Question

In: Chemistry

Determine the catalyst activity of trypsin.

Determine the catalyst activity of trypsin.

Solutions

Expert Solution

Enzyme catalysis is the increase in the rate of a chemical reaction by the active site of a protein. The protein catalyst(enzyme) may be part of a multi-subunit complex, and/or may transiently or permanently associate with a Cofactor (e.g.adenosine triphosphate). Catalysis of biochemical reactions in the cell is vital due to the very low reaction rates of the uncatalysed reactions. A key driver of protein evolution is the optimization of such catalytic activities via protein dynamics.

The mechanism of enzyme catalysis is similar in principle to other types of chemical catalysis. By providing an alternative reaction route the enzyme reduces the energy required to reach the highest energy transition state of the reaction. The reduction of activation energy (Ea) increases the amount of reactant molecules that achieve a sufficient level of energy, such that they reach the activation energy and form the product. As with other catalysts, the enzyme is not consumed during the reaction (as a substrate is) but is recycled such that a single enzyme performs many rounds of catalysis


Related Solutions

A group of chemists wanted to determine whether a new catalyst 2 increased the reaction rate...
A group of chemists wanted to determine whether a new catalyst 2 increased the reaction rate of a particular chemical reaction relative to that same chemical reaction with an older catalyst 1. The duration of the reactions, in seconds, are recorded below: Catalyst 1: 14.1,18.9,22,21.2,25.3,16.8,18.7,15.3,20.4,16.6,19.5,12.9,20.6,17.2,20.4 Catalyst 2: 18.2,16.7,16.5,17.6,15.8,15.3,17.2,16,17.4,16.9 (a) Plot the data using side-by-side box plots in R. (b) Check the assumptions for performing a two-sample t-test. (c) Perform the appropriate two sample t test for means at the 5%...
For a particular chemical synthesis, the effect of precursor concentration and catalyst amount were studied. Catalyst...
For a particular chemical synthesis, the effect of precursor concentration and catalyst amount were studied. Catalyst amount 0.5 kG Catalyst amound 1 kG Precursor concentration 15% 17, 18, 21 31, 28, 29 Precursor concentration 30% 28, 24, 27 34, 37, 41 Calculate the : a)effect of each factor and interaction between factors, b)significance of each factor and interactions, c) residuals between the actual value and the linear statistical model based on the estimates from 1. Do you think the residuals...
Trypsin is a protein that reacts with the substrate, dihydrogen dioxide, and yields the values of...
Trypsin is a protein that reacts with the substrate, dihydrogen dioxide, and yields the values of Km and Vmax. Trypsin 6 (a variation of Typsin) also reacts with the substrate, dihydrogen dioxide, but results in double the Km and Vmax values. 1. Sketch the Lineweaver-Burke graph for Trypsin and Trypsin 6 2. Explain how and why these graphs differ Hint: Consider substrate concentration
Trypsin is an enzyme that can digest the hydrophilic portions of membrane proteins, but it is...
Trypsin is an enzyme that can digest the hydrophilic portions of membrane proteins, but it is unable to penetrate the lipid bilayer and enter a cell. Due to these properties, trypsin has been used in conjunction with SDS-PAGE to determine what proteins have an extracellular domain. Describe an experiment using trypsin to determine the sidedness of proteins of the erythrocyte membrane. BE SURE TO INCLUDE ANY RELEVANT CONTROLS
A sample of a peptide of unknown sequence was treated with trypsin; another sample of the...
A sample of a peptide of unknown sequence was treated with trypsin; another sample of the same peptide was treated with chymotrypsin. The sequences (N-terminal to C-terminal) of the smaller peptides produced by trypsin digestion were as follows: Cys—Thr—Ala—Ser—Ile—Lys Arg—Thr—Arg—Gln—Arg Gln—Phe—Ala—Val—Tyr—Asn—Lys Phe—His—Cys—Asn The sequences of the smaller peptides produced by chymotrypsin digestion were as follows: Asn—Lys—Cys—Thr—Ala—Ser—Ile—Lys—Phe Arg—Thr—Arg—Gln—Arg—Gln—Phe His—Cys—Asn Ala—Val—Ty
Which species is an intermediate? Which species is a catalyst?
Which species is an intermediate? Which species is a catalyst?
Trypsin is a proteolytic enzyme that displays a similar mechanism to the studied for chymotrypsin (serine...
Trypsin is a proteolytic enzyme that displays a similar mechanism to the studied for chymotrypsin (serine protease). Tosyl-L-lysine chloromethyl ketone is a specific inhibitor of trypsin. Why is this compound specific for trypsin?
This is for my biochemistry lab, the experiment is dealing with trypsin and BPTI. I need...
This is for my biochemistry lab, the experiment is dealing with trypsin and BPTI. I need to make a graph: plot the absorbance change per minute versus the BPTI concentration for each cuvette. here are my cuvettes and amount of BPTI added to each 1- 0uL BPTI added 2- 10 uL BPTI added 3-20 uL BPTI added 4-30 uL BPTI added 5- 40 uL BPTI added 6- 50 uL BPTI added. Each cuvette has a different amount of water and...
Trypsin and chymotrypsin are members of the family of serine proteases. They cleave peptide bonds at...
Trypsin and chymotrypsin are members of the family of serine proteases. They cleave peptide bonds at the C-terminal end of specific residues. Chymotrypsin recognizes aromatic residues, while trypsin recognizes lysine and arginine. The recognition of a particular side chain (side chain specificity) is fully determined by the structure and properties of the binding pocket. In the case of chymotyipsin the binding pocket is hydrophobic and is wide enough to accommodate an aromatic ring. Given what you know about the properties...
In this activity, you will determine the probability of obtaining one of these disproportionate ratios if...
In this activity, you will determine the probability of obtaining one of these disproportionate ratios if we assume that nature alone is responsible for these obscure results. In order to determine these probabilities, you will use the Normal approximation to the binomial. 1. Outline the binomial model for the number of boy births in the next 1000 births assuming that births are produced according to the natural ratio of 51.2% chance of a boy. 2. Outline the Normal approximation to...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT