Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

The following Lineweaver-Burk plot was generated from data regarding the activity of a wild-type (native, non-mutant) enzyme called EPSPS that is involved in plant metabolism.

image text in transcribedimage text in transcribed The following Lineweaver-Burk plot was generated from data regarding the activity of a wild-type (native, non-mutant) enzyme called EPSPS that is involved in plant metabolism. Also shown are data for a mutant form of the enzyme and for the wild-type enzyme in the presence of the herbicide Roundup, which is an inhibitor of EPSPS. The units on the x-axis are (M)1 and the units on the y-axis are (M/s)1. The same concentration of enzyme (200nM) was used for each condition. Experiments with inhibitor used an inhibitor concentration of 250M. a) Find the catalytic rate constant (called either k2 or kcat ) and the Michaelis constant (Km) of the wild-type enzyme. b) Based on the data, is the catalytic rate constant of the mutant enzyme greater than, less then or equal to the corresponding value for the wild-type enzyme? c) Based on the data, is the Michaelis constant of the mutant enzyme greater than, less than or equal to the corresponding value for the wild-type enzyme? d) In the absence of inhibitor, what enzyme concentration is required to achieve a reaction rate of 2.0M/s for a substrate concentration of 1M ? e) What type of inhibition is being exhibited by Roundup? f) Find the inhibition dissociation constant (K1). g) In the presence of 10M Roundup, what enzyme concentration is required to achieve a reaction rate of 2.0M/s for a substrate concentration of 1M

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Fundamentals Of Momentum Heat And Mass Transfer

Authors: James Welty, Gregory L. Rorrer, David G. Foster

6th Edition

1118947460, 978-1118947463

More Books

Students also viewed these Chemical Engineering questions

Question

What is EVA, and how is it measured?

Answered: 1 week ago