Control postranscripcional (RNA) Flashcards

(16 cards)

1
Q

RNA estructurales

A

RNAt
RNAr
RNAsn (splicing)
RNA sno (ribosoma)

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2
Q

RNA regulatorios

A

miRNA
siRNA
piRNA

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3
Q

Tipos de RNA (4)

A

Estructurales
Regulatorios
Codificantes
Largos (incRNA)

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4
Q

¿Qué hacen los snRNA?

A

Corte y empalme (splicing)

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5
Q

¿Cuál es el único RNA codificante?

A

RNAm

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6
Q

Función del miRNA (2)

A

Degrada RNAm
Inhibe traducción

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7
Q

¿Quién se une parcial y completamente al RNAm?

A

miRNA

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8
Q

¿Qué complejos utiliza miRNA?

A

Drosha (corta)
RISC (Argonauta)

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9
Q

Funciones siRNA

A

Degrada RNAm ESPECÍFICO

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10
Q

¿Quién se complementa totalmente o no se complementa?

A

siRNA

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11
Q

¿Qué complejos utilizan los siRNA?

A

Dicer (corta)
RISC (Argonauta)

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12
Q

siRNA se une a (uno/múltiple) mRNA mientras que miRNA se une a (uno/multilpe) RNAm

A

uno
múltiple

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13
Q

¿De dónde surgen los IncRNA? (3)

A

(RNA largos)
Intrones
piRNA + piRNA
Regiones de un mismo gen

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14
Q

Funciones de los incRNA (5)

A

Agrupa o inhibe miRNAS
Bloquea maduración de RNAm
Asocia ribosomas (inhibir/activar traducción)
Señal para expresar IRES
Inhibe IF4

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15
Q

Función de los piRNA

A

Regulan expresión génica o epigenética
TRANSPOSONES

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16
Q

Proteínas asociadas a piRNAS