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Gene Review:

psbZ - photosystem II reaction center Z protein

Nicotiana tabacum

Ruf, S. et al., Baena-Gonzalez, E. et al., Swiatek, M. et al., Mäenpää, P. et al.

Mäenpää, Gonzalez, Chen, Khan, Gray, Aro,

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High impact information on psbZ

This allele was introduced into the tobacco plastid genome by biolistic transformation to replace the wild-type ycf9 allele [1].
Homoplasmic ycf9 knockout plants displayed no phenotype under normal growth conditions [1].
A small conserved open reading frame in the plastid genome, ycf9, encodes a putative membrane protein of 62 amino acids [1].
To determine the function of this reading frame we have constructed a knockout allele for targeted disruption of ycf9 [1].
Abnormal regulation of photosynthetic electron transport in a chloroplast ycf9 inactivation mutant [2].

Biological context of psbZ

We have characterized the biochemical nature and the function of PsbZ, the protein product of a ubiquitous open reading frame, which is known as ycf9 in Chlamydomonas and ORF 62 in tobacco, that is present in chloroplast and cyanobacterial genomes [3].

Anatomical context of psbZ

The ycf 9 (orf 62) gene in the plant chloroplast genome encodes a hydrophobic protein of stromal thylakoid membranes [4].

Associations of psbZ with chemical compounds

On the other hand, it was less susceptible to photodamage than the wild type. ycf9 inactivation resulted in a clear reduction in protein amounts of CP26, the NAD(P)H dehydrogenase complex, and the plastid terminal oxidase [2].

References

A small chloroplast-encoded protein as a novel architectural component of the light-harvesting antenna. Ruf, S., Biehler, K., Bock, R. J. Cell Biol. (2000) [Pubmed]
Abnormal regulation of photosynthetic electron transport in a chloroplast ycf9 inactivation mutant. Baena-Gonzalez, E., Gray, J.C., Tyystjarvi, E., Aro, E.M., Maenpaa, P. J. Biol. Chem. (2001) [Pubmed]
The chloroplast gene ycf9 encodes a photosystem II (PSII) core subunit, PsbZ, that participates in PSII supramolecular architecture. Swiatek, M., Kuras, R., Sokolenko, A., Higgs, D., Olive, J., Cinque, G., Müller, B., Eichacker, L.A., Stern, D.B., Bassi, R., Herrmann, R.G., Wollman, F.A. Plant Cell (2001) [Pubmed]
The ycf 9 (orf 62) gene in the plant chloroplast genome encodes a hydrophobic protein of stromal thylakoid membranes. Mäenpää, P., Gonzalez, E.B., Chen, L., Khan, M.S., Gray, J.C., Aro, E.M. J. Exp. Bot. (2000) [Pubmed]

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