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Structure, function and evolution of the signal recognition particle.

ABSTRACT: The signal recognition particle (SRP) is a ribonucleoprotein particle essential for the targeting of signal peptide-bearing proteins to the prokaryotic plasma membrane or the eukaryotic endoplasmic reticulum membrane for secretion or membrane insertion. SRP binds to the signal peptide emerging from the exit site of the ribosome and forms a ribosome nascent chain (RNC)-SRP complex. The RNC-SRP complex then docks in a GTP-dependent manner with a membrane-anchored SRP receptor and the protein is translocated across or integrated into the membrane through a channel called the translocon. Recently considerable progress has been made in understanding the architecture and function of SRP.

SUBMITTER: Nagai K

PROVIDER: S-EPMC165607 | biostudies-literature | 2003 Jul

REPOSITORIES: biostudies-literature

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Structure, function and evolution of the signal recognition particle.

Nagai Kiyoshi K Oubridge Chris C Kuglstatter Andreas A Menichelli Elena E Isel Catherine C Jovine Luca L

The EMBO journal 20030701 14

The signal recognition particle (SRP) is a ribonucleoprotein particle essential for the targeting of signal peptide-bearing proteins to the prokaryotic plasma membrane or the eukaryotic endoplasmic reticulum membrane for secretion or membrane insertion. SRP binds to the signal peptide emerging from the exit site of the ribosome and forms a ribosome nascent chain (RNC)-SRP complex. The RNC-SRP complex then docks in a GTP-dependent manner with a membrane-anchored SRP receptor and the protein is tr ...[more]

PMID: 12853463

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