1bk5

From Proteopedia

(Difference between revisions)

Revision as of 07:00, 24 February 2021

KARYOPHERIN ALPHA FROM SACCHAROMYCES CEREVISIAE

Structural highlights

1bk5 is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[IMA1_YEAST] Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Promotes docking of import substrates to the nuclear envelope. Seems to act as a cytosolic receptor for both simple and bipartite NLS motifs (By similarity).^[1] ^[2] ^[3]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Selective nuclear import is mediated by nuclear localization signals (NLSs) and cognate transport factors known as karyopherins or importins. Karyopherin alpha recognizes "classical" monopartite and bipartite NLSs. We report the crystal structure of a 50 kDa fragment of the 60 kDa yeast karyopherin alpha, in the absence and presence of a monopartite NLS peptide at 2.2 A and 2.8 A resolution, respectively. The structure shows a tandem array of ten armadillo repeats, organized in a right-handed superhelix of helices. Binding of the NLS peptide occurs at two sites within a helical surface groove that is lined by conserved residues. The structure reveals the determinants of NLS specificity and suggests a model for the recognition of bipartite NLSs.

Crystallographic analysis of the recognition of a nuclear localization signal by the nuclear import factor karyopherin alpha.,Conti E, Uy M, Leighton L, Blobel G, Kuriyan J Cell. 1998 Jul 24;94(2):193-204. PMID:9695948^[4]

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

References

↑ Kussel P, Frasch M. Yeast Srp1, a nuclear protein related to Drosophila and mouse pendulin, is required for normal migration, division, and integrity of nuclei during mitosis. Mol Gen Genet. 1995 Aug 21;248(3):351-63. PMID:7565597
↑ Tabb MM, Tongaonkar P, Vu L, Nomura M. Evidence for separable functions of Srp1p, the yeast homolog of importin alpha (Karyopherin alpha): role for Srp1p and Sts1p in protein degradation. Mol Cell Biol. 2000 Aug;20(16):6062-73. PMID:10913188
↑ Chen L, Romero L, Chuang SM, Tournier V, Joshi KK, Lee JA, Kovvali G, Madura K. Sts1 plays a key role in targeting proteasomes to the nucleus. J Biol Chem. 2011 Jan 28;286(4):3104-18. doi: 10.1074/jbc.M110.135863. Epub 2010 , Nov 12. PMID:21075847 doi:10.1074/jbc.M110.135863
↑ Conti E, Uy M, Leighton L, Blobel G, Kuriyan J. Crystallographic analysis of the recognition of a nuclear localization signal by the nuclear import factor karyopherin alpha. Cell. 1998 Jul 24;94(2):193-204. PMID:9695948

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1bk5"

@@ Line 3: / Line 3: @@
 <StructureSection load='1bk5' size='340' side='right'caption='[[1bk5]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1bk5]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BK5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1BK5 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1bk5]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BK5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BK5 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1bk5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bk5 OCA], [http://pdbe.org/1bk5 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1bk5 RCSB], [http://www.ebi.ac.uk/pdbsum/1bk5 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1bk5 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=1bk5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bk5 OCA], [https://pdbe.org/1bk5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bk5 RCSB], [https://www.ebi.ac.uk/pdbsum/1bk5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bk5 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/IMA1_YEAST IMA1_YEAST]] Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Promotes docking of import substrates to the nuclear envelope. Seems to act as a cytosolic receptor for both simple and bipartite NLS motifs (By similarity).<ref>PMID:7565597</ref> <ref>PMID:10913188</ref> <ref>PMID:21075847</ref>
+[[https://www.uniprot.org/uniprot/IMA1_YEAST IMA1_YEAST]] Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Promotes docking of import substrates to the nuclear envelope. Seems to act as a cytosolic receptor for both simple and bipartite NLS motifs (By similarity).<ref>PMID:7565597</ref> <ref>PMID:10913188</ref> <ref>PMID:21075847</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 30: / Line 30: @@
 ==See Also==
-*[[Biological Unit|Biological Unit]]
+*[[Importin 3D structures|Importin 3D structures]]
-*[[Importin|Importin]]
 == References ==
 <references/>

1bk5

From Proteopedia

Revision as of 07:00, 24 February 2021

KARYOPHERIN ALPHA FROM SACCHAROMYCES CEREVISIAE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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