Literature DB >> 2186925

Photosystem I reaction-centre proteins contain leucine zipper motifs. A proposed role in dimer formation.

A N Webber1, R Malkin.   

Abstract

The photosystem I (PS I) reaction-centre polypeptides, encoded by the psaA and psaB genes, are shown to contain several highly conserved leucine repeats, consisting of a leucine residue every seventh amino acid, similar to the leucine zipper motifs known to mediate DNA-binding polypeptide dimerisation. In each of the PSI reaction-centre subunits the leucine zipper motif precedes highly conserved cysteine residues which have been proposed to ligate the interpolypeptide [4Fe-4S] centre, Fx. We propose that PS I reaction-centre dimerisation and [4Fe-4S] centre formation are mediated through the leucine zipper.

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Year:  1990        PMID： 2186925     DOI： 10.1016/0014-5793(90)80749-9

Source DB:  PubMed          Journal:  FEBS Lett        ISSN： 0014-5793            Impact factor:   4.124


  16 in total

1.  Drosophila melanogaster paramyosin: developmental pattern, mapping and properties deduced from its complete coding sequence.

Authors:  J Vinós; M Maroto; R Garesse; R Marco; M Cervera
Journal:  Mol Gen Genet       Date:  1992-02

2.  Nucleotide sequences of the psaA and psaB genes encoding the photosystem I core proteins from the thermophilic cyanobacterium Synechococcus vulcanus.

Authors:  T Shimizu; T Hiyama; M Ikeuchi; Y Inoue
Journal:  Plant Mol Biol       Date:  1992-02       Impact factor: 4.076

Review 3.  The chloroplast genome.

Authors:  M Sugiura
Journal:  Plant Mol Biol       Date:  1992-05       Impact factor: 4.076

4.  Assembly of Two Subunits of the Cyanobacterial Photosystem I on the n-Side of Thylakoid Membranes.

Authors:  P R Chitnis; N Nelson
Journal:  Plant Physiol       Date:  1992-05       Impact factor: 8.340

5.  Expression of photosynthesis genes in the cyanobacterium Synechocystis sp. PCC 6803: psaA-psaB and psbA transcripts accumulate in dark-grown cells.

Authors:  L B Smart; L McIntosh
Journal:  Plant Mol Biol       Date:  1991-11       Impact factor: 4.076

6.  Dynamics of the history of photosynthesis research.

Authors:  H Huzisige; B Ke
Journal:  Photosynth Res       Date:  1993-11       Impact factor: 3.573

7.  Function and organization of Photosystem I polypeptides.

Authors:  P R Chitnis; Q Xu; V P Chitnis; R Nechushtai
Journal:  Photosynth Res       Date:  1995-05       Impact factor: 3.573

8.  Sequence similarity between Photosystems I and II. Identification of a Photosystem I reaction center transmembrane helix that is similar to transmembrane helix IV of the D2 subunit of Photosystem II and the M subunit of the non-sulfur purple and flexible green bacteria.

Authors:  M M Margulies
Journal:  Photosynth Res       Date:  1991-09       Impact factor: 3.573

9.  Genetic inactivation of the psaB gene in Synechocystis sp. PCC 6803 disrupts assembly of photosystem I.

Authors:  L B Smart; L McIntosh
Journal:  Plant Mol Biol       Date:  1993-01       Impact factor: 4.076

10.  Mutational analysis of the structure and biogenesis of the photosystem I reaction center in the cyanobacterium Synechocystis sp. PCC 6803.

Authors:  L B Smart; P V Warren; J H Golbeck; L McIntosh
Journal:  Proc Natl Acad Sci U S A       Date:  1993-02-01       Impact factor: 11.205
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