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Gene Review:

ACHT4 - atypical CYS HIS rich thioredoxin 4

Arabidopsis thaliana

Synonyms: atypical CYS HIS rich thioredoxin 4

Rosado, A. et al., Lennartz, K. et al., Breitholtz, H.L. et al.

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Disease relevance of AT1G08570

HCF164 is closely related to the thioredoxin-like protein TxlA of Synechocystis sp PCC6803, most probably reflecting its evolutionary origin [1].
TTL1 regulates the transcript levels of several dehydration-responsive genes, such as the transcription factor DREB2A, and genes encoding dehydration response proteins, such as ERD1 (early response to dehydration 1), ERD3, and COR15a [2].

High impact information on AT1G08570

HCF164 encodes a thioredoxin-like protein that possesses disulfide reductase activity [1].
In this report, we identify TTL1 as a positive regulator of ABA signaling during germination and seedling development under stress [2].
Expression analyses of genes involved in abscisic acid (ABA) biosynthesis and catabolism suggest that TTL1 is not involved in the regulation of ABA levels but is required for ABA-regulated responses [2].
We have recently shown that, besides this activation, the LHC II kinase can be regulated in vitro by a thioredoxin-like component, and H2O2 that inserts an inhibitory loop in the regulation of LHC II protein phosphorylation in the chloroplast [3].

Biological context of AT1G08570

HCF164 encodes a thioredoxin-like protein involved in the biogenesis of the cytochrome b(6)f complex in Arabidopsis [1].

Associations of AT1G08570 with chemical compounds

The Arabidopsis Tetratricopeptide Repeat-Containing Protein TTL1 Is Required for Osmotic Stress Responses and Abscisic Acid Sensitivity [2].

References

HCF164 encodes a thioredoxin-like protein involved in the biogenesis of the cytochrome b(6)f complex in Arabidopsis. Lennartz, K., Plücken, H., Seidler, A., Westhoff, P., Bechtold, N., Meierhoff, K. Plant Cell (2001) [Pubmed]
The Arabidopsis Tetratricopeptide Repeat-Containing Protein TTL1 Is Required for Osmotic Stress Responses and Abscisic Acid Sensitivity. Rosado, A., Schapire, A.L., Bressan, R.A., Harfouche, A.L., Hasegawa, P.M., Valpuesta, V., Botella, M.A. Plant Physiol. (2006) [Pubmed]
LHC II protein phosphorylation in leaves of Arabidopsis thaliana mutants deficient in non-photochemical quenching. Breitholtz, H.L., Srivastava, R., Tyystjärvi, E., Rintamäki, E. Photosyn. Res. (2005) [Pubmed]

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