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| | <StructureSection load='6noc' size='340' side='right'caption='[[6noc]], [[Resolution|resolution]] 2.85Å' scene=''> | | <StructureSection load='6noc' size='340' side='right'caption='[[6noc]], [[Resolution|resolution]] 2.85Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6noc]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Caeel Caeel]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6NOC OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6NOC FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6noc]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Caenorhabditis_elegans Caenorhabditis elegans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6NOC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6NOC FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">fbf-2, F21H12.5 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6239 CAEEL])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.849Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6noc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6noc OCA], [http://pdbe.org/6noc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6noc RCSB], [http://www.ebi.ac.uk/pdbsum/6noc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6noc ProSAT]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6noc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6noc OCA], [https://pdbe.org/6noc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6noc RCSB], [https://www.ebi.ac.uk/pdbsum/6noc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6noc ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/FBF2_CAEEL FBF2_CAEEL]] Involved in the control of stem cells and sex determination in the C.elegans hermaphrodite germline. May also play a role in the hermaphrodite germline proliferation and oogenesis. Binds specifically to the regulatory region of fem-3 3'-UTR and mediates the sperm/oocyte switch. Negatively regulates gld-3 expression possibly by directly binding to two sites within the gld-3 isoform B 3'-UTR.<ref>PMID:9393998</ref> <ref>PMID:15454534</ref> | + | [https://www.uniprot.org/uniprot/FBF2_CAEEL FBF2_CAEEL] Involved in the control of stem cells and sex determination in the C.elegans hermaphrodite germline. May also play a role in the hermaphrodite germline proliferation and oogenesis. Binds specifically to the regulatory region of fem-3 3'-UTR and mediates the sperm/oocyte switch. Negatively regulates gld-3 expression possibly by directly binding to two sites within the gld-3 isoform B 3'-UTR.<ref>PMID:9393998</ref> <ref>PMID:15454534</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Caeel]] | + | [[Category: Caenorhabditis elegans]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Hall, T M.T]] | + | [[Category: Hall TMT]] |
| - | [[Category: McCann, K]] | + | [[Category: McCann K]] |
| - | [[Category: Qiu, C]] | + | [[Category: Qiu C]] |
| - | [[Category: Wang, Y]] | + | [[Category: Wang Y]] |
| - | [[Category: Pum repeat protein]]
| + | |
| - | [[Category: Rna binding protein]]
| + | |
| - | [[Category: Rna binding protein-rna complex]]
| + | |
| Structural highlights
Function
FBF2_CAEEL Involved in the control of stem cells and sex determination in the C.elegans hermaphrodite germline. May also play a role in the hermaphrodite germline proliferation and oogenesis. Binds specifically to the regulatory region of fem-3 3'-UTR and mediates the sperm/oocyte switch. Negatively regulates gld-3 expression possibly by directly binding to two sites within the gld-3 isoform B 3'-UTR.[1] [2]
Publication Abstract from PubMed
PUF (PUmilio/FBF) RNA-binding proteins recognize distinct elements. In C. elegans, PUF-8 binds to an 8-nt motif and restricts proliferation in the germline. Conversely, FBF-2 recognizes a 9-nt element and promotes mitosis. To understand how motif divergence relates to biological function, we first determined a crystal structure of PUF-8. Comparison of this structure to that of FBF-2 revealed a major difference in a central repeat. We devised a modified yeast 3-hybrid screen to identify mutations that confer recognition of an 8-nt element to FBF-2. We identified several such mutants and validated structurally and biochemically their binding to 8-nt RNA elements. Using genome engineering, we generated a mutant animal with a substitution in FBF-2 that confers preferential binding to the PUF-8 element. The mutant largely rescued overproliferation in animals that spontaneously generate tumors in the absence of puf-8. This work highlights the critical role of motif length in the specification of biological function.
Engineering a conserved RNA regulatory protein repurposes its biological function in vivo.,Bhat VD, McCann KL, Wang Y, Fonseca DR, Shukla T, Alexander JC, Qiu C, Wickens M, Lo TW, Tanaka Hall TM, Campbell ZT Elife. 2019 Jan 17;8. pii: 43788. doi: 10.7554/eLife.43788. PMID:30652968[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Zhang B, Gallegos M, Puoti A, Durkin E, Fields S, Kimble J, Wickens MP. A conserved RNA-binding protein that regulates sexual fates in the C. elegans hermaphrodite germ line. Nature. 1997 Dec 4;390(6659):477-84. PMID:9393998 doi:10.1038/37297
- ↑ Eckmann CR, Crittenden SL, Suh N, Kimble J. GLD-3 and control of the mitosis/meiosis decision in the germline of Caenorhabditis elegans. Genetics. 2004 Sep;168(1):147-60. PMID:15454534 doi:10.1534/genetics.104.029264
- ↑ Bhat VD, McCann KL, Wang Y, Fonseca DR, Shukla T, Alexander JC, Qiu C, Wickens M, Lo TW, Tanaka Hall TM, Campbell ZT. Engineering a conserved RNA regulatory protein repurposes its biological function in vivo. Elife. 2019 Jan 17;8. pii: 43788. doi: 10.7554/eLife.43788. PMID:30652968 doi:http://dx.doi.org/10.7554/eLife.43788
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