Recombinant Escherichia coli Holliday junction ATP-dependent DNA helicase RuvA (ruvA)

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Code CSB-EP359062ENV
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Size US$388
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  • (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
ruvA
Uniprot No.
Research Area
Others
Alternative Names
ruvA; b1861; JW1850; Holliday junction ATP-dependent DNA helicase RuvA; EC 3.6.4.12
Species
Escherichia coli (strain K12)
Source
E.coli
Expression Region
1-203aa
Target Protein Sequence
MIGRLRGIIIEKQPPLVLIEVGGVGYEVHMPMTCFYELPEAGQEAIVFTHFVVREDAQLLYGFNNKQERTLFKELIKTNGVGPKLALAILSGMSAQQFVNAVEREEVGALVKLPGIGKKTAERLIVEMKDRFKGLHGDLFTPAADLVLTSPASPATDDAEQEAVAALVALGYKPQEASRMVSKIARPDASSETLIREALRAAL
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
38.1kDa
Protein Length
Full Length
Tag Info
N-terminal 6xHis-SUMO-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.
Troubleshooting and 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
3-7 business days
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.
Description

The Recombinant Escherichia coli (strain K12) ruvA protein is a premium product specifically designed for researchers focusing on DNA repair and replication. This full-length Holliday junction branch migration complex subunit RuvA protein is derived from the Escherichia coli (strain K12) species, featuring an expression region of 1-203aa.

Produced in E. coli, the protein is engineered with an N-terminal 6xHis-SUMO tag for convenient detection and purification. With a purity greater than 90% as determined by SDS-PAGE, our Recombinant Escherichia coli (strain K12) ruvA protein is supplied as a lyophilized powder, ensuring a consistent and dependable resource for your research needs.

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Target Background

Function
The RuvA-RuvB complex in the presence of ATP renatures cruciform structure in supercoiled DNA with palindromic sequence, indicating that it may promote strand exchange reactions in homologous recombination. RuvAB is a helicase that mediates the Holliday junction migration by localized denaturation and reannealing. RuvA stimulates, in the presence of DNA, the weak ATPase activity of RuvB. Binds both single- and double-stranded DNA (dsDNA). Binds preferentially to supercoiled rather than to relaxed dsDNA.
Gene References into Functions
  1. Regression of replication forks stalled by leading-strand template damage: both RecG and RuvAB catalyze regression, but RuvC cleaves the holliday junctions formed by RecG preferentially. PMID: 25138216
  2. These results suggest that RecQ acts upstream of RuvABC, RecG and XerC proteins, a finding that is compatible with its primary role in initiation of the RecF recombination pathway. PMID: 24036154
  3. RNA polymerase mutations reduce the synergism between priB and ruvABC. PMID: 22957744
  4. DNA fragmentation absolutely depends on both RecA-catalyzed homologous strand exchange and RuvABC-catalyzed Holliday junction resolution PMID: 22194615
  5. Role in converting the initial single-strand DNA-protein cleavage complex into a double-strand break prior to repair by homologous recombination. PMID: 20601468
  6. Study hypothesized that RuvAB catalyzes replication fork reversal in order to produce SOS(Con) expression. PMID: 20304994
  7. RuvA octamerization is essential for the full biological activity of RuvABC. PMID: 15556943
  8. RuvA is less mobile at a heterologous junction compared to a homologous junction, as two opposing DnaB pumps are required to mobilize RuvA over heterologous DNA. PMID: 16324713
  9. RuvABC is required to resolve junctions that arise during the repair of a subset of nonarresting lesions after replication has passed through the template PMID: 16895921
  10. The authors present here the isolation and characterization of ruvA and ruvB single mutants that are impaired for replication fork reversal at forks arrested by the inactivation of polymerase III, while they remain capable of homologous recombination. PMID: 18942176

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Subcellular Location
Cytoplasm. Note=In 15% of cell localizes to discrete nucleoid foci (probable DNA damage sites) upon treatment with mitomycin C (MMC) for 2 hours.
Protein Families
RuvA family
Database Links
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