Browsing UMBC Biological Sciences Department by Title
Now showing items 1-20 of 406
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A MYC-PROTEIN KINASE A SIGNALING LOOP REGULATES MYC IN PROSTATE CANCER CELLS
(2012-01-01)MYC is frequently overexpressed in many human malignancies including prostate cancer. MYC accumulation is tightly regulated through transcriptional and post-translational mechanisms. Here, we demonstrate that a complex ... -
Accessory olfactory bulb function is modulated by input from the main olfactory epithelium
(Wiley, 2010-03-16)Although it is now established that sensory neurons in both the main olfactory epithelium and the vomeronasal organ may be activated by both general and pheromonal odorants, it remains unclear what initiates sampling by ... -
Acetylcholine and Acetylcholine Receptors in Taste Receptor Cells
(Oxford University Press, 2005-01-01) -
Acetylcholine Increases Intracellular Ca2+ in Taste Cells Via Activation of Muscarinic Receptors
(American Physiological Society (APS), 2002-06-01)Previous studies suggest that acetylcholine (ACh) is a transmitter released from taste cells as well as a transmitter in cholinergic efferent neurons innervating taste buds. However, the physiological effects on taste cells ... -
Acid-Activated Cation Currents in Rat Vallate Taste Receptor Cells
(American Physiological Society (APS), 2002-07-01)Sour taste is mediated by acids with the degree of sourness a function of proton concentration. Recently, several members of the acid-sensing ion channel subfamily (ASICs) were cloned from taste cells and proposed to mediate ... -
Activity Dependent Modulation of Granule Cell Survival in the Accessory Olfactory Bulb at Puberty
(Frontiers Media, 2020-05-23)The vomeronasal system (VNS) is specialized in the detection of salient chemical cues triggering social and neuroendocrine responses. Such responses are not always stereotyped, instead, they vary depending on age, sex, and ... -
Adaptive color vision in Pullosquilla litoralis (Stomatopoda, Lysiosquilloidea) associated with spectral and intensity changes in light environment
(The Company of Biologists Ltd, 2002-10-17)Some stomatopod crustacean species that inhabit a range of habitat depths have color vision systems that adapt to changes in ambient light conditions. To date, this change in retinal function has been demonstrated in species ... -
Adaptive signaling behavior in stomatopods under varying light conditions
(Taylor and Francis Online, 2009-09-07)Stomatopod crustaceans (mantis shrimp) are aggressive benthic marine predators with extraordinary color vision. When communicating with conspecifics, many stomatopods display conspicuously colored body areas, often in ... -
Aeons of distress: an evolutionary perspective on the bacterial SOS response
(Oxford Academic, 2007-11-01)Abstract The SOS response of bacteria is a global regulatory network targeted at addressing DNA damage. Governed by the products of the lexA and recA genes, it co-ordinates a comprehensive response against DNA lesions and ... -
Altered regulation of the glnA gene in glutamine synthetase mutants of Bacillus subtilis
(American Society for Microbiology, 1986-07-01)Expression of beta-galactosidase by Bacillus subtilis strains carrying transcriptional fusions of the glnA promoter region to the Escherichia coli lacZ gene was found to be regulated by the nitrogen source in glnA+ strains. ... -
Altered regulation of the glnRA operon in a Bacillus subtilis mutant that produces methionine sulfoximine-tolerant glutamine synthetase
(American Society for Microbiology, 1993-02)A Bacillus subfilis mutant that produced glutamine synthetase (GS) with altered sensitivity to DL-methionine sulfoximine was isolated. The mutation, designated glnA33, was due to a T- A-to-C- G transition, changing valine ... -
Alternate pathways for processing in the internal transcribed spacer 1 in pre-rRNA of Saccharomyces cerevisiae
(Oxford University Press, 1994-12-11)We have extended the system of Nogi et al. (Proc. Natl. Acad. Sci. USA 88, 1991, 3962-3966) for transcription of rRNA from an RNA polymerase II promoter in strains lacking functional RNA polymerase I. In our strains two ... -
Anaerobic Ammonia-Oxidizing Bacteria and Related Activity in Baltimore Inner Harbor Sediment
(American Society for Microbiology, 2005-04)The discovery of bacteria capable of anaerobic ammonia oxidation (anammox) has generated interest in understanding the activity, diversity, and distribution of these bacteria in the environment. In this study anammox ... -
Analysis of cell cycle parameters during the transition from unhindered growth to ribosomal and translational stress conditions
(PLOS, 2017-10-13)Abrogation of ribosome synthesis (ribosomal stress) leads to cell cycle arrest. However, the immediate cell response to cessation of ribosome formation and the transition from normal cell proliferation to cell cycle arrest ... -
Analysis of the Bacillus subtilis S10 ribosomal protein gene cluster identifies two promoters that may be responsible for transcription of the entire 15-kilobase S10-spc-alpha cluster
(American Society for Microbiology, 1997-11)We have sequenced a previously uncharacterized region of the Bacillus subtilis S10 ribosomal protein gene cluster. The new segment includes genes for S10, L3, L4, L23, L2, S19, L22, S3, and part of L16. These B. subtilis ... -
Analysis of the SOS response of Vibrio and other bacteria with multiple chromosomes
(BMC, 2012-02-03)Background The SOS response is a well-known regulatory network present in most bacteria and aimed at addressing DNA damage. It has also been linked extensively to stress-induced mutagenesis, virulence and the emergence ... -
ANCESTRAL STATE RECONSTRUCTION OF MIGRATION: MULTISTATE ANALYSIS REVEALS RAPID CHANGES IN NEW WORLD ORIOLES (ICTERUS SPP.)
(The American Ornithologists' Union, 2006-03-20)During the past century, numerous theoretical articles explored the evolution of seasonal migration in birds; many of these focused on environmental or social conditions that may have led to the origin of migration. More ... -
As the raven flies: using genetic data to infer the history of invasive common raven (Corvus corax) populations in the Mojave Desert
(Blackwell Publishing Ltd, 2007-10-01)Common raven (Corvus corax) populations in Mojave Desert regions of southern California and Nevada have increased dramatically over the past five decades. This growth has been attributed to increased human development in ... -
Assessing the Age-Specific Phagocytic Ability of Adult Drosophila melanogaster Hemocytes using an In Vivo Phagocytosis Assay
(JOVE, 2020-06-11)Phagocytosis is an essential function of the innate immune response. This process is carried out by phagocytic hemocytes whose primary function is to recognize a wide range of particles and destroy microbial pathogens. As ... -
Assessment of transfer methods for comparative genomics of regulatory networks in bacteria
(BMC, 2016-08-31)Background Comparative genomics can leverage the vast amount of available genomic sequences to reconstruct and analyze transcriptional regulatory networks in Bacteria, but the efficacy of this approach hinges on the ability ...