The enymatic rate constant (kcat/Km) of orotidine 5ʹ-phosphate decarboxylase is 6 x 10⁷ M^-1s^-1 and the nonenzymatic rate constant (kn) is 3 x 10^-16 s^-1.  What is the value of the enzymeʹs catalytic proficiency?

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#Question id: 1681

#Section 2: General Biology

What do MHC class III genes encode?

TLS Online TPP Program

#Question id: 1682

#Section 2: General Biology

Extensive allelic polymorphism is found in MHC:

TLS Online TPP Program

#Question id: 1683

#Section 2: General Biology

Expression of MHC genes is:

TLS Online TPP Program

#Question id: 1684

#Section 2: General Biology

What are the molecules mediating signal transduction following antigen binding to cell surface immunoglobulin on a B-cell called?

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#Question id: 1686

#Section 2: General Biology

A hapten is best defined as being:

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#Question id: 1687

#Section 2: General Biology

A discontinuous antigen epitope is: