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Encapsulin cargo loading: progress and potential
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DOI：10.1039/d3tb00288h.png)
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摘要
En 中文
Encapsulins are a recently discovered class of prokaryotic self-assembling icosahedral protein nanocompartments measuring between 24 and 42 nm in diameter, capable of selectively encapsulating dedicated cargo proteins in vivo. They have been classified into four families based on sequence identity and operon structure, and thousands of encapsulin systems have recently been computationally identified across a wide range of bacterial and archaeal phyla. Cargo encapsulation is mediated by the presence of specific targeting motifs found in all native cargo proteins that interact with the interior surface of the encapsulin shell during self-assembly. Short C-terminal targeting peptides (TPs) are well documented in Family 1 encapsulins, while more recently, larger N-terminal targeting domains (TDs) have been discovered in Family 2. The modular nature of TPs and their facile genetic fusion to non-native cargo proteins of interest has made cargo encapsulation, both in vivo and in vitro, readily exploitable and has therefore resulted in a range of rationally engineered nano-compartmentalization systems. This review summarizes current knowledge on cargo protein encapsulation within encapsulins and highlights select studies that utilize TP fusions to non-native cargo in creative and useful ways.
Keyword:
IN-VITRO
ENZYME ENCAPSULATION
IRON-STORAGE
PROTEIN CAGE
BACTERIAL
NANOCOMPARTMENT
DELIVERY
COMPARTMENTALIZATION
NANOPARTICLES
EVOLUTION
期刊
IF:
5.7
论文数:
1.1W
被引数:
4.8W
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