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6GX6

Crystal structure of IMP3 RRM12 in complex with RNA (ACAC)

Summary for 6GX6
Entry DOI10.2210/pdb6gx6/pdb
Related6FQ1 6FQR
DescriptorInsulin-like growth factor 2 mRNA-binding protein 3, RNA (5'-R(*AP*CP*AP*C)-3'), 1,2-ETHANEDIOL, ... (5 entities in total)
Functional Keywordsrna recognition motif (rrm), imp3, igf2bp3, crystal structure., rna binding protein
Biological sourceHomo sapiens (Human)
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Total number of polymer chains2
Total formula weight20616.60
Authors
Jia, M.,Gut, H.,Chao, A.J. (deposition date: 2018-06-26, release date: 2018-09-05, Last modification date: 2024-01-17)
Primary citationJia, M.,Gut, H.,Chao, J.A.
Structural basis of IMP3 RRM12 recognition of RNA.
RNA, 24:1659-1666, 2018
Cited by
PubMed Abstract: The IMP family of RNA binding proteins, also named as insulin-like growth factor 2 (IGF2) mRNA-binding proteins (IGF2BPs), are highly conserved RNA regulators that are involved in many RNA processing stages, including mRNA stability, localization, and translation. There are three paralogs in the IMP family, IMP1-3, in mammals that all adopt the same domain arrangement with two RNA recognition motifs (RRM) in the N terminus and four KH domains in the C terminus. Here, we report the structure and biochemical characterization of IMP3 RRM12 and its complex with two short RNAs. These structures show that both RRM domains of IMP3 adopt the canonical RRM topology with two α-helices packed on an anti-parallel four stranded β-sheet. The spatial orientation of RRM1 to RRM2 is unique compared with other known tandem RRM structures. In the IMP3 RRM12 complex with RNA, only RRM1 is involved in RNA binding and recognizes a dinucleotide sequence.
PubMed: 30135093
DOI: 10.1261/rna.065649.118
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2 Å)
Structure validation

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