SRP54 Antibody / Signal recognition particle 54 kDa protein, 100ug

SRP54 antibody targets Signal recognition particle 54 kDa protein, encoded by the SRP54 gene. Signal recognition particle 54 kDa protein is a core component of the signal recognition particle (SRP), a ribonucleoprotein complex that mediates co-translational targeting of nascent polypeptides to the endoplasmic reticulum membrane. SRP54 is primarily localized in the cytoplasm and associates transiently with ribosomes, where it recognizes signal peptides emerging from the ribosomal exit tunnel. This interaction is essential for directing secretory and membrane proteins into the correct cellular trafficking pathway.<br><br>Functionally, Signal recognition particle 54 kDa protein serves as the signal peptide-binding and GTPase subunit of the SRP complex. Upon binding a signal sequence, SRP54 pauses translation and facilitates docking of the ribosome-nascent chain complex to the SRP receptor at the endoplasmic reticulum membrane. Subsequent GTP-dependent interactions between SRP54 and the SRP receptor coordinate transfer of the translating ribosome to the translocon, allowing protein synthesis to resume with concurrent translocation into or insertion across the membrane. A SRP54 antibody supports studies focused on protein targeting, translation regulation, and secretory pathway biology.<br><br>SRP54 is ubiquitously expressed across tissues and cell types, reflecting the universal requirement for accurate targeting of secreted and membrane proteins. Cells with high secretory activity, such as plasma cells and glandular epithelial cells, rely heavily on efficient SRP function to maintain protein homeostasis. SRP54 interacts with SRP RNA and other SRP subunits to form a functional complex, and these interactions are tightly regulated to ensure fidelity and efficiency of protein targeting during translation.<br><br>From a disease-relevance perspective, alterations in SRP54 function have been linked to defects in protein secretion and cellular stress responses. Mutations in SRP54 have been associated with congenital neutropenia and related hematological disorders, highlighting the importance of proper co-translational targeting for immune cell development and function. Disruption of SRP-mediated trafficking can also contribute to endoplasmic reticulum stress and impaired protein folding, processes that are implicated in a wide range of pathological conditions. These findings underscore the relevance of SRP54 in studies of protein biogenesis and disease-associated trafficking defects.<br><br>At the molecular level, Signal recognition particle 54 kDa protein contains conserved domains required for signal peptide recognition and GTP binding, enabling its role as a regulatory switch during protein targeting. Post-translational modifications and dynamic interactions with ribosomes and membranes can influence its behavior in biochemical assays and SDS-PAGE without implying changes in primary sequence. A SRP54 antibody supports research applications focused on translational control, secretory pathway regulation, and disease-associated disruptions of protein targeting, with NSJ Bioreagents providing reagents intended for research use.

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