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

What is the significance of spicules, What is the significance of Spicules?...

What is the significance of Spicules? Any needlelike structure. This term is very often thought of in conjunction with sponges and refers to needlelike structures produced by s

Morphology in relation to taxonomy, Q. Morphology in relation to taxonomy? ...

Q. Morphology in relation to taxonomy? Morphology is the basic tool of taxonomy, because identification is primarily based on the characters of the plant. The morphological cha

Explain the term- cerebral ischemia, Explain the term- Cerebral Ischemia ...

Explain the term- Cerebral Ischemia Ischemia refers to any of a group of disorders in which the symptoms are caused by vessel blockage preventing a sufficient supply of blood t

Show extraembryonic membranes present in vertebrates, Q. What are the extra...

Q. What are the extraembryonic membranes present in vertebrates? The extraembryonic membranes that may be present in vertebrates are the yolk sac, the amnion, the placenta, the

What is a biosphere?, What is a biosphere? A biosphere is a set of all ...

What is a biosphere? A biosphere is a set of all of the ecosystems of the planet.

Explain empiric initial therapy, Empiric Initial Therapy  Until suscept...

Empiric Initial Therapy  Until susceptibility results are available, empiric initial treatment consists of a 4-drug regimen of isoniazid, rifampin, pyrazinamide and ethambutol.

Assuming the equilibrium potential for sodium ion, Assuming that the equili...

Assuming that the equilibrium potential for sodium ion across a skeletal muscle is +66 mv at a temperature of 37 degree celcius when the external concentration is 145 mM and the in

Uricotelic excretion essential for avian and reptile embryos, Why is the ur...

Why is the uricotelic excretion essential for avian and reptile embryos? In reptiles and birds the excretory system is uricotelic as uric acid is insoluble, less toxic and sui

Test tube baby, TEST TUBE BABY - Ova are fertilized in laboratory di...

TEST TUBE BABY - Ova are fertilized in laboratory dish (in vitra) containing a nutrient broth . It may be artificial insemination donor (AID) / Artificial insemination h

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