Results 261 to 270 of about 71,707 (290)

Gene Expression Divergence Between Locally Adapted Inland Annual and Coastal Perennial Ecotypes of Mimulus guttatus Across Developmental Stages

Molecular Ecology, EarlyView.
ABSTRACT The action of natural selection across heterogeneous natural landscapes drives local adaptation and the formation of plant ecotypes, the precursors to new species. Plant ecotypes typically differ significantly in morphology, physiology, and development, yet our understanding of their underlying genetic basis remains limited.
Jason D. Olsen, Billie A. Gould, Yani Chen, David B. Lowry   +3 more
wiley   +1 more source

A Small RNA Derived From the 5′ End of the IS200 tnpA Transcript Regulates Multiple Virulence Regulons in Salmonella typhimurium

Molecular Microbiology, EarlyView.
We show deletion of an IS200‐encoded sRNA (5′tnpA) in Salmonella impacts the expression of SPI‐1, flagellar, cysteine, and phsABC regulons. Evidence is presented that, with regard to the SPI‐1 regulon, 5′tnpA may function through base pairing with another sRNA known to regulate SPI1 called PinT.
Ryan S. Trussler, Naomi‐Jean Q. Scherba, Hoda Kooshapour, Michael J. Ellis, Konrad U. Förstner, Matthew Albert, Alexander J. Westermann, David B. Haniford   +7 more
wiley   +1 more source

Blue light‐induced stomatal opening is associated with species‐specific changes in primary metabolism but not with starch breakdown in guard cells

New Phytologist, EarlyView.
Summary Blue light (BL)‐induced stomatal opening has been associated with starch breakdown within Arabidopsis guard cells (GCs). However, whether this mechanism is conserved in angiosperms and which metabolic pathways are activated downstream of BL perception and/or starch degradation, remains unknown.
Humaira Bahadar, Eva Gomes Morais, Francisco Bruno S. Freire, Valéria F. Lima, Marina Ellen Giacomelli, Leticia dos Anjos, Werner Camargos Antunes, Danilo M. Daloso   +7 more
wiley   +1 more source

Acetyl‐methyllysine: A new posttranslational modification used to mark chromatin

MedComm – Future Medicine
Hua Guo, Fangfang Zhou, Long Zhang
doaj   +1 more source

Probing Posttranslational Redox Modifications [PDF]

, 2017
Reactive molecular species (RMS) can damage DNA, lipids, and proteins but as signaling molecules they also affect the regulatory state of the cell. RMS consist of reactive oxygen (ROS), nitrogen (RNS), and carbonyl species (RCS). Besides their potentially destructive nature, RMS are able to modify proteins at the posttranslational level, resulting in ...
Treffon, Patrick, Liebthal, Michael, Telman, Wilena, Dietz, Karl-Josef, Sunkar, Ramanjulu   +4 more
openaire   +3 more sources

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Posttranslational modifications in systems biology

2021
The biological complexity cannot be captured by genes or proteins alone. The protein posttranslational modifications (PTMs) impart functional diversity to the proteome and regulate protein structure, activity, localization and interactions. Their dynamics drive cellular signaling, growth and development while their dysregulation causes many diseases ...
Amit Kumar Yadav, Srishti Gupta, Priya Tolani, Suruchi Aggarwal   +3 more
openaire   +3 more sources

Posttranslational Modifications of Enzymes

1978
Publisher Summary This chapter describes enzyme alterations in some selected systems. The isocitrate lyase from old Turbatrix aceti ( T. aceti ) consists of a mixture of active and inactive molecules. The nematode T. aceti , the eye lens, and red blood cells are the systems that allow recognition of the most frequent and unequivocal postsynthetic ...
Axel Kahn, Jean-Claude Dreyfus, Fanny Schapira   +2 more
openaire   +3 more sources

ANTIBIOTICS SYNTHESIZED BY POSTTRANSLATIONAL MODIFICATION

Annual Review of Microbiology, 1993
Peptides that have antimicrobial activity are synthesized by many prokaryotic and eukaryotic organisms. Antimicrobial peptides commonly contain unusual amino acids that contribute to their properties and functions. Although bacteria synthesize most of these peptides by nonribosomal mechanisms, this review focuses on those that are synthesized by ...
openaire   +3 more sources

Posttranslational Modifications

1998
Publisher Summary This chapter describes posttranslational modifications of proteins. A number of short peptides, such as hormones and neuropeptides, are synthesized as multifunctional large polypeptide precursors whose sequences are encoded by mRNA and are assembled by the regular ribosomal synthetic apparatus. There are short polypeptide antibiotics
Finn Wold, Radha G. Krishna
openaire   +2 more sources

Posttranslational modification of prothyroid hormone

Canadian Journal of Biochemistry and Cell Biology, 1983
Posttranslational processing of thyroglobulin may influence its role as the prothyroid hormone. We have examined the role of glycosylation in the subsequent export and iodination of thyroglobulin. We find that glycosylation is necessary both for the movement of thyroglobulin through the cell and for iodination.
G. N. Burrow, D. Drucker, R. Cheifetz, M. C. Eggo   +3 more
openaire   +3 more sources