Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

The 15-kDa forms of the apo-peridinin-chlorophyll a protein (PCP) in dinoflagellates show high identity with the apo-32 kDa PCP forms, and have similar N-terminal leaders and gene arrangements

Abstract.

Full-length genomic sequences encoding apo-peridinin-chlorophyll a proteins (PCPs) from Heterocapsa pygmaea have been obtained by PCR. Two of the derived mature proteins of 150 residues have molecular masses of 15,795 and 15,780, respectively. Contrary to an earlier report, these show a high degree of identity (~70%) over the whole of both domains to the mature 32-kDa PCP forms. The two genes lack introns, are arranged in tandem and separated by 526 bp. A putative N-terminal extension with three domains characteristic of a signal sequence, a chloroplast-targeting sequence and a thylakoid lumen-directing sequence, is present. Modelling of the Heterocapsa PCP amino acid sequence on to the high-resolution structure available for Amphidinium PCP shows that the main differences between two forms are in trimer contact regions.

This is a preview of subscription content, log in to check access.

Author information

Additional information

Electronic Publication

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Hiller, .R., Crossley, .L., Wrench, .P. et al. The 15-kDa forms of the apo-peridinin-chlorophyll a protein (PCP) in dinoflagellates show high identity with the apo-32 kDa PCP forms, and have similar N-terminal leaders and gene arrangements. Mol Gen Genomics 266, 254–259 (2001). https://doi.org/10.1007/s004380100551

Download citation

  • Dinoflagellates Light-harvesting PCP Tandem gene arrangement Signal sequence