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* '''Description:''' developmental checkpoint protein, inhibits the autokinase activity of [[KinA]]
{{#bank: Sda}}


{| align="right" border="1" cellpadding="2"
|-
|style="background:#ABCDEF;" align="center"|'''Gene name'''
|''sda''
|-
|style="background:#ABCDEF;" align="center"| '''Synonyms''' || '' ''
|-
|style="background:#ABCDEF;" align="center"| '''Essential''' || no
|-
|style="background:#ABCDEF;" align="center"| '''Product''' || developmental checkpoint protein
|-
|style="background:#ABCDEF;" align="center"|'''Function''' || mediates a developmental checkpoint coupling<br/>initiation of sporulation (phosphorylation of [[Spo0A]])<br/>to the function of replication initiation proteins
|-
|style="background:#ABCDEF;" align="center"| '''MW, pI''' || 6 kDa, 5.605 
|-
|style="background:#ABCDEF;" align="center"| '''Gene length, protein length''' || 156 bp, 52 aa
|-
|style="background:#ABCDEF;" align="center"|'''Immediate neighbours''' || ''[[yloV]]'', ''[[sdaAA]]''
|-
|colspan="2" style="background:#FAF8CC;" align="center"|'''Get the DNA and protein [http://srs.ebi.ac.uk/srsbin/cgi-bin/wgetz?-e+&#91;EMBLCDS:CAE01463&#93;+-newId sequences] <br/> (Barbe ''et al.'', 2009)'''
|-
|colspan="2" | '''Genetic context''' <br/> [[Image:sda_context.gif]]
<div align="right"> <small>This image was kindly provided by [http://genolist.pasteur.fr/SubtiList/ SubtiList]</small></div>
|-
|}
__TOC__
<br/><br/><br/><br/>
=The gene=
=== Basic information ===
* '''Locus tag:''' BSU25690
===Phenotypes of a mutant ===
*sporulates at a higher frequency
*will sporulate in the presence of replication stress
=== Database entries ===
* '''DBTBS entry:''' [http://dbtbs.hgc.jp/COG/prom/sda.html]
* '''SubtiList entry:''' [http://genolist.pasteur.fr/SubtiList/genome.cgi?gene_detail+BG14183]
=== Additional information===
=The protein=
=== Basic information/ Evolution ===
* '''Catalyzed reaction/ biological activity:''' Sda is a checkpoint protein that is upregulated in response to replication stress {{PubMed|11207367}}. Sda inhibits the autokinase activity of [[KinA]] (and likely [[KinB]] as well). This in its turn results in reduced levels of [[Spo0A|Spo0A~P]]. Thus, replication stressed cells will not initiate sporulation<br/><br/> [[Sda]] is rapidly turned over by the [[ClpP|ClpP/X]] system because of some uncharged residues at its C-terminus {{PubMed|16796683}}.
* '''Protein family:'''
* '''Paralogous protein(s):'''
=== Extended information on the protein ===
* '''Kinetic information:'''
* '''Domains:'''
* '''Modification:'''
* '''Cofactor(s):'''
* '''Effectors of protein activity:'''
* '''Interactions:''' [[KinB]]-[[Sda]],  [[KinA]]-[[Sda]]
* '''Localization:'''
=== Database entries ===
* '''Structure:''' [http://www.rcsb.org/pdb/explore.do?structureId=3D36 3D36] (from Geobacillus stearothermophilus, complex with [[KinB]]),  [http://www.rcsb.org/pdb/explore.do?structureId=1PV0 1PV0]
* '''UniProt:''' [http://www.uniprot.org/uniprot/Q7WY62 Q7WY62]
* '''KEGG entry:''' [http://www.genome.jp/dbget-bin/www_bget?bsu:BSU25690]
* '''E.C. number:'''
=== Additional information===
=Expression and regulation=
* '''Operon:'''  ''[[sda]]''
* '''Sigma factor:'''  [[SigA]]
* '''Regulation:'''  [[DnaA]]
** repressed when no DNA damage is present ([[LexA]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/16267290 PubMed]
* '''Regulatory mechanism:''' Probably activated by [[DnaA]] under replication stress
** [[LexA]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/16267290 PubMed]
* '''Additional information:'''
=Biological materials =
* '''Mutant:'''
* '''Expression vector:'''
       
* '''lacZ fusion:'''
* '''GFP fusion:'''
* '''two-hybrid system:'''
* '''Antibody:'''
=Labs working on this gene/protein=
Bill Burkholder [http://burkholder.stanford.edu/ Homepage]
=Your additional remarks=
=References=
<pubmed>11207367, 16267290, 19465772, 15023339 16796683</pubmed>
[[Category:Protein-coding genes]]

Latest revision as of 10:20, 1 June 2015