An 8-month-old boy baby is evaluated because of repeated episodes of pneumococcal pneumoniA Serum studies demonstrate very low levels of IgM, IgG, and IgA This patient’s condition is related to a deficiency of which of the following proteins?
Correct Answer: Tyrosine kinase
Description: As the history is of recurrent infections with bacteria (pneumococcal pneumonia), it indicates primary humoral immunodeficiency. As this is occurring in a 8-month old male child, it indicates X-linked agammaglobulinaemia also called as buon's agammaglobulinaemia. In this disorder there is deficiency of the enzyme tyrosine kinase, which is required for B cell maturation
Category:
Microbiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now