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Posttranslational modifications (PTMs) play a crucial role in a wide range of biological processes. Lysine crotonylation (Kcr) is a newly discovered histone PTM that is enriched at active gene promoters and potential enhancers in mammalian cell genomes. However, the cellular enzymes that regulate the addition and removal of Kcr are unknown, which has(More)
At present, acid rain has become one of the top ten global environmental issues. Acid rain causes slower growth, injury, or decline of forests. Some dramatic effects on forests have been observed in south China since the late 1970s and the situation is deteriorating. We carried out a comparative proteomic analysis on Pinus massoniana Lamb, a staple tree(More)
It is estimated that 925 million people mainly in developing countries suffer from malnutrition due to food shortage. This situation will deteriorate as world population will reach 9 billion by 2050. It is obvious that current rate of increase in crop yields is not sufficient to solve the problem of food security worldwide, especially in Asia, where at(More)
Acylation of proteins with fatty acids is important for the regulation of membrane association, trafficking, subcellular localization, and activity of many cellular proteins. While significant progress has been made in our understanding of the two major forms of protein acylation with fatty acids, N-myristoylation and S-palmitoylation, studies of the(More)
The organization of the higher order structure of chromatin in chicken erythrocytes has been examined with tapping-mode scanning force microscopy under conditions close to their native environment. Reproducible high-resolution AFM images of chromatin compaction at several levels can be demonstrated. An extended beads-on-a-string (width of ∼ 15-20nm, height(More)
During exposure to salt environments, plants could perceive salt signal and transmit the signal to cellular machinery to activate adaptive responses. In bryophytes, salt signal components and transcript factor identified suggest that salt activate adaptive responses to tolerate adverse environments. The ability of bryophytes to tolerate salt is determined(More)
Carotenoids are a naturally occurring and widely distributed group of pigments that provide protection against photooxidation and inactivate free radicals due to their highly conjugated double-bond systems. Phytoene dehydrogenation is the first rate-limiting step in the carotenoid biosynthetic pathway. Phytoene dehydrogenase is the key enzyme in the(More)
Compared with C3 plants, C4 plants possess a mechanism to concentrate CO2 around the ribulose-1,5-bisphosphate carboxylase/oxygenase in chloroplasts of bundle sheath cells so that the carboxylation reaction work at a much more efficient rate, thereby substantially eliminate the oxygenation reaction and the resulting photorespiration. It is observed that C4(More)
Post translational modifications (PTMs, e.g., phosphorylation, acetylation and methylation) of histone play important roles in regulating many fundamental cellular processes such as gene transcription, DNA replication and damage repair. While ‘writer’ and ‘eraser’ enzymes modify histones by catalyzing the addition and removal of histone PTMs, ‘reader’(More)