New insights on the function of SCF ubiquitin E3 ligases in the lung

NM Weathington, RK Mallampalli - Cellular signalling, 2013 - Elsevier
NM Weathington, RK Mallampalli
Cellular signalling, 2013Elsevier
Recent developments in pulmonary cell biology have shown that the maintenance of protein
concentrations, proteostasis, is an integral process of all biologic systems. The balance of
available protein is the sum total of three key elements of cell metabolism: production by
transcription and translation, compartmentalization through processing and sorting, and
proteolytic degradation of proteins at any stage of their life-span. Considerable advances
are constantly made in each of these three essential fields, and our appreciation for the …
Recent developments in pulmonary cell biology have shown that the maintenance of protein concentrations, proteostasis, is an integral process of all biologic systems. The balance of available protein is the sum total of three key elements of cell metabolism: production by transcription and translation, compartmentalization through processing and sorting, and proteolytic degradation of proteins at any stage of their life-span. Considerable advances are constantly made in each of these three essential fields, and our appreciation for the diversity of mechanisms of protein degradation has expanded greatly in the last decade. The ubiquitin proteasome system (UPS) has emerged as the predominant protein degradation pathway in eukaryotes, with the large cullin-RING family of E3 ligases responsible for ubiquitination of a broad array of proteins to be degraded. The Skip-Cullin-F-box (SCF) ubiquitin E3 ligase superfamily is the largest family of cullin-RING ligases, with interchangeable F-box proteins orchestrating the trafficking proteins for ubiquitination and degradation. We will discuss the best characterized and most recent developments in the role of this intriguing family of proteins in normal physiology and disorders of the lungs.
Elsevier
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