5v4r

From Proteopedia

(Difference between revisions)

Current revision

Crystal structure of LARP1-unique domain DM15 bound to m7GTP

Structural highlights

5v4r is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.77Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

LARP1_HUMAN RNA-binding protein that promotes translation of specific classes of mRNAs downstream of the mTORC1 complex. Associates with the mRNA 5'cap in an MTOR-dependent manner and associates with mRNAs containing a 5' terminal oligopyrimidine (5'TOP) motif, which is present in mRNAs encoding for ribosomal proteins and several components of the translation machinery. Associates with actively translating ribosomes via interaction with PABPC1/PABP and stimulates translation of mRNAs containing a 5'TOP, thereby regulating cell growth and proliferation.^[1] ^[2] ^[3]

Publication Abstract from PubMed

The 5'terminal oligopyrimidine (5'TOP) motif is a cis-regulatory RNA element located immediately downstream of the 7-methyl-guanosine [m7G] cap of TOP mRNAs, which encode ribosomal proteins and translation factors. In eukaryotes, this motif coordinates the synchronous and stoichiometric expression of the protein components of the translation machinery. La-related protein 1 (LARP1) binds TOP mRNAs, regulating their stability and translation. We present crystal structures of the human LARP1 DM15 region in complex with a 5'TOP motif, a cap analog (m7GTP), and a capped cytosine (m7GpppC) resolved to 2.6, 1.8 and 1.7 A, respectively. Our binding, competition, and immunoprecipitation data corroborate and elaborate on the mechanism of 5'TOP motif binding by LARP1. We show that LARP1 directly binds the cap and adjacent 5'TOP motif of TOP mRNAs, effectively impeding access of eIF4E to the cap and preventing eIF4F assembly. Thus, LARP1 is a specialized TOP mRNA cap-binding protein that controls ribosome biogenesis.

La-related protein 1 (LARP1) binds the mRNA cap, blocking eIF4F assembly on TOP mRNAs.,Lahr RM, Fonseca BD, Ciotti GE, Al-Ashtal HA, Jia JJ, Niklaus MR, Blagden SP, Alain T, Berman AJ Elife. 2017 Apr 5;6. pii: e24146. doi: 10.7554/eLife.24146. PMID:28379136^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Burrows C, Abd Latip N, Lam SJ, Carpenter L, Sawicka K, Tzolovsky G, Gabra H, Bushell M, Glover DM, Willis AE, Blagden SP. The RNA binding protein Larp1 regulates cell division, apoptosis and cell migration. Nucleic Acids Res. 2010 Sep;38(16):5542-53. doi: 10.1093/nar/gkq294. Epub 2010, Apr 29. PMID:20430826 doi:http://dx.doi.org/10.1093/nar/gkq294
↑ Aoki K, Adachi S, Homoto M, Kusano H, Koike K, Natsume T. LARP1 specifically recognizes the 3' terminus of poly(A) mRNA. FEBS Lett. 2013 Jul 11;587(14):2173-8. doi: 10.1016/j.febslet.2013.05.035. Epub, 2013 May 24. PMID:23711370 doi:http://dx.doi.org/10.1016/j.febslet.2013.05.035
↑ Tcherkezian J, Cargnello M, Romeo Y, Huttlin EL, Lavoie G, Gygi SP, Roux PP. Proteomic analysis of cap-dependent translation identifies LARP1 as a key regulator of 5'TOP mRNA translation. Genes Dev. 2014 Feb 15;28(4):357-71. doi: 10.1101/gad.231407.113. PMID:24532714 doi:http://dx.doi.org/10.1101/gad.231407.113
↑ Lahr RM, Fonseca BD, Ciotti GE, Al-Ashtal HA, Jia JJ, Niklaus MR, Blagden SP, Alain T, Berman AJ. La-related protein 1 (LARP1) binds the mRNA cap, blocking eIF4F assembly on TOP mRNAs. Elife. 2017 Apr 5;6. pii: e24146. doi: 10.7554/eLife.24146. PMID:28379136 doi:http://dx.doi.org/10.7554/eLife.24146

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5v4r"

Categories: Homo sapiens | Large Structures | Berman AJ | Lahr RM

@@ Line 3: / Line 3: @@
 <StructureSection load='5v4r' size='340' side='right'caption='[[5v4r]], [[Resolution|resolution]] 1.77&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5v4r]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5V4R OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5V4R FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5v4r]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5V4R OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5V4R FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MGT:7N-METHYL-8-HYDROGUANOSINE-5-TRIPHOSPHATE'>MGT</scene></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]] 1.77&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">LARP1, KIAA0731, LARP ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MGT:7N-METHYL-8-HYDROGUANOSINE-5-TRIPHOSPHATE'>MGT</scene></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=5v4r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5v4r OCA], [http://pdbe.org/5v4r PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5v4r RCSB], [http://www.ebi.ac.uk/pdbsum/5v4r PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5v4r 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=5v4r FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5v4r OCA], [https://pdbe.org/5v4r PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5v4r RCSB], [https://www.ebi.ac.uk/pdbsum/5v4r PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5v4r ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/LARP1_HUMAN LARP1_HUMAN]] RNA-binding protein that promotes translation of specific classes of mRNAs downstream of the mTORC1 complex. Associates with the mRNA 5'cap in an MTOR-dependent manner and associates with mRNAs containing a 5' terminal oligopyrimidine (5'TOP) motif, which is present in mRNAs encoding for ribosomal proteins and several components of the translation machinery. Associates with actively translating ribosomes via interaction with PABPC1/PABP and stimulates translation of mRNAs containing a 5'TOP, thereby regulating cell growth and proliferation.<ref>PMID:20430826</ref> <ref>PMID:23711370</ref> <ref>PMID:24532714</ref>
+[https://www.uniprot.org/uniprot/LARP1_HUMAN LARP1_HUMAN] RNA-binding protein that promotes translation of specific classes of mRNAs downstream of the mTORC1 complex. Associates with the mRNA 5'cap in an MTOR-dependent manner and associates with mRNAs containing a 5' terminal oligopyrimidine (5'TOP) motif, which is present in mRNAs encoding for ribosomal proteins and several components of the translation machinery. Associates with actively translating ribosomes via interaction with PABPC1/PABP and stimulates translation of mRNAs containing a 5'TOP, thereby regulating cell growth and proliferation.<ref>PMID:20430826</ref> <ref>PMID:23711370</ref> <ref>PMID:24532714</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 23: / Line 23: @@
 __TOC__
 </StructureSection>
-[[Category: Human]]
+[[Category: Homo sapiens]]
 [[Category: Large Structures]]
-[[Category: Berman, A J]]
+[[Category: Berman AJ]]
-[[Category: Lahr, R M]]
+[[Category: Lahr RM]]
-[[Category: Cap-binding]]
-[[Category: Dm15]]
-[[Category: Rna binding protein]]
-[[Category: Rna-binding]]

5v4r

From Proteopedia

Current revision

Crystal structure of LARP1-unique domain DM15 bound to m7GTP

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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