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Escherichia coli acnB Protein

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E. coli acnB Protein Product Information
Synonym:yacI, yacJ
Protein Construction:A DNA sequence encoding the E.Coli (strain K12) acnB (P36683) (Met 1-Val 865) was expressed and purified.
Species:E. coli
Expressed Host:E. coli
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
E. coli acnB Protein QC Testing
Purity:> 97 % as determined by SDS-PAGE
Endotoxin:Please contact us for more information.
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Met 1
Molecule Mass:The recombinant E.Coli acnB consisting of 865 amino acids and has a calculated molecular mass of 93.5 kDa. It migrates as an approximately 95 kDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile 40mM Tris, 1mM DTT, pH 8.2
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
E. coli acnB Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
E. coli acnB Protein SDS-PAGE
Escherichia coli acnB Protein SDS-PAGE
Other acnB Recombinant Protein Products
acnB Background

Escherichia coli contains two major aconitases (Acns), AcnA and AcnB. They are distantly related monomeric Fe-S proteins that contain different arrangements of four structural domains. acnA is specifically subject to SoxRS-mediated activation, whereas acnB encodes the major aconitase that is synthesized earlier in the growth cycle than AcnA. It is concluded that AcnB is the major citric acid cycle enzyme. Aconitate hydratase 2 (acnB) catalyzes the isomerization of citrate to isocitrate via cis-aconitate as well as the dehydration of 2-methylisocitrate to cis-2-methylaconitate, thus it functions as the major citric-acid-cycle enzyme during exponential growth. Escherichia coli acnB serves as either an enzymic catalyst or a mRNA-binding post-transcriptional regulator, depending on the status of its iron sulfur cluster. AcnB represents a large, distinct group of Gram-negative bacterial aconitases that have an altered domain organization relative to mitochondrial aconitase and other aconitases.

E. coli acnB References
  • Bradbury AJ. et al., 1996, 142 (Pt 2): 389-400.
  • Cunningham L. et al., 1997, Microbiology. 143 (Pt 12): 3795-805.
  • Jordan PA. et al., 1999, Biochem J. 344 Pt 3: 739-46.
  • Williams CH. et al., 2002, Nat Struct Biol. 9(6): 447-52.
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    Catalog: 13102-ENAE-20
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