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Telomerase is a reverse transcriptase enzyme that carries its own RNA molecule (e.g., with the sequence 3′-CCCAAUCCC-5′ in Trypanosoma brucei) [3] which is used as a template when it elongates telomeres. Telomerase is active in gametes and most cancer cells, but is normally absent in most somatic cells.
Telomerase reverse transcriptase (abbreviated to TERT, or hTERT in humans) is a catalytic subunit of the enzyme telomerase, which, together with the telomerase RNA component (TERC), comprises the most important unit of the telomerase complex. [5] [6] Telomerases are part of a distinct subgroup of RNA-dependent polymerases.
Infection rates dropped and stabilised throughout 2022 and 2023, leading to the end of COVID-19's classification as a severe transmissible disease in June 2023. [22] Although the pandemic has heavily disrupted the country's economy, [23] Vietnam's GDP growth rate has remained one of the highest in Asia-Pacific, at 2.91% in 2020. Due to the more ...
He studies telomerase, the enzyme that copies the telomeric sequences and lengthens them. [8] The active site protein subunits of telomerase comprise a new class of reverse transcriptases, enzymes previously thought to be restricted to viruses and transposable elements. Telomerase is activated in 90% of human
The COVID-19 pandemic in Southeast Asia is part of the ongoing worldwide pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It was confirmed to have spread to Southeast Asia on 13 January 2020, when a 61-year-old woman from Wuhan tested positive in Thailand , making it the ...
Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. In January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic . The symptoms of COVID‑19 can vary but often include fever, [ 7 ] fatigue, cough, breathing difficulties , loss of smell , and loss of taste .
A police car in Hanoi with COVID-19 public health messaging. The Vietnamese government using social media platforms to keep the public informed of COVID-19 news and instructions. Thong Tin Chinh Phu (Governmental Information), the government's official Facebook page, provides nearly hourly updates on the country's pandemic situation. Zalo, a ...
The COVID-19 vaccines are widely credited for their role in reducing the severity and death caused by COVID-19. [ 128 ] [ 129 ] As of March 2023, more than 5.5 billion people had received one or more doses [ 130 ] (11.8 billion in total) in over 197 countries.