| Structural highlights
Function
[SHE2_YEAS1] RNA-binding protein that binds specific mRNAs including the ASH1 mRNA, coding for a repressor of the HO endonuclease. Part of the mRNA localization machinery that restricts accumulation of certain proteins to the bud and in the daughter cell. Recruits the MYO4-SHE3 complex to the ASH1 mRNA. Recruits also LOC1 and PUF6 to ASH1 mRNA, which are required for translational repression of this mRNA (By similarity). [SHE3_YEAST] RNA-binding protein that binds specific mRNAs including the ASH1 mRNA, coding for a repressor of the HO endonuclease. Part of the mRNA localization machinery that restricts accumulation of certain proteins to the bud and in the daughter cell. Required for the delivery of cortical endoplasmic reticulum into the emerging bud.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
Publication Abstract from PubMed
mRNA localization is an essential mechanism of gene regulation and is required for processes such as stem-cell division, embryogenesis and neuronal plasticity. It is not known which features in the cis-acting mRNA localization elements (LEs) are specifically recognized by motor-containing transport complexes. To the best of our knowledge, no high-resolution structure is available for any LE in complex with its cognate protein complex. Using X-ray crystallography and complementary techniques, we carried out a detailed assessment of an LE of the ASH1 mRNA from yeast, its complex with its shuttling RNA-binding protein She2p, and its highly specific, cytoplasmic complex with She3p. Although the RNA alone formed a flexible stem loop, She2p binding induced marked conformational changes. However, only joining by the unstructured She3p resulted in specific RNA recognition. The notable RNA rearrangements and joint action of a globular and an unfolded RNA-binding protein offer unprecedented insights into the step-wise maturation of an mRNA-transport complex.
Molecular architecture and dynamics of ASH1 mRNA recognition by its mRNA-transport complex.,Edelmann FT, Schlundt A, Heym RG, Jenner A, Niedner-Boblenz A, Syed MI, Paillart JC, Stehle R, Janowski R, Sattler M, Jansen RP, Niessing D Nat Struct Mol Biol. 2017 Jan 16. doi: 10.1038/nsmb.3351. PMID:28092367[12]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Bertrand E, Chartrand P, Schaefer M, Shenoy SM, Singer RH, Long RM. Localization of ASH1 mRNA particles in living yeast. Mol Cell. 1998 Oct;2(4):437-45. PMID:9809065
- ↑ Beach DL, Salmon ED, Bloom K. Localization and anchoring of mRNA in budding yeast. Curr Biol. 1999 Jun 3;9(11):569-78. PMID:10359695
- ↑ Munchow S, Sauter C, Jansen RP. Association of the class V myosin Myo4p with a localised messenger RNA in budding yeast depends on She proteins. J Cell Sci. 1999 May;112 ( Pt 10):1511-8. PMID:10212145
- ↑ Bohl F, Kruse C, Frank A, Ferring D, Jansen RP. She2p, a novel RNA-binding protein tethers ASH1 mRNA to the Myo4p myosin motor via She3p. EMBO J. 2000 Oct 16;19(20):5514-24. PMID:11032818 doi:http://dx.doi.org/10.1093/emboj/19.20.5514
- ↑ Long RM, Gu W, Lorimer E, Singer RH, Chartrand P. She2p is a novel RNA-binding protein that recruits the Myo4p-She3p complex to ASH1 mRNA. EMBO J. 2000 Dec 1;19(23):6592-601. PMID:11101531 doi:http://dx.doi.org/10.1093/emboj/19.23.6592
- ↑ Kruse C, Jaedicke A, Beaudouin J, Bohl F, Ferring D, Guttler T, Ellenberg J, Jansen RP. Ribonucleoprotein-dependent localization of the yeast class V myosin Myo4p. J Cell Biol. 2002 Dec 23;159(6):971-82. Epub 2002 Dec 23. PMID:12499354 doi:http://dx.doi.org/10.1083/jcb.200207101
- ↑ Estrada P, Kim J, Coleman J, Walker L, Dunn B, Takizawa P, Novick P, Ferro-Novick S. Myo4p and She3p are required for cortical ER inheritance in Saccharomyces cerevisiae. J Cell Biol. 2003 Dec 22;163(6):1255-66. PMID:14691136 doi:http://dx.doi.org/10.1083/jcb.200304030
- ↑ Gonsalvez GB, Lehmann KA, Ho DK, Stanitsa ES, Williamson JR, Long RM. RNA-protein interactions promote asymmetric sorting of the ASH1 mRNA ribonucleoprotein complex. RNA. 2003 Nov;9(11):1383-99. PMID:14561888
- ↑ Gonsalvez GB, Little JL, Long RM. ASH1 mRNA anchoring requires reorganization of the Myo4p-She3p-She2p transport complex. J Biol Chem. 2004 Oct 29;279(44):46286-94. Epub 2004 Aug 23. PMID:15328357 doi:http://dx.doi.org/10.1074/jbc.M406086200
- ↑ Schmid M, Jaedicke A, Du TG, Jansen RP. Coordination of endoplasmic reticulum and mRNA localization to the yeast bud. Curr Biol. 2006 Aug 8;16(15):1538-43. PMID:16890529 doi:http://dx.doi.org/10.1016/j.cub.2006.06.025
- ↑ Landers SM, Gallas MR, Little J, Long RM. She3p possesses a novel activity required for ASH1 mRNA localization in Saccharomyces cerevisiae. Eukaryot Cell. 2009 Jul;8(7):1072-83. Epub 2009 May 8. PMID:19429778 doi:http://dx.doi.org/EC.00084-09
- ↑ Edelmann FT, Schlundt A, Heym RG, Jenner A, Niedner-Boblenz A, Syed MI, Paillart JC, Stehle R, Janowski R, Sattler M, Jansen RP, Niessing D. Molecular architecture and dynamics of ASH1 mRNA recognition by its mRNA-transport complex. Nat Struct Mol Biol. 2017 Jan 16. doi: 10.1038/nsmb.3351. PMID:28092367 doi:http://dx.doi.org/10.1038/nsmb.3351
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