Definition: Translate the given Spanish text to English

Positive Example 1 -
Input: A method for converting a series of m-bit information words to a modulated signal is described.
Output: Se describe un método para convertir una serie de palabras de informacion de bits m a una señal modulada.

Positive Example 2 -
Input: A last plastic cover is applied as a final protection.
Output: La presente invencion comprende un nuevo mezclador termocinetico.

Negative Example 1 -
Input: Luminescent optical sensor.
Output: SENSOR OPTICO LUMINISCENTE.

Negative Example 2 -
Input: The urinal is similar to a common toilet.
Output: El común es similar a un inodoro orinal.

Now complete the following example -
Input: Alanine 2,3-aminomutase sequences are disclosed, as are cells having alanine 2,3-aminomutase activity and methods of selecting for such cells.
Output: Se divulgan secuencias de alanina 2,3-aminomutasa, como son celulas que tienen actividad de alanina 2,3-aminomutasa y metodos para seleccionar tales celulas.