Subunit composition and chromophore content of R-phycoerythrin fromPorphyra haitanensis

Gao Hong-feng; Ji Ming-hou; Cao Wen-da

doi:10.1007/BF02850538

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Subunit composition and chromophore content of R-phycoerythrin fromPorphyra haitanensis

Updated：2023-05-16

- Subunit composition and chromophore content of R-phycoerythrin fromPorphyra haitanensis
- Journal of Oceanology and Limnology Vol. 14, Issue 1, Pages: 36-40(1996)
- Affiliations：
  
  Institute of Oceanology
- Author bio：
- Funds：
- DOI：10.1007/BF02850538
  CLC：
- Published：1996
- Accepted：
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Hong-feng, G., Ming-hou, J. & Wen-da, C. Subunit composition and chromophore content of R-phycoerythrin fromPorphyra haitanensis, ., Chin. J. Ocean. Limnol. 14, 36–40 (1996). https://doi.org/10.1007/BF02850538
DOI：

Hong-feng, G., Ming-hou, J. & Wen-da, C. Subunit composition and chromophore content of R-phycoerythrin fromPorphyra haitanensis, ., Chin. J. Ocean. Limnol. 14, 36–40 (1996). https://doi.org/10.1007/BF02850538 DOI：

摘要

Abstract

R-phycoerythrin fromPorphyra haitanensis exists in two aggregation states with different molecular weights. A more highly aggregated form

RPE I

was chromatographed on Bio-Rex 70 column with urea solution (pH 3.0) as eluent

and the molecular weights of the 3 subunits (α

γ) obtained were determined on SDS-PAGE at 18000

19200 and 30000

respectively. α subunit carried two phycoerythrobilin (PEB); β subunit

three PEB and one phycourobilin (PUB); γ subunit

one PEB and three PUB chromophores. The molar ratio of α

and γ subunits of RPE I was 6: 6: 1

and their subunit composition was confired to be (αβ)6γ on account of the molecular weight of RPE I

232000. A lower aggregated form

RPE II

contained α and β subunits similar to those of RPE I

but its subunit composition was the (αβ) monomer of RPE.

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references

Bennitt, A., Bogorad, L., 1971. Properties of subunits and aggregates of blue-green algal biliproteins.Biochemistry 10: 3625–3634.

Gao Hongfeng, Cao Wenda, Ji Minghou, 1993. Studies on chemical properties and component of phycobiliproteins fromPorphyra haitanensis, Oceanologia et Limnologia Sinica 24: 350–355. (in Chinese with English abstract)

Glazer, A. N., 1984. Phycobilisome, a macromolecular complex optimized for light energy transfer.Biochim. Biophys. Acta 768: 29–51.

Lowry, O. H., Rosebrough, N. J., Lewis-Farr, A., 1951. Protein measurement with the Folin phenol reagent,J. Biological Chemistry 193: 265–275.

Stadnichuk, I. K., Odintsova, T. I., Strongin, A. T., 1984. Molecular organization and the pigment composition of R-phycoerythrin,Mol. Biol. 18: 271.

Van der Velde, H. H., 1973. Natural occurranccc in red algae of two phycoerythrins with different molecular weights and spectral properties,Biochim. Biophys. Acta 303(2): 246–257.

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Related Institution

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