Home • Porphyridium purpureum CCMP1328

The Porphyridium purpureum CCMP1328 genome sequence and gene models were not determined by the Joint Genome Institute (JGI), but were downloaded from NCBI on April 29, 2022. In order to ensure this genome is comparable to those sequenced by the JGI, we applied filters to remove if present: 1) transposable elements, 2) pseudogenes, 3) alternative transcripts and overlapping models, 4) alleles on secondary scaffolds and 5) unsupported short models. This resulted in the removal of 1620 models from P. purpureum and the generation of the FilteredModels1 gene track (GeneCatalog). All published models are available in the ExternalModels track. Please note that this copy of the genome is not maintained by NCBI and is therefore not automatically updated. In order to allow comparative analyses with other algal genomes sequenced by the JGI, a copy of this genome is incorporated into PhycoCosm. The JGI Annotation Pipeline was used to add functional annotation to this genome.

Porphyridium purpureum CCMP1328 (also, referred to as Porphyridium cruentum) was originally isolated from Eel Pond in Woods Hole, Massachusetts. P. purpureum is a mesophilic, unicellular red marine alga belonging to the class Bangiophyceae. Their cells are spherical and lack cell walls [1]. It produces many valuable compounds such as extracellular sulfated polysaccharides, fluorescent phycobiliproteins, long-chain polyunsaturated fatty acids, carotenoids, vitamins, and phycoerythrin [2-5].


Genome Reference(s)


  1. Adda, M., Merchuk, J. C., & Arad, S. M. (1986). Effect of nitrate on growth and production of cell-wall polysaccharide by the unicellular red alga Porphyridium. Biomass, 10(2), 131-140.
  2. Wang, J., Chen, B., Rao, X., Huang, J., & Li, M. (2007). Optimization of culturing conditions of Porphyridium cruentum using uniform design. World Journal of Microbiology and Biotechnology, 23(10), 1345-1350.
  3. Huang, J., Chen, B., & You, W. (2001). Studies on separation of extracellular polysaccharide from Porphyridium cruentum and its anti-HBV activity in vitro. Chinese Journal of Marine Drugs.
  4. Huleihel, M., Ishanu, V., Tal, J., & Arad, S. M. (2001). Antiviral effect of red microalgal polysaccharides on Herpes simplex and Varicella zoster viruses. Journal of applied phycology, 13(2), 127-134.
  5. Velea, S., Ilie, L., & Filipescu, L. (2011). Optimization of Porphyridium purpureum culture growth using two variables experimental design: light and sodium bicarbonate. UPB Sci Bull Series B, 73(4), 81-94.