Signal-recognition-particle (SRP) assembly has a crucial role in targeting secretory proteins to the rough endoplasmic reticulum (ER) membrane. SRP is required for the cotranslational protein translocation for ER import and preferentially recognizes strongly hydrophobic signal sequences. It is involved in targeting the nascent chain-ribosome (RNC) complex to the ER and is proposed to participate in the arrest of nascent chain elongation during membrane targeting. Fungal signal recognition particle (SRP) complex consists of a 7S RNA molecule (scR1) and at least six protein subunits: SRP72, SRP68, SRP54, SEC65, SRP21 and SRP14. At least SRP14, SRP21, SRP68 and SRP72 are proposed to get assembled together with scR1 RNA as a pre-SRP complex in the nucleolus which is exported to the cytoplasm. Present with 3400 molecules/cell in log phase SD medium.