Beta oxidación Flashcards

1
Q

Activación de ácidos grasos

A

+CoA
Acilgraso CoA sintetasa

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1
Q

Carnitina aciltransferasa 1

A

Quita CoA a acilgraso CoA
Pone carnitina
Forma acilcarnitina

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2
Q

Entrada de acilcarnitina a matriz

A

Transportador de membra interna mitocondrial de sistema de carnitina

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3
Q

Cartinina aciltransferasa 2

A

Quita carnitina de acilcarnitina
Pone CoA
Forma acilgraso CoA

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4
Q
  1. Acilgraso CoA a trans-2-enoil-CoA
A

Acil CoA deshidrogenasa
Quita 2 hidrogenos de acilgraso CoA
+FADH
doble enlace

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5
Q
  1. Trans-2-enoil-CoA a 3-hidroxiacil-CoA
A

2,3-enoil CoA hidratasa
hidratación

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6
Q
  1. 3-hidroxiacil-CoA a 3-cetoacil CoA
A

3-hidroxiacil CoA deshidrogenasa
oxidorreducción

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7
Q

Beta-cetoacil-CoA tiolasa

A

lisis de 3-cetoacil CoA
forma acilgraso CoA y acetil CoA

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8
Q

Beta oxidación en insaturados

A

Normal hasta doble enlace
Doble enlace debe ser b=a
Enoil CoA isomerasa reubica doble enlace formando trans-2-enoil-CoA
no se produce FAH2

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9
Q

Beta oxidación en impar

A

Productos son acetil CoA y popionil CoA

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10
Q

Propionil CoA a succinil CoA

A

Propionil-CoA
Propionil-CoA carboxilasa
D-Metilcarbonil-CoA
Metilmalonil-CoA racemasa
L-Metilmalonil-CoA
Metilmalonil-CoA mutasa
Succinil CoA

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11
Q

Succinil resultante de propionil CoA de impares

A

Entra a ciclo de Krebs
Recupera 4 ATPs

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12
Q

Regulación de betaoxidación

A

Lanzadera de Carnitina
CAT 1
Permite a acidos grasos entrar a mitocondria

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13
Q

Reacciones de beta oxidación

A
  • Acilgraso CoA
    Acil CoA deshidrogenasa
  • Trans-2-enoil-CoA
    2,3-enoil-CoA hidratasa
  • 3-hidroxiacil-CoA
    3-hidroxiacil CoA deshidrogenasa
  • 3-cetoacil CoA
    Beta-cetoacil-CoA tiolasa
  • Acetil CoA y Acilgraso CoA
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14
Q

Tipos de reacciones en beta oxidación

A

Doble enlace
Hidratación
Oxidorreducción
Lisis

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15
Q

Ácidos que usan lanzadera de carnitina

A

Los de cadena larga
Cadena media y corta pasan libremente cuando estan activados (CoA)