What change can one expect in the metabolism of a cell on inactivating the PTS system?

Carbon catabolite repression caused by glucose is mediated through phosphotransferase system (PTS) and also known as "Glucose Repression".

03 April 2015 1,388 0 View

How to calculate the fraction metabolized of a drug by an enzyme using clearance(ml/min) values of the metabolite formed?

I am trying to find the fraction metabolized of a drug by CYP and UGT enzymes. I am unable to get the values of fraction metabolized (Fm) directly from the literature. Can we calculate the Fm of a...

21 February 2021 5,379 2 View

How long does it take to design and validate transition state analogue inhibitors?

Hi, I'm asking from the point of view of designing a research plan: How long (approximately) can it take to determine the transition state structure of an enzyme substrate using kinetic isotope...

14 February 2021 2,610 1 View

Kinetics of Enzyme production in Recombinant E Coli?

Hello, I am trying to find kinetic information (such as rate of enzyme production etc.) on the expression of taq polymerase in E-Coli after inserting a recombinant plasmid. Any help would be...

12 February 2021 1,386 3 View

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Hello! I want to determine the activity of my in house Reverse Transcriptase enzyme. For this, I have used Thermo's Enzcheck Reverse Transcriptase assay kit. I used commercial Thermo RT enzyme to...

08 February 2021 7,285 1 View

How define one baker unit(BU) is the amount of hydrogen peroxide catalase ?

07 February 2021 2,006 1 View

Does DNA A-tailing survive after agarose gel electrophoresis and purification?

Hi everyone, I need to clone in pGEM-T vector the result of amplifying a metagenomic library by PCR with a high fidelity polymerase but I only want to clone the fragments of an specific size...

04 February 2021 6,051 8 View

What are some common oxidants used to oxidize iron sulfur clusters in proteins for techniques like EPR?

I have used potassium ferricyanide (which is likely the most common) extensively in the past, but I am curious to know if there are other oxidants that work well. I need to generate the oxidized...

29 January 2021 9,803 4 View

Papain Enzyme Assay...?

Hi all, I would like to know how can I estimate the activity of the enzyme, papain, which is used in reactions as crude latex extract of papaya. Please share some procedures if anybody having...

26 January 2021 569 4 View

Where can I find plants pyr-GC-MS data?

25 January 2021 5,403 2 View

Recombinant restriction enzyme: how strong should the corresponding methyltransferase expression level be?

Hello. We are planning expression of a restriction enzyme in E. coli, and wondering how much of the corresponding methyltransferase is needed to be expressed in order to protect the host genome...

23 January 2021 2,096 4 View