PCC7421 strain


  • Prokarya
    • Cyanobacteria
      • Chroococcales
        • Gloeobacter
          • violaceus

Strain information

Phycobiliprotein types: PC+PEI

Pigment type: 2

Habitat: Rock

Remark: The chromophorylation of the PE of this strain is controversial. Indeed Bryant et al. (1981) reported that the alpha subunit would bind 3 PEB and the beta subunit 3 PEB and one PUB, whereas CpeA and CpeB sequences have no additional binding sites as other PEs. No obvious candidate for a lyase-isomerase was found in this genome.

Genome sequence

Refseq record: NC_005125

Genome status: complete

Sequencing center: Kazusa


  • Bryant et al., 1981. Characterization of the biliproteins of Gloeobacter violaceus: Chromophore content of a cyanobacterial phycoerythrin carrying phycourobilin chromophore Archiv Microbiol, 129, 190- 198.
  • Nakamura et al., 2003. Complete genome structure of Gloeobacter violaceus PCC 7421, a cyanobacterium that lacks thylakoids DNA Res, 10, 137-145.

Showing only sure genes

Gene Locus tag Genbank Remark Length Last change
CpcT family glr1182 NP_924128.1 202 11-01-2012
CpcU-I subfamily glr1614 NP_924560.1 212 09-26-2011
CpcV family gll1531 NP_924477.1 174 09-26-2011
CpeT family gvip163 NP_924139.1 203 11-24-2011
CpeS-I subfamily gvip162 NP_924138.1 180 11-24-2011
CpeU-I subfamily glr1259 NP_924205.1 197 11-25-2011
CpeY family gvip158 NP_924134.1 428 11-24-2011
CpeZ family gvip157 NP_924133.1 204 11-24-2011
CpeF family gll1255 NP_924201.1 290 10-25-2011
IaiH family gll3007 NP_925953.1 240 10-26-2011
CotB family gvip178 NP_924203.1 217 11-24-2011
CpcE-I subfamily gvip185 NP_924214.1 247 12-06-2011
CpcF-I subfamily gvip186 NP_924215.1 193 12-06-2011
T homologs family glr1538 NP_924484.1 183 09-26-2011
NblB family gvip306 NP_925180.1 Blastp 215 11-24-2011
CpcS homologs family gll1024 NP_923970.1 N-term shortened (10 aa removed) 185 08-29-2012

Model strain Model strains, Marine strains

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