What is homocystinuria, Biology

Assignment Help:

Q. What is Homocystinuria?

Homocystinuria may result from errors of methionine metabolism. This produces defects in the function of cystathionme b synthase or 5-mcthyltctrahydrofolate homocysteine methyltransferase.

The most common form of hornocystinuria is caused by a deficiency of the enzyme cystathionine b synthase. This enzyme is essential for the conversion of homocysteine to cystathionine. Severely impaired enzyme function produces accumulation of plasma homocysteine and methionine and decreased cysteine in cells. Large amounts of homocystine are excreted in the urine.


Related Discussions:- What is homocystinuria

Which kind of polarity do fat-soluble substance has, Q. Which kind of polar...

Q. Which kind of polarity do fat-soluble and water-soluble substances respectively have? Ans. Water-soluble substances are behave as polar molecules, i.e., they have e

Explain the term lipids, Explain the term Lipids? If somebody discovers...

Explain the term Lipids? If somebody discovers that you have some knowledge of nutrition, you will be promptly shooted with two questions, first, "Oh! You really can tell how m

What is resting membrane potential of an axon, Action potentials include ch...

Action potentials include changes in the membrane potential of an axon, as shown in the schematic below. During the refractory period, sodium channels are inactivated and

Explain the explosion puffing, Explain the Explosion Puffing? Explosion...

Explain the Explosion Puffing? Explosion puffing has been recognized as one of the most significant developments in dehydration technology. In explosion puffing, partially dehy

Define requirements of calcium during pregnancy period, Define requirements...

Define requirements of Calcium during pregnancy period? The foetus retains about 25-30 g of calcium, over the course of gestation, most of which is deposited in the last trimes

Define insect resistant crops in ecological way, Insect resistant crops (IR...

Insect resistant crops (IRC) Should reduce use of insecticides. This is beneficial to environment because:  -  More beneficial insects around as they are not killed by in

Experiment supported by nasa , An experiment supported by NASA calculated t...

An experiment supported by NASA calculated the heights of 6 men rapidly before going to bed, and then again after 3 days of bed rest. The data were as follows: What is the 95% con

Explain the energy - releasing metabolic process, The energy - releasing me...

The energy - releasing metabolic process in which substrate is oxidised without an external electron acceptor is known as: 1. Glycolysis 2. Fermentation 3. Aerobic respira

Explain future challenges of connecting models and data, Explain Future cha...

Explain Future challenges of connecting models and data? Since biological systems are complex, models of biological systems are also complex, and matching models and data is a

Why are most ammoniotelic beings aquatic animals, Why are most ammoniotelic...

Why are most ammoniotelic beings aquatic animals? Aquatic animals, like crustaceans, bony fishes and amphibian larvae, usually are ammoniotelic since ammonia diffuses more easi

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