what are the genetic defects in urea cycle?
A blockage of carbamoyl phosphate synthesis or any of the 4
steps of urea cycle has serious consequences because there
is no alternate pathway for synthesis of urea.
They all lead to an elevated level of NH4 ion in blood
(HYPER AMMONEMIA)SOME OF GENETIC DEFECTS BECOME EVIDENT
AFTER A DAY OR TWO AFTER BIRTH.
infant becomes lethargic and becomes periodically.
High levels of NH4 ion are toxic because elevated levels of
glutamine lead directly to brain damage.
alpha -ketoglutarate-.glutamate->glutamine
people cannot tolerate protein rich diet because aminoacids
ingested in excess would be deaminated in liver producing
free ammonia in blood which is toxic to humans.
people with defects in urea cycle treated by substituting
in diet alpha-keto acid analogues of essential aminoacids.
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what is antiinfective vitamin?
When s subunit dissociates from an initiated RNA polymerase, a) it can bind a core enzyme to reform holoenzyme. b) it hydrolyzes ATP until rebound by core enzyme. c) it leaves behind an elongating species complexed with Rho factor. d) it remains bound to the promoter consensus sequence.
hormones from echinodermata?
What features do the helix and the sheet have in common?
Why does the pH of the blood decrease in a person who has digested trematol?
Who proposed law of mass action?
Who were james watson, francis crik and maurice wilkins?
Aldehydes and ketones are known as?
What is xeroderma pigmentosum?
what is acidosis and alkalosis in terms of PH?
What is threshold energy?
What are the three main types of rna? What is meant by heterogeneous rna?