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A protein that binds the calcium in smooth muscle?
Calmodulin is a protein that binds calcium ions in smooth muscle cells. When calcium binds to calmodulin, it triggers a series of intracellular signaling events that lead to smooth muscle contraction.
What is the Site of calcium regulation in smooth muscle tissue?
Calmodulin on myosin heads
Where does calcium calmodulin system of contraction regulation is found?
Smooth muscle only.
What is The calcium calmodulin system of contraction regulation found in?
smooth muscle only
The site of calcium regulation in the smooth muscle cell is?
Calmodulin (a cytoplasmic calcium binding protein)
Which types of muscle tissue contain branching cells?
cardiac
Does cyclic amp bind to calmodulin?
No, calcium bonds to calmodulin
What does calcium bind to in smooth muscle contraction?
Calcium binds to the messenger protein Calmodulin. The calcium-calmodulin complex then activates myosin light chain kinase (MLCK), which phosphorylates myosin to allow it to bind to actin - producing contraction.
Is smooth muscle appear to lack tropin?
Smooth muscle does not contain troponin, which is a regulatory protein found in skeletal and cardiac muscle. Instead, smooth muscle contraction is regulated by the protein calmodulin, which interacts with calcium ions to activate myosin light chain kinase. This mechanism allows smooth muscle to contract in response to various stimuli, such as hormones and neurotransmitters, without the troponin-tropomyosin complex found in striated muscles.
What is a calmodulin?
A calmodulin is a calcium-binding protein found in all nucleated cells.
What is the function of calmodulin?
Calmodulin is a calcium-binding protein that plays a crucial role in cellular signaling processes. It binds calcium ions, causing a conformational change that enables it to interact with various target proteins, including kinases and phosphatases. This interaction modulates various physiological functions, such as muscle contraction, neurotransmitter release, and cell division. By acting as a mediator of calcium signaling, calmodulin helps regulate critical cellular responses to changes in calcium levels.
What features do cell have?
muscle contain special proteins called contractile proteins, they contract and relax to cause movement. Muscles are generally of two types (1) voluntary muscle and (2) involuntary muscle.
