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RPS17
RPS17 Full Name
ribosomal protein S17
RPS17 Introduction
Ribosomal protein S17 (RPS17) is a highly conserved structural component of the eukaryotic 40S small ribosomal subunit and is encoded by the RPS17 gene. Although traditionally recognized for its indispensable role in ribosome biogenesis and protein translation, growing evidence suggests that RPS17 has broader biological significance extending beyond housekeeping functions. Researchers investigating congenital bone marrow failure syndromes, ribosome assembly defects, or translational regulation frequently encounter RPS17 because alterations in this gene can disrupt ribosomal maturation and cellular protein synthesis, ultimately impairing rapidly proliferating tissues. Recent reviews on ribosome assembly and specialized ribosomes have further emphasized that individual ribosomal proteins, including RPS17, contribute to the quality control, stability, and functional specialization of ribosomes rather than serving as interchangeable structural components. This evolving understanding has made RPS17 an important target for studies exploring translational control, ribosome heterogeneity, developmental biology, and human genetic disorders.
The primary function of RPS17 is to participate in the assembly and structural integrity of the 40S ribosomal subunit, enabling accurate mRNA decoding and efficient protein synthesis. During ribosome biogenesis, RPS17 cooperates with ribosomal RNA processing factors and other ribosomal proteins to ensure proper maturation of pre-ribosomal particles before they become translation-competent. Beyond its canonical translational role, accumulating evidence indicates that ribosomal proteins possess diverse extra-ribosomal or "moonlighting" activities that influence cellular stress responses, inflammatory signaling, apoptosis, cell-cycle regulation, and tissue development. Although these noncanonical functions have been characterized more extensively for several other ribosomal proteins, recent reviews provide a conceptual framework suggesting that RPS17 may also participate in regulatory pathways outside the ribosome under specific physiological or pathological conditions. Consequently, RPS17 has become increasingly relevant in studies investigating how ribosome dysfunction affects cellular homeostasis, immune regulation, and developmental processes.
From a disease perspective, RPS17 is best known as one of the pathogenic genes associated with Diamond-Blackfan anemia (DBA), a rare inherited ribosomopathy characterized by defective erythropoiesis, congenital abnormalities, and an increased lifetime risk of malignancy. Pathogenic variants in RPS17 account for approximately 1–3% of genetically diagnosed DBA cases, making molecular analysis of this gene an established component of modern diagnostic workflows and international clinical recommendations. The expanding understanding of DBA has also reinforced the broader concept that defects in ribosomal proteins produce tissue-specific phenotypes despite their universal cellular expression. Beyond DBA, dysregulation of ribosomal proteins has been increasingly linked to cancer biology, inflammatory diseases, and reproductive development, where altered translational capacity and disrupted ribosome homeostasis may contribute to disease initiation or progression. Although direct evidence specifically implicating RPS17 in these conditions remains limited compared with other ribosomal proteins, current research positions RPS17 as a biologically important candidate for ribosomopathy research, biomarker discovery, and investigations into translation-dependent therapeutic strategies.
Alternate Names for RPS17
RPS17; ribosomal protein S17; 40S ribosomal protein S17; MGC72007; RPS17L1; RPS17L2; S17; DBA4; RPS17L;
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