Question

Compare the Bradford assay and the Bicinchonic Acid Assay. Which is likely to give the most...

Compare the Bradford assay and the Bicinchonic Acid Assay. Which is likely to give the most accurate estimate of protein concentration.

Explain why A280can be used to measure protein concentration. Is this method better suited to complex samples or purified proteins?

After preparing a standard curve of diluted BSA protein in a BCA assay you get a trendline with the equation A562 = 0.0011[BSA] (mg/mL) + 0.0378.

Rearrange the equation to solve for [BSA] (mg/mL).

If a 1:8 dilution of sample gives a A562 reading of 0.324, what is the concentration of protein in the undiluted sample?

Given a total volume of 5.5mL, what is the total amount of protein in the sample?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
You are performing a Bradford assay. You construct your standard curve (concentration in mg/mL on the...
You are performing a Bradford assay. You construct your standard curve (concentration in mg/mL on the x-axis, Absorbance on the y-axis) and derive a trendline with an equation of y = 0.25x (the intercept is set to zero because you blanked your spectrophotometer correctly). You dilute protein A using the volumes given below, to a final volume of 1000 μL, and measure the absorbance: 6 μL to 1000 μL = Abs 0.04 80 μL to 1000 μL = Abs 0.15...
In a protein assay, the original sample was first diluted 1/5. Then 5ml of the diluted...
In a protein assay, the original sample was first diluted 1/5. Then 5ml of the diluted sample was mixed with 20ml of reactants to give 25 ml total. 5 mL were removed from the 25 mL mixture. The 5mL contained 3 mg of protein. What was the concentration of protein in the original sample?
1) Tell me how you would prepare 200 mL of a 200 mM MOPS (3-[N-morpholino]propanesulfonic acid,...
1) Tell me how you would prepare 200 mL of a 200 mM MOPS (3-[N-morpholino]propanesulfonic acid, FW 209.3) buffer at pH 7.5 using the Henderson Hasselbalch equation. You have only the solid acid form of MOPS available to you to make the buffer. How else could you prepare this buffer in a more speedy and pratical way? Be specific as possible. 2) I isolated a pure protein (W) and determined the protein content using the UV, Lowry, BCA, and Coomassie...
I am asked to prepare a bradford assay in class using gamma-globulin (to determine the concentration...
I am asked to prepare a bradford assay in class using gamma-globulin (to determine the concentration of protein (a-La in original milk and multiple other samples) in order to do this I must prepare a strand curve (calibration curve) with samples containing known concentrations of gamma-globulin. The dilutions are made with a buffer A used in lab and the final volume of each dilution must be at least 200 uL. The standard curve will range from 0 to 60 mg/mL...
The concentration of an undiluted sample is 26.4 mg/ml. To calculate that answer, the concentration of...
The concentration of an undiluted sample is 26.4 mg/ml. To calculate that answer, the concentration of the diluted sample was multiplied by the dilution factor. Knowing that the dilution factor is 2, work backwards to determine the concentration of the DILUTED sample. A. 13.2 mg/ml B. 132.0 mg/ml C. 1.32 mg/ml D. 26.4 mg/ml What is the unit used to describe cell solutions measured in a spectrophotometer? Cells/milliliter Grams (g) Optical density (OD) Meters (m) Spectroscopy is based on the...
Absorbance Values for BSA Standard Curve BSA Concentration (mg/mL) Absorbance Trial 1 Absorbance Trial 2 Absorbance...
Absorbance Values for BSA Standard Curve BSA Concentration (mg/mL) Absorbance Trial 1 Absorbance Trial 2 Absorbance Trial 3 Absorbance Trial 4 Absorbance Trial 5 Absorbance Trial 6 0.2 0.239 0.247 0.195 0.234 0.287 0.280 0.4 0.510 0.499 0.513 0.522 0.586 0.549 0.6 0.796 0.771 0.695 0.754 0.799 0.800 0.8 1.045 1.002 0.999 1.023 1.015 1.018 1.0 1.260 1.197 1.045 1.200 1.243 1.107 Absorbance Values for IgG Standard Curve IgG Concentration (mg/mL) Absorbance Trial 1 Absorbance Trial 2 Absorbance Trial 3...