Metabolismo de aminoácidos aromáticos Flashcards

1
Q

El metabolismo de la fenilalanina inicia por

A

Su oxidación a tirosina

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2
Q

Cataliza la reacción entre fenilalanina, oxígeno y tetrahidrobiopterina para formar tirosina

A

Fenilalanina hidroxilasa

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3
Q

Cataliza la reacción de los 2 átomos de O con los 2 átomos de C

A

Homogentisato dioxigenasa

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4
Q

La reacción inicial que es catalizada por tirosina hidroxilasa es dependiente de ___

A

Cobre

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5
Q

La tirosina es precursor de

A

Adrenalina y Noradrenalina

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6
Q

Enzima dependiente de fosfato de piridoxal que forma dopamina

A

Dopa descarboxilasa (utiliza vitamina C para formar noradrenalina)

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7
Q

Deficiencia de la fenilalanina hidroxilasa

A

Fenilcetonuria

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8
Q

Deficiencia de fumarilacetoacetato hidrolasa

A

Tirosinemia tipo 1

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9
Q

Deficiencia de tirosina aminotransferasa

A

Tirosinemia tipo 2

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10
Q

Deficiencia de la hormona homogentísico oxidasa

A

Alcaptonuria

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11
Q

Producido por la deficiencia de tirosinasa en los melanosomas de los melanocitos

A

Albinismo

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