TY - JOUR
T1 - Cloning and characterization of the psaE gene of the cyanobacterium Synechococcus sp. PCC 7002
T2 - characterization of a psaE mutant and overproduction of the protein in Escherichia coli
AU - Zhao, J.
AU - Snyder, W. B.
AU - Mühlenhoff, U.
AU - Rhiel, E.
AU - Warren, P. V.
AU - Golbeck, J. H.
AU - Bryant, D. A.
PY - 1993/7
Y1 - 1993/7
N2 - The psaE gene, encoding a 7.5 kDa peripheral protein of the photosystem I complex, has been cloned and characterized from the cyanobacterium Synechococcus sp. PCC 7002. The gene is transcribed as an abundant monocistronic transcript of approximately 325 nt. The PsaE protein has been overproduced in Escherichia coli, purified to homogeneity, and used to raise polyclonal antibodies. Mutant strains, in which the psaE gene was insertionally inactivated by interposon mutagenesis, were constructed and characterized. Although the PS I complexes of these strains were similar to those of the wild type, the strains grew more slowly under conditions which favour cyclic electron transport and could not grow at all under photoheterotrophic conditions. The results suggest that PsaE plays a role in cyclic electron transport in cyanobacteria.
AB - The psaE gene, encoding a 7.5 kDa peripheral protein of the photosystem I complex, has been cloned and characterized from the cyanobacterium Synechococcus sp. PCC 7002. The gene is transcribed as an abundant monocistronic transcript of approximately 325 nt. The PsaE protein has been overproduced in Escherichia coli, purified to homogeneity, and used to raise polyclonal antibodies. Mutant strains, in which the psaE gene was insertionally inactivated by interposon mutagenesis, were constructed and characterized. Although the PS I complexes of these strains were similar to those of the wild type, the strains grew more slowly under conditions which favour cyclic electron transport and could not grow at all under photoheterotrophic conditions. The results suggest that PsaE plays a role in cyclic electron transport in cyanobacteria.
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U2 - 10.1111/j.1365-2958.1993.tb01680.x
DO - 10.1111/j.1365-2958.1993.tb01680.x
M3 - Article
C2 - 8412664
AN - SCOPUS:0027274754
SN - 0950-382X
VL - 9
SP - 183
EP - 194
JO - Molecular Microbiology
JF - Molecular Microbiology
IS - 1
ER -