Spectrophotometric Determination of Phycobiliprotein Content in Cyanobacterium Synechocystis

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Publikace nespadá pod Filozofickou fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.

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ZAVŘEL Tomáš CHMELÍK Dominik SINETOVA Maria A. ČERVENÝ Jan

Rok publikování 2018
Druh Článek v odborném periodiku
Časopis / Zdroj JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://www.jove.com/video/58076/spectrophotometric-determination-phycobiliprotein-content
Doi http://dx.doi.org/10.3791/58076
Klíčová slova Biochemistry; Issue 139; Phycobilisomes; phycobilins; phycocyanobilins; phycocyanin; allophycocyanin; pigments; light harvesting; protein; cyanobacteria; algae; spectrophotometry; extraction
Popis This is a simple protocol for the quantitative determination of phycobiliprotein content in the model cyanobacterium Synechocystis. Phycobiliproteins are the most important components of phycobilisomes, the major light-harvesting antennae in cyanobacteria and several algae taxa. The phycobilisomes of Synechocystis contain two phycobiliproteins: phycocyanin and allophycocyanin. This protocol describes a simple, efficient, and reliable method for the quantitative determination of both phycocyanin and allophycocyanin in this model cyanobacterium. We compared several methods of phycobiliprotein extraction and spectrophotometric quantification. The extraction procedure as described in this protocol was also successfully applied to other cyanobacteria strains such as Cyanothece sp., Synechococcuselongatus, Spirulina sp., Arthrospira sp., and Nostoc sp., as well as to red algae Porphyridium cruentum. However, the extinction coefficients of specific phycobiliproteins from various taxa can differ and it is, therefore, recommended to validate the spectrophotometric quantification method for every single strain individually. The protocol requires little time and can be performed in any standard life science laboratory since it requires only standard equipment.
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