Lysosomal Storage Diseases 01

Topic: Adult

Created on Friday, February 16 2007 by jdmiles

Last modified on .

 
        A) Sulfamidase
 
        B) ß-Subunit ß-hexosaminidase
 
        C) A-Fucosidase
 
        D) GM2 activator
 
        E) A-Neuraminidase
 

 

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This question was created on February 16, 2007 by jdmiles.
This question was last modified on .

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) Sulfamidase

This answer is incorrect.

Sulfamidase is an enzyme which is deficient in MPS IIIA (Sanfilippo disease type A). This deficiency is associated with a genetic defect at 17q25.3.  (See References)

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B) ß-Subunit ß-hexosaminidase

This answer is incorrect.

ß-Subunit ß-hexosaminidase is an enzyme which is deficient in Sandhoff disease. This deficiency is associated with a genetic defect at 5q13.  (See References)

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C) a-Fucosidase

This answer is correct.

A-Fucosidase is an enzyme which is deficient in a-Fucosidosis. This deficiency is associated with a genetic defect at 1p34.1-36.1.  (See References)

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D) GM2 activator

This answer is incorrect.

GM2 activator is an enzyme which is deficient in AB variant GM2-gangliosidosis. This deficiency is associated with a genetic defect at 5q32-33.  (See References)

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E) a-Neuraminidase

This answer is incorrect.

A-Neuraminidase is an enzyme which is deficient in Sialidosis. This deficiency is associated with a genetic defect at 6p21.3.  (See References)

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References:

1. Pastores, G.M., and Kolodny, E.H. (2004). Inborn errors of metabolism of the nervous system. In Bradley, W.G., Daroff, R.B., Fenichel, G.M., and Jankovic, J. (Eds.). Neurology in Clinical Practice, 4th Edition. Butterworth Heinemann, Philadelphia. Pp. 1811-1832.

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adult
Lysosomal Storage Diseases 01
Question ID: 02160701
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 02/16/2007
Modified:
Estimated Permutations: 0