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4OLB

Crystal Structure of Human Argonaute2 Bound to Tryptophan

Replaces:  4EI3
Summary for 4OLB
Entry DOI10.2210/pdb4olb/pdb
Related4OLA
DescriptorProtein argonaute-2, 5'-R(P*AP*AP*AP*AP*AP*AP*AP*AP*AP*U)-3', TRYPTOPHAN, ... (4 entities in total)
Functional Keywordsrna-binding protein, rna interference, protein-rna complex, ago, hydrolase-rna complex, hydrolase/rna
Biological sourceHomo sapiens (human)
More
Cellular locationCytoplasm, P-body: Q9UKV8
Total number of polymer chains2
Total formula weight101010.69
Authors
Schirle, N.T.,MacRae, I.J. (deposition date: 2014-01-23, release date: 2014-02-05, Last modification date: 2023-09-20)
Primary citationSchirle, N.T.,MacRae, I.J.
The crystal structure of human Argonaute2.
Science, 336:1037-1040, 2012
Cited by
PubMed Abstract: Argonaute proteins form the functional core of the RNA-induced silencing complexes that mediate RNA silencing in eukaryotes. The 2.3 angstrom resolution crystal structure of human Argonaute2 (Ago2) reveals a bilobed molecule with a central cleft for binding guide and target RNAs. Nucleotides 2 to 6 of a heterogeneous mixture of guide RNAs are positioned in an A-form conformation for base pairing with target messenger RNAs. Between nucleotides 6 and 7, there is a kink that may function in microRNA target recognition or release of sliced RNA products. Tandem tryptophan-binding pockets in the PIWI domain define a likely interaction surface for recruitment of glycine-tryptophan-182 (GW182) or other tryptophan-rich cofactors. These results will enable structure-based approaches for harnessing the untapped therapeutic potential of RNA silencing in humans.
PubMed: 22539551
DOI: 10.1126/science.1221551
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.899 Å)
Structure validation

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数据于2025-06-18公开中

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