Purity
Greater than 90% as determined by SDS-PAGE.
Research Area
Signal Transduction
Alternative Names
dnaK; UTI89_C0016Chaperone protein DnaK; HSP70; Heat shock 70 kDa protein; Heat shock protein 70
Species
Escherichia coli (strain UTI89 / UPEC)
Expression Region
1-638aa
Target Protein Sequence
MGKIIGIDLGTTNSCVAIMDGTTPRVLENAEGDRTTPSIIAYTQDGETLVGQPAKRQAVTNPQNTLFAIKRLIGRRFQDEEVQRDVSIMPFKIIAADNGDAWVEVKGQKMAPPQISAEVLKKMKKTAEDYLGEPVTEAVITVPAYFNDAQRQATKDAGRIAGLEVKRIINEPTAAALAYGLDKGTGNRTIAVYDLGGGTFDISIIEIDEVDGEKTFEVLATNGDTHLGGEDFDSRLINYLVEEFKKDQGIDLRNDPLAMQRLKEAAEKAKIELSSAQQTDVNLPYITADATGPKHMNIKVTRAKLESLVEDLVNRSIEPLKVALQDAGLSVSDIDDVILVGGQTRMPMVQKKVAEFFGKEPRKDVNPDEAVAIGAAVQGGVLTGDVKDVLLLDVTPLSLGIETMGGVMTTLIAKNTTIPTKHSQVFSTAEDNQSAVTIHVLQGERKRAADNKSLGQFNLDGINPAPRGMPQIEVTFDIDADGILHVSAKDKNSGKEQKITIKASSGLNEDEIQKMVRDAEANAEADRKFEELVQTRNQGDHLLHSTRKQVEEAGDKLPADDKTAIESALTALETALKGEDKAAIEAKMQELAQVSQKLMEIAQQQHAQQQTAGADASANNAKDDDVVDAEFEEVKDKK
Note: The complete sequence including tag
sequence, target protein sequence and linker sequence could be provided upon request.
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.
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.
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
Amino acids 1-638 constitute the expression domain of recombinant Escherichia coli (strain UTI89 / UPEC) dnaK. The expected molecular weight for the dnaK protein is calculated to be 73.1 kDa. Expression of this dnaK protein is conducted in e.coli. Fusion of the N-terminal 6xHis tag into the dnaK encoding gene fragment was conducted, allowing for easier detection and purification of the dnaK protein in subsequent stages.
Escherichia coli chaperone protein DnaK is a key molecular chaperone in bacterial cells, essential for protein folding and quality control. It assists in protein refolding during stress and prevents protein aggregation. In microbiology, DnaK is crucial for bacterial survival under various conditions. In biotechnology, it facilitates recombinant protein expression and production. DnaK's involvement in bacterial virulence makes it a target in infectious disease research. In cell biology, DnaK is a model chaperone for understanding cellular protein folding. Investigating DnaK provides insights into bacterial stress responses, protein homeostasis, and potential applications in biopharmaceuticals, antibiotics, and understanding bacterial pathogenesis.
