phycobilisome


phycobilisome
An accessory light energy harvesting structure in cyanobacteria. They have cores of allophycocyanin with radiating rods composed of discs of phycocyanin and phycoerythrin. Linker polypeptides attach the core to the thylakoid membranes. These structures, 20-70nm across, contain the pigments named above that transfer light energy to chlorophyll a. The pigments are extracted and used as fluorochromes for labelling various probe reagents.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

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  • Phycobilisome — Phycobilisomes are light harvesting antennae of photosystem II in cyanobacteria, red algae and glaucophytes. General structure Phycobilisomes are protein complexes (up to 600 polypeptides) anchored to thylakoid membranes. They are made of stacks… …   Wikipedia

  • phycobilisome — noun A light harvesting antenna in cyanobacteria, red algae and glaucophytes …   Wiktionary

  • phycobilisome — …   Useful english dictionary

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  • Light-harvesting complex — A light harvesting complex is one or more polypeptide chains containing photosynthetic pigments, which surrounds a photosynthetic reaction centre and focuses energy, attained from photons absorbed by the pigment, inward toward the reaction centre …   Wikipedia

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  • Cyanobacteria — Temporal range: 3500–0 Ma Had n Archean …   Wikipedia


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