This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

1b3u

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 11:18, 22 November 2017

CRYSTAL STRUCTURE OF CONSTANT REGULATORY DOMAIN OF HUMAN PP2A, PR65ALPHA

Structural highlights

1b3u is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[2AAA_HUMAN] The PR65 subunit of protein phosphatase 2A serves as a scaffolding molecule to coordinate the assembly of the catalytic subunit and a variable regulatory B subunit. Required for proper chromosome segregation and for centromeric localization of SGOL1 in mitosis.^[1]

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

The PR65/A subunit of protein phosphatase 2A serves as a scaffolding molecule to coordinate the assembly of the catalytic subunit and a variable regulatory B subunit, generating functionally diverse heterotrimers. Mutations of the beta isoform of PR65 are associated with lung and colon tumors. The crystal structure of the PR65/Aalpha subunit, at 2.3 A resolution, reveals the conformation of its 15 tandemly repeated HEAT sequences, degenerate motifs of approximately 39 amino acids present in a variety of proteins, including huntingtin and importin beta. Individual motifs are composed of a pair of antiparallel alpha helices that assemble in a mainly linear, repetitive fashion to form an elongated molecule characterized by a double layer of alpha helices. Left-handed rotations at three interrepeat interfaces generate a novel left-hand superhelical conformation. The protein interaction interface is formed from the intrarepeat turns that are aligned to form a continuous ridge.

The structure of the protein phosphatase 2A PR65/A subunit reveals the conformation of its 15 tandemly repeated HEAT motifs.,Groves MR, Hanlon N, Turowski P, Hemmings BA, Barford D Cell. 1999 Jan 8;96(1):99-110. PMID:9989501^[2]

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

References

↑ Tang Z, Shu H, Qi W, Mahmood NA, Mumby MC, Yu H. PP2A is required for centromeric localization of Sgo1 and proper chromosome segregation. Dev Cell. 2006 May;10(5):575-85. Epub 2006 Mar 30. PMID:16580887 doi:10.1016/j.devcel.2006.03.010
↑ Groves MR, Hanlon N, Turowski P, Hemmings BA, Barford D. The structure of the protein phosphatase 2A PR65/A subunit reveals the conformation of its 15 tandemly repeated HEAT motifs. Cell. 1999 Jan 8;96(1):99-110. PMID:9989501

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1b3u"

@@ Line 1: / Line 1: @@
 ==CRYSTAL STRUCTURE OF CONSTANT REGULATORY DOMAIN OF HUMAN PP2A, PR65ALPHA==
 <StructureSection load='1b3u' size='340' side='right' caption='[[1b3u]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1b3u]] 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=1B3U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1B3U FirstGlance]. <br>
-</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=1b3u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1b3u OCA], [http://pdbe.org/1b3u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1b3u RCSB], [http://www.ebi.ac.uk/pdbsum/1b3u PDBsum]</span></td></tr>
+</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=1b3u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1b3u OCA], [http://pdbe.org/1b3u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1b3u RCSB], [http://www.ebi.ac.uk/pdbsum/1b3u PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1b3u ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 26: / Line 27: @@
 </div>
 <div class="pdbe-citations 1b3u" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Protein phosphatase|Protein phosphatase]]
 == References ==
 <references/>

1b3u

From Proteopedia

Revision as of 11:18, 22 November 2017

CRYSTAL STRUCTURE OF CONSTANT REGULATORY DOMAIN OF HUMAN PP2A, PR65ALPHA

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox