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. 1990 Apr;92(4):1241–1243. doi: 10.1104/pp.92.4.1241

ChrA Is a Carotenoid-Binding Protein in Chromoplasts of Capsicum annuum1

Miguel Cervantes-Cervantes 1,2, Nouréddine Hadjeb 1,3, Lee A Newman 1,4, Carl A Price 1
PMCID: PMC1062442  PMID: 16667396

Abstract

Chromoplasts of Capsicum annuum var Albino contain a carotenoid-protein complex, which migrates as a brilliant orange band in gels under conditions of nondenaturing electrophoresis. In a second, denaturing separation, the complex resolves into a principal protein (ChrA) of 58 kilodaltons and several minor proteins of 20 to 55 kilodaltons, which may be adventitiously associated. Analysis of Western blots of both one- and two-dimensional gels showed that the principal protein component of the carotenoid complex is ChrA, a protein previously shown to be located specifically in chromoplast membranes. The identification of ChrA as a carotenoid-binding protein appears to be the first instance of a nonthylakoid, carotenoid-binding protein in higher plants.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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