Results 51 to 60 of about 58,724 (260)

Large‐Scale Genomics Reveals Three‐Source Ancestry and Layered Adaptation to High Altitude in Tibetan Chickens

open access: yesAdvanced Science, EarlyView.
Whole‐genome analysis of 1,054 chickens reveals three ancestral sources (NWC, SYA, and SHF) with distinct temporal entry patterns into the Tibetan Plateau. Route‐specific selection scans, calibrated against a demographic null, suggest complementary functional enrichments—vascular homeostasis (NWC), calcium signaling and cardiac adaptation (SYA), and ...
Zongyi Zhao   +7 more
wiley   +1 more source

Radiasi Sinar Ultra Violet Strain Aspergillus Oryzae Untuk Meningkatkan Produksi Alfa Amilase [PDF]

open access: yes, 1995
Mutation of Aspergillus oryzae was carried out by ultra violet irradiation at 254 nm. The mutans obtained with 0, 10, 20,30, 40 and 50 minutes irradiation were screened for their amylolytic activity and alpha amylase production.
Karossi, A. T. (A)   +2 more
core  

A distinct sortase SrtB anchors and processes a streptococcal adhesin AbpA with a novel structural property. [PDF]

open access: yes, 2016
Surface display of proteins by sortases in Gram-positive bacteria is crucial for bacterial fitness and virulence. We found a unique gene locus encoding an amylase-binding adhesin AbpA and a sortase B in oral streptococci.
Haase, EM   +6 more
core   +1 more source

Liver Kinase B1 in CD11c+ Cells Inhibits Fibrosis in Chronic Pancreatitis via the Oncostatin M Signaling

open access: yesAdvanced Science, EarlyView.
This study demonstrates significantly reduced Lkb1 expression in CD11c+ cells in chronic pancreatitis (CP) patients and animal models. Lkb1 deletion enhances CD11c+CD206+ macrophage infiltration and reprograms pancreatic stellate cells (PSCs) via OSM signaling.
Wenqing Zhang   +10 more
wiley   +1 more source

Assessing the Role of Salivary Alpha-Amylase in Dental Caries in Children aged 6–9 Years – A Cross-sectional Study

open access: yesJournal of Integrated Health Sciences
Introduction: Salivary alpha-amylase is an enzymatic powerhouse, breaking down starch in food and whisking it away from the oral cavity. Its presence in the acquired enamel pellicle hints at involvement in the adhesion of α-amylase-binding bacteria. This
Monika Surana   +2 more
doaj   +1 more source

Development of an improved Pseudoalteromonas haloplanktis TAC125 strain for recombinant protein secretion at low temperature [PDF]

open access: yes, 2008
Background: In a previous paper, we reported the accomplishment of a cold gene-expression system for the recombinant secretion of heterologous proteins in Pseudoalteromonas haloplanktis TAC125.
CIRULLI C.   +3 more
core   +1 more source

AS‐pHopt: An Optimal pH Prediction Model Enhanced by Active Site of Enzymes

open access: yesAdvanced Intelligent Discovery, EarlyView.
To address the low accuracy of enzyme optimal pH (pHopt) prediction, this study develops active site‐based pHopt (AS‐pHopt), a prediction model enhanced by active site information and pseudo‐label prediction. Integrating key structural and physicochemical features affecting enzyme pHopt, AS‐pHopt uses Evolutionary Scale Modeling (ESM)‐2 with active ...
Wenxiang Song   +6 more
wiley   +1 more source

Comparison of salivary alpha-amylase levels in gingivitis and periodontitis

open access: yesDental Journal, 2017
Background: The development of periodontal disease is influenced by bacteria-plaque, while there are also several factors modifying the host’s response, one of which is psychological stress.
Dyah Nindita Carolina   +2 more
doaj   +1 more source

Inhibition mechanism of alpha-amylase, a diabetes target, by a steroidal pregnane and pregnane glycosides derived from Gongronema latifolium Benth

open access: yesFrontiers in Molecular Biosciences, 2022
Alpha-amylase is widely exploited as a drug target for preventing postprandial hyperglycemia in diabetes and other metabolic diseases. Inhibition of this enzyme by plant-derived pregnanes is not fully understood.
Oludare M. Ogunyemi   +13 more
doaj   +1 more source

Stimulation of bioprocesses by ultrasound [PDF]

open access: yes, 2011
Ultrasound (US) has become a ubiquitous technological process in a large variety of scientific disciplines. However, little information exists on the use of ultrasound to enhance biological processes and/or processing and consequently this paper provides
Akunna, Joseph C.   +4 more
core   +3 more sources

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