2e33

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[[Image:2e33.png|left|200px]]
 
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{{STRUCTURE_2e33| PDB=2e33 | SCENE= }}
{{STRUCTURE_2e33| PDB=2e33 | SCENE= }}
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===Structural basis for selection of glycosylated substrate by SCFFbs1 ubiquitin ligase===
===Structural basis for selection of glycosylated substrate by SCFFbs1 ubiquitin ligase===
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{{ABSTRACT_PUBMED_17389369}}
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{{ABSTRACT_PUBMED_17389369}}
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==Function==
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[[http://www.uniprot.org/uniprot/FBX2_MOUSE FBX2_MOUSE]] Substrate recognition component of a SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex that mediates the ubiquitination and subsequent proteasomal degradation of target proteins. Involved in the endoplasmic reticulum-associated degradation pathway (ERAD) for misfolded lumenal proteins by recognizing and binding sugar chains on unfolded glycoproteins that are retrotranslocated into the cytosol and promoting their ubiquitination and subsequent degradation. Prevents formation of cytosolic aggregates of unfolded glycoproteins that have been retrotranslocated into the cytosol. Able to recognize and bind denatured glycoproteins, preferentially those of the high-mannose type.<ref>PMID:12140560</ref> <ref>PMID:15723043</ref> <ref>PMID:17720138</ref> <ref>PMID:17215248</ref> <ref>PMID:14990996</ref> [[http://www.uniprot.org/uniprot/RNAS1_BOVIN RNAS1_BOVIN]] Endonuclease that catalyzes the cleavage of RNA on the 3' side of pyrimidine nucleotides. Acts on single stranded and double stranded RNA.<ref>PMID:7479688</ref>
==About this Structure==
==About this Structure==
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[[2e33]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E33 OCA].
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[[2e33]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E33 OCA].
==Reference==
==Reference==
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<ref group="xtra">PMID:017389369</ref><references group="xtra"/>
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<ref group="xtra">PMID:017389369</ref><references group="xtra"/><references/>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
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[[Category: Mus musculus]]
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[[Category: Lk3 transgenic mice]]
[[Category: Pancreatic ribonuclease]]
[[Category: Pancreatic ribonuclease]]
[[Category: Hasegawa, Y.]]
[[Category: Hasegawa, Y.]]

Revision as of 15:24, 3 March 2014

Template:STRUCTURE 2e33

Contents

Structural basis for selection of glycosylated substrate by SCFFbs1 ubiquitin ligase

Template:ABSTRACT PUBMED 17389369

Function

[FBX2_MOUSE] Substrate recognition component of a SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex that mediates the ubiquitination and subsequent proteasomal degradation of target proteins. Involved in the endoplasmic reticulum-associated degradation pathway (ERAD) for misfolded lumenal proteins by recognizing and binding sugar chains on unfolded glycoproteins that are retrotranslocated into the cytosol and promoting their ubiquitination and subsequent degradation. Prevents formation of cytosolic aggregates of unfolded glycoproteins that have been retrotranslocated into the cytosol. Able to recognize and bind denatured glycoproteins, preferentially those of the high-mannose type.[1] [2] [3] [4] [5] [RNAS1_BOVIN] Endonuclease that catalyzes the cleavage of RNA on the 3' side of pyrimidine nucleotides. Acts on single stranded and double stranded RNA.[6]

About this Structure

2e33 is a 2 chain structure with sequence from Bos taurus and Lk3 transgenic mice. Full crystallographic information is available from OCA.

Reference

  • Mizushima T, Yoshida Y, Kumanomidou T, Hasegawa Y, Suzuki A, Yamane T, Tanaka K. Structural basis for the selection of glycosylated substrates by SCF(Fbs1) ubiquitin ligase. Proc Natl Acad Sci U S A. 2007 Apr 3;104(14):5777-81. Epub 2007 Mar 26. PMID:17389369
  1. ↑ Yoshida Y, Chiba T, Tokunaga F, Kawasaki H, Iwai K, Suzuki T, Ito Y, Matsuoka K, Yoshida M, Tanaka K, Tai T. E3 ubiquitin ligase that recognizes sugar chains. Nature. 2002 Jul 25;418(6896):438-42. PMID:12140560 doi:10.1038/nature00890
  2. ↑ Yoshida Y, Adachi E, Fukiya K, Iwai K, Tanaka K. Glycoprotein-specific ubiquitin ligases recognize N-glycans in unfolded substrates. EMBO Rep. 2005 Mar;6(3):239-44. PMID:15723043 doi:http://dx.doi.org/10.1038/sj.embor.7400351
  3. ↑ Yamaguchi Y, Hirao T, Sakata E, Kamiya Y, Kurimoto E, Yoshida Y, Suzuki T, Tanaka K, Kato K. Fbs1 protects the malfolded glycoproteins from the attack of peptide:N-glycanase. Biochem Biophys Res Commun. 2007 Oct 26;362(3):712-6. Epub 2007 Aug 20. PMID:17720138 doi:http://dx.doi.org/10.1016/j.bbrc.2007.08.056
  4. ↑ Yoshida Y, Murakami A, Iwai K, Tanaka K. A neural-specific F-box protein Fbs1 functions as a chaperone suppressing glycoprotein aggregation. J Biol Chem. 2007 Mar 9;282(10):7137-44. Epub 2007 Jan 10. PMID:17215248 doi:http://dx.doi.org/10.1074/jbc.M611168200
  5. ↑ Mizushima T, Hirao T, Yoshida Y, Lee SJ, Chiba T, Iwai K, Yamaguchi Y, Kato K, Tsukihara T, Tanaka K. Structural basis of sugar-recognizing ubiquitin ligase. Nat Struct Mol Biol. 2004 Apr;11(4):365-70. Epub 2004 Feb 29. PMID:14990996 doi:http://dx.doi.org/10.1038/nsmb732
  6. ↑ delCardayre SB, Ribo M, Yokel EM, Quirk DJ, Rutter WJ, Raines RT. Engineering ribonuclease A: production, purification and characterization of wild-type enzyme and mutants at Gln11. Protein Eng. 1995 Mar;8(3):261-73. PMID:7479688

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