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Katyanochek1 [597]
3 years ago
10

What is responsible for termination of transcription in eukaryotic protein-coding genes?

Biology
1 answer:
kupik [55]3 years ago
7 0

Answer:

<h2>A polyadenylation signal or poly(A) </h2>

Explanation:

Termination. In eukaryotes, transcription is terminated differently for the all 3 different RNA polymerases. Transcription is terminated by two elements: i) a poly(A) signal and ii) a downstream terminator sequence.

In eukaryotic protein-encoding genes, the cleavage site in the RNA occurs between an upstream( the sequence before the cleavage site) AAUAAA  and a downstream GU-rich, separated by approx 40-60 nucleotides. After they both have been transcribed, a protein knows as CPSF  and another protein called CstF( in humans)  helps in termination.

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dynamic modeling of alpha-synuclein aggregation for the sporadic and genetic forms of parkinson's disease
Triss [41]

Numerous degenerative neurological conditions, most notably Parkinson's disease, have been linked to an excessive buildup of alpha synuclein (a-syn) in the brain. Intraneuronal inclusions, often known as Lewy bodies, are neuropathological characteristics seen in Parkinson's disease, Lewy body dementia, and other synucleopathies. The aggregation of a-syn is their main structural component. A-syn accumulation, aggregation, and ensuing Lewy body formation can be attributed to a variety of biological processes. These include genetic changes in parkin, synuclein, or the deubiquitinating enzyme ubiquitin C-terminal hydrolase (UCH-L1), which results in less efficient removal of a-syn via the ubiquitin proteasomal pathway (UPP). Additionally, environmental variables and an age-related decline in antioxidant defense mechanisms that heighten oxidative stress and can have an impact on the formation or clearance of a-syn are intracellular insults.

We focused on changes in the aggregation and clearance of a-syn as impacted by the UPP and the oxidative stress pathways in our dynamic models of a-syn processing in both normal and various disease states. A free radical profile similar to that observed in vivo after exposure to the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine is produced during simulation of enhanced oxidative stress (MPTP). To replicate the kinetics of a-syn that correlates to the neuropathology reported for the sporadic and hereditary types of Parkinson's disease, different model parameters of oxidative stress, UPP failure, or both routes are used. With the use of this in silico model, it is possible to evaluate the kinetics of pathway elements and more accurately identify and validate key pharmaceutical targets.

Learn more about Parkinson's disease brainly.com/question/28169444

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3 0
2 years ago
Why are there no samples of rocks from the early Precambrian era?
xenn [34]

Answer:

The correct answer is -  D. All rocks were molten in that time period.

Explanation:

The early Precambrian era began 4.6 billion years ago. The formation of eath start from this era with dust and gas. The atmosphere at that time was too hot. It was like hades. The rocks were molten and appear to like an ocean of rocks.

Due to the molten rocks, there are no samples of rock from this area as it was too hot to be formed. There were boiling sulfur and gases were everywhere.

4 0
3 years ago
The _____________ collect(s) urine from the papillae; the urine is then emptied into the ______________.
Akimi4 [234]
The collecting tubules,then into the calyces
6 0
4 years ago
Read 2 more answers
​Each year in the United States about how many children are abducted, sexually assaulted, and killed by sexual predators?
Mkey [24]

Answer:

150

Explanation:

Annually, About a hundred and fifty children in the United States are abducted, sexually assaulted, and killed by sexual predators

4 0
4 years ago
Gibberellins were extracted from<br> a) Bacteria<br> b) Virus<br> c) Algae<br> d) Fungi
inn [45]

Answer:

Gibberellins were extracted from <em>Bacteria</em>

4 0
3 years ago
Read 2 more answers
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