Calcium as Second Messengers - Essay Example

Only on StudentShare

Extract of sample
Calcium as Second Messengers

Calcium ions are also important intracellular messengers. In fact, calcium ions are probably the most widely used intracellular messengers (Kimball, 2006). Calcium plays a fundamental role in a variety of cellular functions. It is involved in contraction, secretion, endocytosis, transport across membranes and in more general processes such as cell motility, cell growth and cell division (De Robertis & De Robertis, 1987). Calcium is one of the most important second messenger molecules, with a diverse array of effectors. The intracellular Ca2+ plays a role as the second messenger in the hypotonic stress-induced Na+ transport by stimulating the transcription of SGK1 and ENaC subunits (Taruno, Niisato, Marunaka, 2007). Calcium directly moderates electrical activity, on a relatively fast time scale, through its control of calcium-dependent potassium channels. Long term effects are mediated by various kinases and phosphatases. Calcium is one of the activators of protein kinase C, which plays a role in synaptic plasticity. In a complex with calmodulin56, calcium is an activator or regulator of several enzymes, including calcium-calmodulin dependent protein kinase, which plays a role in synaptic plasticity, and adenylate cyclase, which produces cAMP, another important second messenger. ...Show more

Summary

Second messengers are molecules that relay signals received at receptors on the cell surface - such as the arrival of protein hormones, growth factors, etc. - to target molecules in the cytosol and/or nucleus. But in addition to their job as relay molecules, second messengers serve to greatly amplify the strength of the signal…
Author : andersonangela
Calcium as Second Messengers essay example
Read Text Preview
Save Your Time for More Important Things
Let us write or edit the essay on your topic
"Calcium as Second Messengers"
with a personal 20% discount.
Grab the best paper

Related Essays

Medical
I would like to assure you that you don’t need to be anxious regarding this issue. Hormonal problems are fairly common especially in women of reproductive age group. You need to understand that there are several different hormones in our body which are essential for different body functions.
3 pages (750 words) Essay
My Messengers and Interpreter
With its complexity though, the nervous system can be divided into subsystems according to function. One of these is the sensory system. The sensory system is composed of sensory receptors, nerves and some parts of the brain. Sensory receptors are certain types of cells, either neurons or specialized cells that respond to internal or environmental stimuli (Brooker et al.
1 pages (250 words) Essay
Calcium within the Human Body
Calcium is crucial for various physiological purposes, including nervous transmission, muscular contraction, blood clotting, and heart performance. In both metabolism and bone composition, calcium is strongly related to phosphorus and magnesium. In the following pages, calcium metabolism and its regulation will be addressed, including how it is obtained, stored, and the hormones involved in its processes.
6 pages (1500 words) Essay
Calcium and osteoporosis in the elderly
It affects skeletal structure of the body making it weak and fragile. Generally, an osteoporosis patient is above 50 years of age. The number of women getting affected by this disease is more than men. The bones remain strong till the age of 20 however as the age of a person increases the risk of osteoporosis also increases.
11 pages (2750 words) Essay
Second Life
It gives scope to its users to virtually become whatever they want and do whichever they would wish to do. They can create avatars
3 pages (750 words) Essay
Screening for novel peptides that block T-type calcium channels
Other calmodulin-mediated enzymes include phosphatases, cyclases, esterases, and ion channels. Cytoplasmic calcium ions also contribute into inducing protein and DNA synthesis, and nuclear transport, thus trapping the cells in its quiescent state of cell
4 pages (1000 words) Essay
Effectivenes of vitamin D and calcium in preventing falls
Each year, in the UK falls from stairs account for more than 1000 deaths in older people and cause 330,000 serious injuries. Falls
26 pages (6500 words) Essay
My Messengers and Interpreter
One of these is the sensory system. The sensory system is composed of sensory receptors, nerves and some parts of the brain. Sensory receptors are certain types of cells, either
1 pages (250 words) Essay
Second paper
This paper explores the contrast between the opinions of the three authors concerning the effect of imperialism on material progress. Bauer’s article “The Economics of Resentment: Colonialism and
2 pages (500 words) Essay
Case studies
w adrenaline hormone is synthesized by the endocrine cell as it is synthesized in the medulla of the adrenal gland through the conversion of amino acid tyrosine (Peters, 2005). 7.What does this classification dictate in terms of how the hormone is synthesized by the endocrine
2 pages (500 words) Essay
Get a custom paper written
by a pro under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
YOUR PRIZE:
Apply my DISCOUNT