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qaws [65]
3 years ago
9

La xerodermia pigmentosa es una enfermedad genetica , más común en Israel, Egipto y Japón que en el resto del mundo . Las person

as afectadas por este mal, sufren daños en piel y ojos al exponerse al sol y presentan un alto riesgo de manifestar cancer de piel. La enfermedad ocurre por una mutación que altera la secuencia de aminoácidos de un grupo de enzimas llamadas fotoliasas . ¿A que estructura de las proteínas afecta esta enfermedad?
Biology
1 answer:
Mars2501 [29]3 years ago
4 0

Answer:

Afecta a la estructura primaria de las proteínas.

Explanation:

Las proteínas tienen 4 niveles de estructura:

  1. Estructura primaria: es la secuencia de aminoácidos que forman la cadena peptídica de la proteína.
  2. Estructura secundaria: es el plegamiento de la cadena por unión con aminoácidos de la misma cadena dándole a la proteína la forma de alfa hélice o de lámina plegada.
  3. Estructura terciaria: la estructura secundaria de la proteína se pliega dando a la proteína una estructura globular, la cual hace a la proteína soluble, o fibrilar, la cual hace a la proteína insoluble.
  4. Estructura cuaternaria: dos o más proteínas con estructura terciaria se unen.

Si la xerodermia afecta la secuencia de aminoácidos, afecta la estructura primaria de la proteína ya que esta es el orden en que los aminoácidos se juntan para formar la cadena peptídica.

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