A mixture containing four proteins with native molecular weights: 120 kDa, 100 kDa, 40 kDa, and...
A mixture containing four proteins with native molecular weights: 120 kDa, 100 kDa, 40 kDa, and 10 kDa were applied on a size-exclusion chromatography column (1 cm (diameter) x 40 cm) with a fractionation range of 10-60 kDa. The bed volume is 31.42 mL, and the void volume is 10.47 mL. (a) Sketch a chromatogram representing the separation of this mixture of proteins with the above mentioned size exclusion column. Label the y-axis "arbitrary absorbance at 280nm" and the x-axis "volume of elution". Have the x-axis with tick marks at 10, 20, 30 and 40 mL of elution. Label the contents of each peak.
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A mixture containing four proteins with native molecular
weights: 120 kDa, 100 kDa, 40 kDa, and...
9. The following proteins were identified in a mixture. protein te precipitate MW (kDa) 4.8 22...
9. The following proteins were identified in a mixture. protein te precipitate MW (kDa) 4.8 22 IMRSO) 45% 80% 65% 20% 30% 45% 5.3 6.8 9.50 un 115 5.3 th(cont.) a) What is meant by "salting out" a protein using MgSO.? What happens on a molecular level? b) Draw a gel indicating proteins 1-6 order of elution in SDS-PAGE. Label where sample would start so I am clear on the validity of your answer. c) Draw their order of elution...
NOTES: To separate on a size-exclusion column, differences in MW need to be greater than 10%....
NOTES: To separate on a size-exclusion column, differences in MW need to be greater than 10%. To separate proteins by charge, the difference in pI must be at least 0.5 pH unit. Consider the table of four proteins below: Protein Size pI Size exclusion Charge at pH 7.4 DEAE-elution 1 49 kDa 6.8 2 51 kDa 8.1 3 53 kDa 6.4 4 99 kDa 8.3 5 106 kDa 3.8 6 143 kDa 7.9 (a) In what order would the proteins...
1.) Describe the goals of a Gel Filtration Chromotography Experiment??? 2.) Explain each key theoretical principle...
1.) Describe the goals of a Gel Filtration Chromotography
Experiment???
2.) Explain each key theoretical principle of a Gel Filtration
Chromotography, and how they help acheive the goal???.
4.) Explain the key equations used in the Gel Filtration
Chromotography experiment and the terms involved in the
equation????
HI im trying to prepare for a lab/report and i have some
questions i could use help with please :) over all having trouble
seeing how everything ties together etc :) thank you...
Q6. Given below in Table 2 are the readings obtained from a spectrophotometer, for the above...
Q6. Given below in Table 2 are the readings obtained from a spectrophotometer, for the above mentioned elution of NADH and Ovalbumin (NADH has a max of 340 nm, whereas Ovalbumin was reacted with Bradford dye to give a blue coloured Protein-dye complex, which absorbs at 595 nm). Draw a chromatogram, make sure to label the axis properly, give a legend to the graph and write a detailed title below the graph. (10 Marks) Table 1: Absorbance readings for NADH...
1. Did the column separate NADH and BSA? Explain based on your graph 2. What assumptions have you made in determining the absorbance of the mixture at two different wavelengths? 3. Is the reaction...
1. Did the column separate NADH and BSA? Explain based on your
graph
2. What assumptions have you made in determining the
absorbance of the mixture at two different
wavelengths?
3. Is the reaction catalysed by GPT a reversible
reaction? Give evidence from your experimental results in Table 3
to support your answer. (I DONT UNDERSTAND THIS QUESTION PLEASE
HELP)
Separation of BSA and NADH using Gel filtration chromatography 0.060 0.040 0.020 0.000 0.000 4.000 3.000 5.000 6.000 2.000 -0.020...
lab question 1. What is the basis of the different purification methods? 2. What are some...
lab question 1. What is the basis of the different purification methods? 2. What are some of the factors the might have interfered with your results? 3. How might you improve the process to increase the yield and purity? lab process E. coli BL21 (DE3) cells were transformed with the pET Topo-1521 vector containing a reading frame encoding the green fluorescent protein (GFP). Cells were cultured in M9ZB media at 37°C until the absorbance at 600 nm reached 0.7, at...
what is the prediction of the unknown amino acids mixture based on the strip from thin layer chromatography sheet? The unknown mixtures can be ala plus asp, ala plus asp plus lys, lys plus asp or ala...
what is the prediction of the unknown amino acids mixture
based on the strip from thin layer chromatography sheet?
The unknown mixtures can be ala plus asp, ala plus asp plus
lys, lys plus asp or ala plus lys.
anion exchange resin was used
Tubes 2,3, 6 and 7 had a spot appear that was light pink
We were unable to transcribe this imageWe were unable to transcribe this imageH-) to the column followed by a sufficient amount of the...
Biochem help 2 14. What would be the net charge on the dipeptide Ser-His at pH-...
Biochem help 2
14. What would be the net charge on the dipeptide Ser-His at pH- 6.04? (Choose the one best answer.) a) 1.5 b) +1; c) +0.5 d) 0 e) -0.5; 15. The pKa of a lysine side chain in a protein ending up on the outside of a globular protein has a different pKa than if the lysine is buried within the interior of a protein. What would be the expected pKa of a side chain of lysine...
5. When all of the sample to be collected has left the column, will the drop...
5. When all of the sample to be collected has left the
column, will the drop of solution coming off the tip of the column
be acidic, basic or neutral?
6. How many H+ ions would be displaced from the ion
exchange column by 1 Cu2+ ion?
7. Binding sites on the ion exchange resin are saturated
with which ion before the sample solution is added?
8. Ions are displaced from the resin binding sites by
any ion that has...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification Reactions Q: Calculate the expected mass of both methyl salicylate and aspirin assuming 100% yield. EXPERIMENT7 PREPARATION OF PHARMACEUTICALS...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
9. The following proteins were identified in a mixture. protein te precipitate MW (kDa) 4.8 22 IMRSO) 45% 80% 65% 20% 30% 45% 5.3 6.8 9.50 un 115 5.3 th(cont.) a) What is meant by "salting out" a protein using MgSO.? What happens on a molecular level? b) Draw a gel indicating proteins 1-6 order of elution in SDS-PAGE. Label where sample would start so I am clear on the validity of your answer. c) Draw their order of elution...
1.) Describe the goals of a Gel Filtration Chromotography
Experiment???
2.) Explain each key theoretical principle of a Gel Filtration
Chromotography, and how they help acheive the goal???.
4.) Explain the key equations used in the Gel Filtration
Chromotography experiment and the terms involved in the
equation????
HI im trying to prepare for a lab/report and i have some
questions i could use help with please :) over all having trouble
seeing how everything ties together etc :) thank you...
Q6. Given below in Table 2 are the readings obtained from a spectrophotometer, for the above mentioned elution of NADH and Ovalbumin (NADH has a max of 340 nm, whereas Ovalbumin was reacted with Bradford dye to give a blue coloured Protein-dye complex, which absorbs at 595 nm). Draw a chromatogram, make sure to label the axis properly, give a legend to the graph and write a detailed title below the graph. (10 Marks) Table 1: Absorbance readings for NADH...
1. Did the column separate NADH and BSA? Explain based on your
graph
2. What assumptions have you made in determining the
absorbance of the mixture at two different
wavelengths?
3. Is the reaction catalysed by GPT a reversible
reaction? Give evidence from your experimental results in Table 3
to support your answer. (I DONT UNDERSTAND THIS QUESTION PLEASE
HELP)
Separation of BSA and NADH using Gel filtration chromatography 0.060 0.040 0.020 0.000 0.000 4.000 3.000 5.000 6.000 2.000 -0.020...
what is the prediction of the unknown amino acids mixture
based on the strip from thin layer chromatography sheet?
The unknown mixtures can be ala plus asp, ala plus asp plus
lys, lys plus asp or ala plus lys.
anion exchange resin was used
Tubes 2,3, 6 and 7 had a spot appear that was light pink
We were unable to transcribe this imageWe were unable to transcribe this imageH-) to the column followed by a sufficient amount of the...
Biochem help 2
14. What would be the net charge on the dipeptide Ser-His at pH- 6.04? (Choose the one best answer.) a) 1.5 b) +1; c) +0.5 d) 0 e) -0.5; 15. The pKa of a lysine side chain in a protein ending up on the outside of a globular protein has a different pKa than if the lysine is buried within the interior of a protein. What would be the expected pKa of a side chain of lysine...
5. When all of the sample to be collected has left the
column, will the drop of solution coming off the tip of the column
be acidic, basic or neutral?
6. How many H+ ions would be displaced from the ion
exchange column by 1 Cu2+ ion?
7. Binding sites on the ion exchange resin are saturated
with which ion before the sample solution is added?
8. Ions are displaced from the resin binding sites by
any ion that has...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
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