KEY TERMS

30S subunit

50S subunit

Shine–Dalgarno sequence

initiation factor

elongation factor Tu (EF-Tu)

accommodation

elongation factor Ts (EF-Ts)

peptidyl transferase center

elongation factor G (EF-G)

polysome

release factor

protein targeting

signal sequence

signal peptidase

signal-recognition particle (SRP)

SRP receptor (SR)

translocon

transferrin

transferrin receptor

ferritin

iron-response element (IRE)

IRE-binding protein (IRE-BP)

RNA interference (RNAi)

microRNA (miRNA)