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What is the site of protein photosynthesis?
Protein synthesis occurs in the ribosomes, which are found in both the cytoplasm of prokaryotic cells and on the rough endoplasmic reticulum of eukaryotic cells. The process involves the translation of mRNA into a specific sequence of amino acids to form a protein.
What is the site for protein-synthesis?
The site for protein synthesis is a cell structure. The specific structure in which synthesis occurs is the ribosomes, which is in the cytoplasm.
What molecule caries an amino acid to the site of protein synthesis?
Transfer RNA (tRNA) carries an amino acid to the site of protein synthesis on the ribosome. Each tRNA molecule has a specific amino acid attached to it and matches with the corresponding codon on the messenger RNA (mRNA) during protein synthesis.
What is a binding site and why does it have a specific shape?
A binding site is the outer part of the protein that is folded into a unique shape. It has to have this certain shape, otherwise the enzyme and substrate will not fit together. This is called a "lock and key" mechanism.
How does amino acids get to the site of protein synthesis?
Amino acids are brought to the site of protein synthesis by transfer RNA (tRNA) molecules. Each tRNA molecule is specific to a particular amino acid and carries it to the ribosome, where protein synthesis occurs. The tRNA molecules recognize the codons on the mRNA and deliver the corresponding amino acids to the growing protein chain.
The region of a protein that binds a ligand?
The region on a protein that binds a ligand is known as the binding site. This site is typically composed of specific amino acids that interact with the ligand through various chemical bonds and molecular interactions. The binding of the ligand to the protein's binding site is crucial for the protein's function and activity.
What is Kd?
Kd, also known as the dissociation constant, is a measure of the affinity of a ligand for its binding site on a protein. It quantifies the equilibrium between a protein-ligand complex and the unbound forms. A lower Kd value indicates higher affinity between the protein and ligand.
What does Monotopic mean?
Monotopic refers to a protein or enzyme that has only one binding site for a ligand or substrate. It means that the molecule can only bind to one specific site on the protein, as opposed to proteins with multiple binding sites which are known as polytopic.
What is ligand gated ion channel?
Ionotropic receptors are ligand-gated or transmitter gated ion channels. The binding of a neurotransmitter or other ligand to a particular site on a domain of a protein in the receptor causes a conformational change in the protein subunits. This allows a certain ion to pass through, poteitally potassium, sodium or chloride. There are two types of ionotropic receptors, non-NMDA and NMDA. Both are ligand gated receptors, however the NMDA is also voltage gated.
What happens when a ligand gated channel is stimulated?
When a ligand-gated channel is stimulated, the specific ligand (or chemical signal) binds to the receptor site on the channel, causing a conformational change in the channel protein. This change opens or closes the channel, allowing specific ions to flow through. This ion movement can generate an electrical signal in the cell and trigger various physiological responses.
Difference between allosteric and covalent modulation?
The 2 mechanisms to alter protein shape are allosteric and covalent modulation. Allosteric: If the protein contains 2 binding sites, the noncovalent binding of a ligand to one site can alter the shape & characteristics of the other site. -One binding site on an allosteric protein, the functional site, carries out the proteins physiological functions. -The other binding site is the regulatory site, and the ligand that binds to it is called the modulator molecule because it changes the shape! Covalent: Covalent bonding of charged chemical groups to some of the proteins side chains changes the shape and characteristics of the protein. Usually a phosphate group is covalently bonded, in the reaction called phosphorylation.
What is a binding site?
The binding site is where a specific binding molecule and a specific receptor protein can combine. This combination can only occur at the binding site. All in the 9th grade text book
What is the site where protein is made?
They are made near an enzyme site where all the molecules are born in specific code areas. This site is called a ribosome and found in the cell interior.
What is the site of protein photosynthesis?
Protein synthesis occurs in the ribosomes, which are found in both the cytoplasm of prokaryotic cells and on the rough endoplasmic reticulum of eukaryotic cells. The process involves the translation of mRNA into a specific sequence of amino acids to form a protein.
What is the site for protein-synthesis?
The site for protein synthesis is a cell structure. The specific structure in which synthesis occurs is the ribosomes, which is in the cytoplasm.
What does the analogy lock of key describe?
The lock and key analogy is often used to explain how specific molecules interact in biological systems, particularly in the context of enzyme-substrate interactions or receptor-ligand binding. In this analogy, the "lock" represents the enzyme or receptor, while the "key" symbolizes the substrate or ligand that fits precisely into the active site or binding site. This precise fit ensures that only specific substrates or ligands can trigger a biological response, emphasizing the importance of specificity in biochemical interactions.
What molecule caries an amino acid to the site of protein synthesis?
Transfer RNA (tRNA) carries an amino acid to the site of protein synthesis on the ribosome. Each tRNA molecule has a specific amino acid attached to it and matches with the corresponding codon on the messenger RNA (mRNA) during protein synthesis.
