English to Spanish Science Biology (-tech,-chem,micro-) biochemistry

Saludos.
Por favor cuál sería la correcta traducción.
Gracias por su trabajo

Bacillus subtilis: from soil bacterium to super-secreting
cell factory

The secreted proteins of B. subtilis usually contain N-terminal
signal peptides that are important for export
from the cytoplasm. These signal peptides are composed
of three characteristic domains generally known as the
N-, H- and C-regions [13,20]. Arginine or lysine residues
in the N-region interact with the translocation machinery
and negatively charged phospholipids in the cell
membrane. The H-region comprises hydrophobic residues
that adopt an alpha-helical conformation, which is
necessary for the initiation of protein translocation
across the membrane. The C-region contains the recognition
and cleavage sites for signal peptidases (SPases)
that cleave off the signal peptide to release the mature
protein from the membrane during or shortly after
translocation [21]. Cleaved signal peptides are then
targeted for degradation by the ‘site-2’ membrane protease
RasP, and possibly other membrane-associated
proteases [20-22].