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* '''Description:''' pyruvate kinase, glycolytic enzyme <br/><br/>
{{#bank: Pyk}}


{| align="right" border="1" cellpadding="2"
|-
|style="background:#ABCDEF;" align="center"|'''Gene name'''
|''pyk''
|-
|style="background:#ABCDEF;" align="center"| '''Synonyms''' || ''pykA''
|-
|style="background:#ABCDEF;" align="center"| '''Essential''' || no
|-
|style="background:#ABCDEF;" align="center"| '''Product''' || pyruvate kinase
|-
|style="background:#ABCDEF;" align="center"|'''Function''' || catabolic enzyme in glycolysis
|-
|colspan="2" style="background:#FAF8CC;" align="center"| '''Metabolic function and regulation of this protein in [[SubtiPathways|''Subti''Pathways]]: <br/>[http://subtiwiki.uni-goettingen.de/pathways/carbon_flow.html Central C-metabolism]'''
|-
|style="background:#ABCDEF;" align="center"| '''MW, pI''' || 61,9 kDa, 4.88
|-
|style="background:#ABCDEF;" align="center"| '''Gene length, protein length''' || 1755 bp, 585 amino acids
|-
|style="background:#ABCDEF;" align="center"|'''Immediate neighbours''' || ''[[pfkA]]'', ''[[ytzA]]''
|-
|colspan="2" style="background:#FAF8CC;" align="center"|'''Get the DNA and protein [http://srs.ebi.ac.uk/srsbin/cgi-bin/wgetz?-e+&#91;EMBLCDS:CAB14878&#93;+-newId sequences] <br/> (Barbe ''et al.'', 2009)'''
|-
|colspan="2" | '''Genetic context''' <br/> [[Image:pyk_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/><br/><br/>
=The gene=
=== Basic information ===
* '''Locus tag:''' BSU29180
===Phenotypes of a mutant ===
Unable to grow with non-PTS carbohydrates (such as glucitol or  glycerol) as single carbon source.
=== Database entries ===
* '''DBTBS entry:''' [http://dbtbs.hgc.jp/COG/prom/pfkA-pyk-ytzA.html]
* '''SubtiList entry:''' [http://genolist.pasteur.fr/SubtiList/genome.cgi?gene_detail+BG12661]
=== Additional information===
=The protein=
=== Basic information/ Evolution ===
* '''Catalyzed reaction/ biological activity:''' ADP + phosphoenolpyruvate --> ATP + pyruvate
** The reaction is irreversible under physiological conditions
* '''Protein family:''' PEP-utilizing enzyme family (according to Swiss-Prot) pyruvate kinase family, (C-terminal section: PEP-utilizing enzyme family)
* '''Paralogous protein(s):'''
=== Extended information on the protein ===
* '''Kinetic information:''' Allosteric Regulation [http://www.ncbi.nlm.nih.gov/pubmed/3711058 PubMed]
* '''Domains:'''
* '''Modification:''' phosphorylation on Ser36 [http://www.ncbi.nlm.nih.gov/pubmed/17218307 PubMed], [http://www.ncbi.nlm.nih.gov/pubmed/16493705 PubMed], phosphorylation on Ser536 or Ser546 [http://www.ncbi.nlm.nih.gov/pubmed/17726680 PubMed]
* '''Cofactor(s):''' Mg2+, K+
* '''Effectors of protein activity:'''
** Activated by PEP (Hill Coefficient 1,8) [http://www.ncbi.nlm.nih.gov/sites/entrez/4623707 PubMed] [http://www.ncbi.nlm.nih.gov/pubmed/3711058 PubMed]
** Allosterically activated by AMP [http://www.ncbi.nlm.nih.gov/pubmed/3711058 PubMed]
** Activation by r5p and ADP [http://www.ncbi.nlm.nih.gov/pubmed/3711058 PubMed]
** Inhibition by ADP and f16bp in high concentrations; and ATP [http://www.ncbi.nlm.nih.gov/pubmed/3711058 PubMed]
* '''Interactions:'''
* '''Localization:''' cytoplasm [http://www.ncbi.nlm.nih.gov/sites/entrez/16479537 PubMed]
=== Database entries ===
* '''Structure:''' [http://www.rcsb.org/pdb/explore.do?structureId=2E28 2E28] (Geobacillus stearothermophilus)
* '''Swiss prot entry:''' [http://www.uniprot.org/uniprot/P80885]
* '''KEGG entry:''' [http://www.genome.jp/dbget-bin/www_bget?bsu:BSU29180]
* '''E.C. number:''' [http://www.expasy.org/enzyme/2.7.1.40 2.7.1.40]
=== Additional information===
The enzyme is a tetramer with four active sites [http://www.ncbi.nlm.nih.gov/pubmed/3711058 PubMed]
=Expression and regulation=
* '''Operon:''' ''[[pfkA]] [[pyk]]'' [http://www.ncbi.nlm.nih.gov/sites/entrez/11489127 PubMed]
* '''Sigma factor:'''
* '''Regulation:''' twofold induced by glucose [http://www.ncbi.nlm.nih.gov/sites/entrez/11489127 PubMed]
* '''Regulatory mechanism:'''
* '''Additional information:'''
=Biological materials =
* '''Mutant:''' GP590 (cat), available in [[Stülke]] lab
* '''Expression vector:'''
Expression in ''E. coli'', N-terminal His-tag: pGP1100 (in [[pWH844]]), available in [[Stülke]] lab
Expression in ''B. subtilis'', native protein: pGP1411 (in [[pBQ200]]), available in [[Stülke]] lab
Expression in ''B. subtilis'', N-terminal Strep-tag: pGP1409 (in [[pGP380]]), available in [[Stülke]] lab
Expression in ''B. subtilis'', C-terminal Strep-tag: pGP1410 (in [[pGP382]]), available in [[Stülke]] lab
* '''lacZ fusion:''' see ''[[pfkA]]''
* '''GFP fusion:'''
* '''two-hybrid system:''' ''B. pertussis'' adenylate cyclase-based bacterial two hybrid system ([[BACTH]]), available in [[Stülke]] lab
* '''Antibody:'''
=Labs working on this gene/protein=
[[Stülke|Jörg Stülke]], University of Göttingen, Germany [http://wwwuser.gwdg.de/~genmibio/stuelke.html Homepage]
=Your additional remarks=
=References=
<pubmed>17726680 16493705 11489127 17505547 10966427 17218307 3711058 4623707 </pubmed>

Latest revision as of 17:13, 16 May 2014