| Description | Small (300 nucleotides) stable RNAs transcribed by RNA pol III that are part of the signal-recognition particle (SRP). This particle comprises one RNA and six proteins bound to the RNA. SRP function is to assist secretory proteins sorting in the endoplasmic reticulum (ER). SRP is a cytosolic particle that transiently binds to the ER signal sequence of a nascent protein, to the large ribosomal unit, and to the SRP receptor in the ER membrane. | Namespace | PSI-MI |
| Obsolete | false |
