Recombinant Escherichia coli DNA ligase(ligA)

Code CSB-EP322745ENV
Size US$2466 How to order?
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Purity Greater than 90% as determined by SDS-PAGE.
Target Names ligA
Uniprot No. P15042
Research Area Others
Alternative Names ligA; dnaL; lig; lop; pdeC; b2411; JW2403; DNA ligase; EC; Polydeoxyribonucleotide synthase [NAD(+)]
Species Escherichia coli (strain K12)
Source E.coli
Expression Region 1-671aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 77.6kDa
Protein Length Full Length
Tag Info N-terminal 6xHis-tagged
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

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Target Background

DNA ligase that catalyzes the formation of phosphodiester linkages between 5'-phosphoryl and 3'-hydroxyl groups in double-stranded DNA using NAD as a coenzyme and as the energy source for the reaction. It is essential for DNA replication and repair of damaged DNA.
Gene References into Functions
  1. Kinetic mechanism and fidelity of nick sealing by Escherichia coli LigA has been described. PMID: 26857547
  2. Here the authors show that replication without ligase kills after a short resistance period. PMID: 22582878
  3. temperature sensitive mutant characterized PMID: 15583169
  4. analysis of the nucleotidyltransferase domain of Escherichia coli NAD+-dependent DNA ligase (LigA) PMID: 15671015
  5. The deletion of the BRCT domain from LigA reduced in vitro ligation activity by 3-fold and also reduced DNA binding. PMID: 15848142
  6. 2.3 A crystal structure of LigA bound to an adenylylated nick, which captures LigA in a state poised for strand closure and reveals the basis for nick recognition PMID: 17466627
  7. structure-function analysis of the OB, HhH & BRCT domains of LigA; study found that the BRCT domain is required in its entirety for effective nick sealing and AMP-dependent supercoil relaxation PMID: 18515356

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Protein Families NAD-dependent DNA ligase family, LigA subfamily
Database Links

KEGG: ecj:JW2403

STRING: 316385.ECDH10B_2576

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