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.
4i93
From Proteopedia
(Difference between revisions)
| (3 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | {{STRUCTURE_4i93| PDB=4i93 | SCENE= }} | ||
| - | ===Structure of the BSK8 kinase domain (SeMet labeled)=== | ||
| - | {{ABSTRACT_PUBMED_23911552}} | ||
| - | == | + | ==Structure of the BSK8 kinase domain (SeMet labeled)== |
| - | [[4i93]] is a 2 chain structure with sequence from [ | + | <StructureSection load='4i93' size='340' side='right'caption='[[4i93]], [[Resolution|resolution]] 1.50Å' scene=''> |
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4i93]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4I93 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4I93 FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></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=4i93 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4i93 OCA], [https://pdbe.org/4i93 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4i93 RCSB], [https://www.ebi.ac.uk/pdbsum/4i93 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4i93 ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/BSK8_ARATH BSK8_ARATH] Probable serine/threonine kinase that acts as positive regulator of brassinosteroid (BR) signaling downstream of the receptor kinase BRI1. Functions redundantly with BSK3, BSK4, BSK6 and BSK7 (PubMed:23496207). Involved in the regulation of sucrose-phosphate synthase 1 (SPS1) in the context of sucrose resuply after starvation. Activates BSL2, a phosphatase that may dephosphorylate SPS1, leading to the activation of SPS1 (PubMed:24924143).<ref>PMID:23496207</ref> <ref>PMID:24924143</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Brassinosteroid signaling kinases (BSKs) are plant-specific receptor-like cytoplasmic protein kinases involved in the brassinosteroid signaling pathway. Unlike common protein kinases, they possess a naturally occurring alanine residue at the "gatekeeper" position, as well as other sequence variations. How BSKs activate downstream proteins such as BSU1, as well as the structural consequences of their unusual sequential features, was unclear. We crystallized the catalytic domain of BSK8 and solved its structure by multiple-wavelength anomalous dispersion phasing methods to a resolution of 1.5A. In addition, a co-crystal structure of BSK8 with 5-adenylyl imidodiphosphate (AMP-PNP) revealed unusual conformational arrangements of the nucleotide phosphate groups and catalytic key motifs, typically not observed for active protein kinases. Sequential analysis and comparisons with known pseudokinase structures suggest that BSKs represent constitutively inactive protein kinases that regulate brassinosteroid signal transfer through an allosteric mechanism. | ||
| - | + | Structural Characterization of the RLCK Family Member BSK8: A Pseudokinase with an Unprecedented Architecture.,Grutter C, Sreeramulu S, Sessa G, Rauh D J Mol Biol. 2013 Aug 2. pii: S0022-2836(13)00482-8. doi:, 10.1016/j.jmb.2013.07.034. PMID:23911552<ref>PMID:23911552</ref> | |
| - | <ref | + | |
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 4i93" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Arabidopsis thaliana]] | [[Category: Arabidopsis thaliana]] | ||
| - | [[Category: | + | [[Category: Large Structures]] |
| - | [[Category: Gruetter | + | [[Category: Gruetter C]] |
| - | [[Category: Rauh | + | [[Category: Rauh D]] |
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
| - | + | ||
Current revision
Structure of the BSK8 kinase domain (SeMet labeled)
| |||||||||||
