We have successfully developed a system to produce full-length plant phytochrome assembled with phytochromobilin in Pichia pastoris by co-expressing apophytochromes and chromophore biosynthetic genes, heme oxygenase (HY1) and phytochromobilin synthase (HY2) from Arabidopsis. Affinity-purified phytochrome proteins from Pichia cells displayed zinc fluorescence indicating chromophore attachment. Spectroscopic analyses showed absorbance maximum peaks identical to in vitro reconstituted phytochromobilin-assembled phytochromes, suggesting that the co-expression system is effective to generate holo-phytochromes. Moreover, mitochondria localization of the phytochromobilin biosynthetic genes increased the efficiency of holophytochrome biosynthesis. Therefore, this system provides an excellent source of holophytochromes, including oat phytochrome A and Arabidopsis phytochrome B.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.febslet.2014.05.050 | DOI Listing |
Zool Res
January 2025
Institute of Preventive Medicine, School of Public Health, Dali University, Yunnan Key Laboratory of Screening and Research on Anti-pathogenic Plant Resources from Western Yunnan, Yunnan Key Laboratory of Zoonotic Disease Cross-border Prevention and Quarantine, Dali, Yunnan 671000, China. E-mail:
The family has seen an explosive expansion in its host range in recent years, yet the evolutionary trajectory of this zoonotic pathogen remains largely unknown. The emergence of rat hepatitis E virus (HEV) has introduced a new public health threat due to its potential for zoonotic transmission. This study investigated 2 464 wild small mammals spanning four animal orders, eight families, 21 genera, and 37 species in Yunnan Province, China.
View Article and Find Full Text PDFProtein Sci
February 2025
Department of Molecular Biology, University of Wyoming, Laramie, Wyoming, USA.
Organisms from all kingdoms of life depend on Late Embryogenesis Abundant (LEA) proteins to survive desiccation. LEA proteins are divided into broad families distinguished by the presence of family-specific motif sequences. The LEA_4 family, characterized by 11-residue motifs, plays a crucial role in the desiccation tolerance of numerous species.
View Article and Find Full Text PDFFront Plant Sci
January 2025
School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.
is a well-known plant used in oriental medicine plant, and is also serves as the primary traditional source of plant red dyestuffs. With the current depletion of natural resources of , it is critical to conduct cultivation studies on the . Here, we report on the dynamic growth characteristics and secondary metabolite accumulation of cultivated , as well as the discovery of important genes involved in anthraquinone biosynthesis.
View Article and Find Full Text PDFArch Insect Biochem Physiol
January 2025
Insect Molecular Genetics and Biotechnology, Institute of Biosciences and Applications, National Centre for Scientific Research "Demokritos", Athens, Greece.
The discovery that infections of viruses are pervasive among insects has considerable potential for future applications, such as new strategies for pest control through the manipulation of virus-host interactions. However, few studies can be found that aim to minimize (for beneficial insects) or maximize (for pests) virus impact or virulence. Viruses generally employ molecular mechanisms that deviate from the cells' to increase their replication efficiency and to avoid the immune response.
View Article and Find Full Text PDFCurr Microbiol
January 2025
ICAR-Indian Institute of Pulses Research, Kanpur, 208024, India.
Pigeonpea (Cajanus cajan L.) plants exhibiting symptoms of yellow mosaic disease (YMD) were collected in winter 2023 from multiple agricultural fields of Kanpur, Sehore, and Madhubani, representing three different agro-ecological zones in India. The recorded disease incidence ranged from 3 to 5%, 1 to 4%, and 12 to 20% in these zones, respectively.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!