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HSP70/DnaK Protein, E. coli (P.pastoris, His)

Cat. No.: HY-P71824
COA Handling Instructions

HSP70/DnaK protein, a molecular chaperone, responds primarily to stress, notably heat shock. It plays a crucial role in aiding the proper folding of proteins during cellular stress, preventing misfolding or aggregation. The chaperone activity is vital for cellular homeostasis and survival under adverse conditions, where maintaining correct protein conformation becomes challenging. HSP70/DnaK's ability to recognize and assist in refolding misfolded or denatured proteins is essential for cellular resilience, preventing proteotoxicity induced by stressors, especially elevated temperatures. HSP70/DnaK Protein, E. coli (P.pastoris, His) is the recombinant E. coli-derived HSP70/DnaK protein, expressed by P. pastoris, with N-6*His labeled tag. The total length of HSP70/DnaK Protein, E. coli (P.pastoris, His) is 638 a.a., with molecular weight of ~71.1 kDa.

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Description

HSP70/DnaK protein, a molecular chaperone, responds primarily to stress, notably heat shock. It plays a crucial role in aiding the proper folding of proteins during cellular stress, preventing misfolding or aggregation. The chaperone activity is vital for cellular homeostasis and survival under adverse conditions, where maintaining correct protein conformation becomes challenging. HSP70/DnaK's ability to recognize and assist in refolding misfolded or denatured proteins is essential for cellular resilience, preventing proteotoxicity induced by stressors, especially elevated temperatures. HSP70/DnaK Protein, E. coli (P.pastoris, His) is the recombinant E. coli-derived HSP70/DnaK protein, expressed by P. pastoris, with N-6*His labeled tag. The total length of HSP70/DnaK Protein, E. coli (P.pastoris, His) is 638 a.a., with molecular weight of ~71.1 kDa.

Background

HSP70/DnaK protein functions as a molecular chaperone, primarily responding to stress conditions, such as heat shock. In times of cellular stress, this protein plays a crucial role in assisting the proper folding of other proteins, preventing misfolding or aggregation. The chaperone activity of HSP70/DnaK is especially vital for cellular homeostasis and survival under adverse environmental conditions, where maintaining the correct conformation of proteins becomes challenging. The protein's ability to recognize and assist in the refolding of misfolded or denatured proteins is essential for cellular resilience and the prevention of proteotoxicity induced by various stressors, particularly elevated temperatures.

Species

E.coli

Source

P. pastoris

Tag

N-6*His

Accession

Q1RGI8 (M1-K638)

Gene ID

58463508  [NCBI]

Molecular Construction
N-term
6*His
HSP70 (M1-K638)
Accession # Q1RGI8
C-term
Synonyms
dnaK; HSP70; Heat shock 70kDa protein; Heat shock protein 70
AA Sequence

MGKIIGIDLGTTNSCVAIMDGTTPRVLENAEGDRTTPSIIAYTQDGETLVGQPAKRQAVTNPQNTLFAIKRLIGRRFQDEEVQRDVSIMPFKIIAADNGDAWVEVKGQKMAPPQISAEVLKKMKKTAEDYLGEPVTEAVITVPAYFNDAQRQATKDAGRIAGLEVKRIINEPTAAALAYGLDKGTGNRTIAVYDLGGGTFDISIIEIDEVDGEKTFEVLATNGDTHLGGEDFDSRLINYLVEEFKKDQGIDLRNDPLAMQRLKEAAEKAKIELSSAQQTDVNLPYITADATGPKHMNIKVTRAKLESLVEDLVNRSIEPLKVALQDAGLSVSDIDDVILVGGQTRMPMVQKKVAEFFGKEPRKDVNPDEAVAIGAAVQGGVLTGDVKDVLLLDVTPLSLGIETMGGVMTTLIAKNTTIPTKHSQVFSTAEDNQSAVTIHVLQGERKRAADNKSLGQFNLDGINPAPRGMPQIEVTFDIDADGILHVSAKDKNSGKEQKITIKASSGLNEDEIQKMVRDAEANAEADRKFEELVQTRNQGDHLLHSTRKQVEEAGDKLPADDKTAIESALTALETALKGEDKAAIEAKMQELAQVSQKLMEIAQQQHAQQQTAGADASANNAKDDDVVDAEFEEVKDKK

Molecular Weight

Approximately 71.1 kDa

Purity

Greater than 90% as determined by reducing SDS-PAGE.

Appearance

Lyophilized powder.

Formulation

Lyophilized after extensive dialysis against solution in 20 mM Tris-HC1, 0.5 M NaCl, 6% Trehalose, pH 8.0.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

HSP70/DnaK Protein, E. coli (P.pastoris, His) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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HSP70/DnaK Protein, E. coli (P.pastoris, His)
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