Explain pyruvate kinase, Biology

Assignment Help:

Pyruvate kinase catalyzes the third irreversible move in glycolysis.  It is activated by fructose 1, 6-bisphosphate.  The ATP and amino acid alanine allosterically inhibit the enzyme so which glycolysis slows when supplies of biosynthetic precursors and ATP (indicated by the levels of Ala) are already sufficiently high. Additionally, in a control similar to that for PFK, when the blood glucose concentration is low, glucagon is stimulates and released phosphorylation of the enzyme by a cAMP cascade. This covalent modification inhibits the enzyme so in which glycolysis slows down in times of low blood glucose levels.

 


Related Discussions:- Explain pyruvate kinase

Rare species - wildlife, Rare Species - Wildlife These are those speci...

Rare Species - Wildlife These are those species whose numbers are few or they live in such small areas or in such unusual environments (endemics), that they could quickly disa

Determine the types of symbols used in soil horizons, Determine the types o...

Determine the types of symbols used in Soil Horizons  Three kinds of symbols are used in various combinations to designate horizons. These are capital letters, lower case lett

Tetrasaccharides, TETRASACCHARIDES The oligosaccharides are formed b...

TETRASACCHARIDES The oligosaccharides are formed by condensation of four monosaccharides. T rachyos e is a nonreducing tetrasaccharide found in plants as transport ca

What are taenias, What are taenias? What are the diseases caused by them? ...

What are taenias? What are the diseases caused by them? Taenias, also called as tapeworms, are platyhelminth animals (flatworms). The major diseases caused by taenias are taeni

Heat exchangers-type of oxygenators , Heat Exchangers :  This is an integr...

Heat Exchangers :  This is an integral part of cardio pulmonary bypass and is designed to cool and warm the perfusate. non-sterile water from ice bath or warm water passed through

Parasite and host during incubation period, Parasite and host during incuba...

Parasite and host during incubation period Incubation period is the second stage in the process of a disease. It is the time between the day of infection to the appearanc

Measurement and evaluation of food texture, Q. Measurement and Evaluation o...

Q. Measurement and Evaluation of Food Texture? Kinesthetic characteristics deal with the sense of feel, just like the characteristics of appearance deal with the sense of sight

Why does the ingestion of vegetable fibers improve the bowel, Why does the ...

Why does the ingestion of vegetable fibers improve the bowel habit in people that suffer from hard stools? Some types of plant fibers are not absorbed by the intestine but play

Explain enzymes, Explain Enzymes Enzymes are the proteins that  act  ...

Explain Enzymes Enzymes are the proteins that  act  as  catalysts,  speeding the  rate  at which biochemical reactions proceed but not altering  the direction or nature of th

What is tetralogy of fallot, What is Tetralogy of Fallot ? Figure...

What is Tetralogy of Fallot ? Figure: Anatomical location of tetralogy of fallot Indications for Surgery :  The diagnosis of tetralogy is considered as an indicatio

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd