Difference between revisions of "GapA"

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* '''Description:''' Glyceraldehyde 3-phosphate dehydrogenase, NAD-dependent, glycolytic enzyme <br/><br/>
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* '''Description:''' Glyceraldehyde 3-phosphate dehydrogenase, NAD-dependent, glycolytic enzyme &lt;br/>&lt;br/>
 
  
 
{| align="right" border="1" cellpadding="2"  
 
{| align="right" border="1" cellpadding="2"  
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|style="background:#ABCDEF;" align="center"|'''Function''' || catabolic enzyme in glycolysis
 
|style="background:#ABCDEF;" align="center"|'''Function''' || catabolic enzyme in glycolysis
 
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|colspan="2" style="background:#FAF8CC;" align="center"| '''Metabolic function and regulation of this protein in [[SubtiPathways|''Subti''Pathways]]: &lt;br/>[http://subtiwiki.uni-goettingen.de/pathways/carbon_flow.html Central C-metabolism]'''
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|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]'''
 
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|style="background:#ABCDEF;" align="center"| '''MW, pI''' || 35.7 kDa, 5.03
 
|style="background:#ABCDEF;" align="center"| '''MW, pI''' || 35.7 kDa, 5.03
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|style="background:#ABCDEF;" align="center"|'''Immediate neighbours''' || ''[[pgk]]'', ''[[cggR]]''
 
|style="background:#ABCDEF;" align="center"|'''Immediate neighbours''' || ''[[pgk]]'', ''[[cggR]]''
 
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|colspan="2" style="background:#FAF8CC;" align="center"|'''Get the DNA and protein [http://srs.ebi.ac.uk/srsbin/cgi-bin/wgetz?-e+&amp;#91;EMBLCDS:CAB15399&amp;#93;+-newId sequences] &lt;br/> (Barbe ''et al.'', 2009)'''
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|colspan="2" style="background:#FAF8CC;" align="center"|'''Get the DNA and protein [http://srs.ebi.ac.uk/srsbin/cgi-bin/wgetz?-e+&#91;EMBLCDS:CAB15399&#93;+-newId sequences] <br/> (Barbe ''et al.'', 2009)'''
 
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|colspan="2" | '''Genetic context''' &lt;br/> [[Image:gapA_context.gif]]
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|colspan="2" | '''Genetic context''' <br/> [[Image:gapA_context.gif]]
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  &lt;div align="right"> &lt;small>This image was kindly provided by [http://genolist.pasteur.fr/SubtiList/ SubtiList]&lt;/small>&lt;/div>
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  <div align="right"> <small>This image was kindly provided by [http://genolist.pasteur.fr/SubtiList/ SubtiList]</small></div>
 
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__TOC__
 
__TOC__
  
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<br/><br/><br/><br/><br/><br/>
  
 
 
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=== Basic information/ Evolution ===
 
=== Basic information/ Evolution ===
  
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* '''Catalyzed reaction/ biological activity:''' D-glyceraldehyde 3-phosphate + phosphate + NAD&lt;sup>+&lt;/sup> = 3-phospho-D-glyceroyl phosphate + NADH (according to Swiss-Prot)
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* '''Catalyzed reaction/ biological activity:''' D-glyceraldehyde 3-phosphate + phosphate + NAD<sup>+</sup> = 3-phospho-D-glyceroyl phosphate + NADH (according to Swiss-Prot)
 
** This reaction is part of the glycolysis.
 
** This reaction is part of the glycolysis.
  
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=References=
 
=References=
  
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&lt;pubmed> 12850135,19193632, 18673455 , 20444087 17726680,16479537,12622823,12359717,10799476,17505547,11489127,12123463,17218307,12634343,17142398,17114254,10559165    &lt;/pubmed>
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<pubmed> 12850135,19193632, 18673455 , 20444087 17726680,16479537,12622823,12359717,10799476,17505547,11489127,12123463,17218307,12634343,17142398,17114254,10559165    </pubmed>
  
 
[[Category:Protein-coding genes]]
 
[[Category:Protein-coding genes]]

Revision as of 04:49, 24 November 2010

  • Description: Glyceraldehyde 3-phosphate dehydrogenase, NAD-dependent, glycolytic enzyme

Gene name gapA
Synonyms
Essential Yes (PubMed)
Product glyceraldehyde 3-phosphate dehydrogenase
Function catabolic enzyme in glycolysis
Metabolic function and regulation of this protein in SubtiPathways:
Central C-metabolism
MW, pI 35.7 kDa, 5.03
Gene length, protein length 1005 bp, 335 amino acids
Immediate neighbours pgk, cggR
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
GapA context.gif
This image was kindly provided by SubtiList








The gene

Basic information

  • Locus tag: BSU33940

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry:[2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: D-glyceraldehyde 3-phosphate + phosphate + NAD+ = 3-phospho-D-glyceroyl phosphate + NADH (according to Swiss-Prot)
    • This reaction is part of the glycolysis.
  • Protein family: glyceraldehyde-3-phosphate dehydrogenase family (according to Swiss-Prot)
  • Paralogous protein(s): GapB

Extended information on the protein

  • Kinetic information: Michaelis-Menten PubMed
  • Domains:
  • Modification:
    • Phosphorylation on (Ser-148 OR Ser-151 OR Thr-153 OR Thr-154) PubMed1, PubMed2
    • Reversible thiol modifications after exposure to toxic quinones PubMed
  • Cofactor(s): NAD+ (do not accept NADP+) PubMed
  • Effectors of protein activity:
  • Localization: cytoplasm (according to Swiss-Prot), Cytoplasm (Homogeneous) PubMed PubMed, loosely membrane associated PubMed

Database entries

  • Structure:
    • 1GD1 (from Geobacillus stearothermophilus)
    • 1NQO (from Geobacillus stearothermophilus, mutant with cys 149 replaced by ser, complex with NAD+ und D-Glyceraldehyde-3-Phosphate)
  • KEGG entry: [3]

Additional information

GAP dehydrogenases from different sources (incl. Geobacillus stearothermophilus) were shown to cleave RNA (PubMed). Moreover, mutations in gapA from B. subtilis can suppress mutations in genes involved in DNA replication (PubMed).

Expression and regulation

  • Regulation:
    • expression activated by glucose (10 fold) (CggR) PubMed
  • Regulatory mechanism:
  • Additional information:
    • GapA is one of the most abundant proteins in the cell. In the presence of glucose, there are about 25,000 GapA molecules per cell (PubMed).
    • The primary mRNAs of the operon are highly unstable. The primary mRNA is subject to processing at the very end of the cggR open reading frame. This results in stable mature gapA and gapA-pgk-tpiA-pgm-eno mRNAs. PubMed The processing event requires the RNase Y PubMed.
    • The accumulation of the cggR-gapA mRNA is strongly dependent on the presence of the YkzW peptide, due to stabilization of the mRNA PubMed.

Biological materials

  • Mutant:
    • GP592 (gapA::cat), available in Stülke lab
    • GP597 (gapA::erm), available in Stülke lab
    • GP703 (gapA::cat gapB::spec), available in Stülke lab
    • GM1501 (under p(spac) control), available in Stephane Aymerich lab
  • Expression vector:
    • pGP1424 (expression in B. subtilis, in pBQ200) (available in Stülke lab)
    • pGP90 (N-terminal Strep-tag, for SPINE, purification from B. subtilis, in pGP380) (available in Stülke lab)
    • pGP704 (N-terminal His-tag, in pWH844) (available in Stülke lab)
  • lacZ fusion: pGP506 (in pAC7), pGP512 (in pAC6) (available in Stülke lab)
  • GFP fusion:
  • two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH), available in Stülke lab
  • Antibody: available in Stülke lab

Labs working on this gene/protein

Stephane Aymerich, Microbiology and Molecular Genetics, INRA Paris-Grignon, France

Jörg Stülke, University of Göttingen, Germany homepage

Your additional remarks

References

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