous buffers

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