Q: We are interested in the following references: NBL1-11754, NB820-59468, NBL1-14127,NBL1-07345. Have these references got any tag in their sequence for their purification, so the weight (KDa) increases?

A: NBL1-11754, NBL1-14127 and NBL1-07345 are all overexpression lysates; in each case, the protein contains a C-terminal Myc/DDK epitope tag (only 3 kDa total). The NB820-59468 is not an overexpression lysate; it is a whole normal brain (fetal) tissue lysate.

HspA6 Overexpression Lysate

Novus Biologicals | Catalog # NBL1-11754

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Product Summary
Product Specifications
Scientific Data
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Species

Human

Applications

Western Blot

Product Summary for HspA6 Overexpression Lysate

HspA6 Transient Overexpression Lysate

Expression Host: HEK293T

Plasmid: RC207795

Accession#: NM_002155

Protein Tag: C-MYC/DDK

You will receive 1 vial of lysate (100ug), 1 vial of empty vector negative control (100ug), and 1 vial of 2xSDS sample buffer (250ul). Each vial of cell lysate contains 100ug of total protein (at 1 mg/ml). The 2xSDS Sample Buffer consists of 4% SDS, 125mM Tris-HCl pH6.8, 10% Glycerol, 0.002% Bromophenol blue, 100mM DTT.

Product Specifications

Application Notes

This product is intended for use as a positive control in Western Blot. Overexpression of the target protein was confirmed using an antibody to DDK (FLAG) epitope tag (NBP1-71705) present on the protein construct.

Each vial of cell lysate contains 100ug of total protein which should be sufficient for 20-50 reactions. Depending on over-expression level, antibody affinity and detection system, some lysates can go as low as 0.1 ug per load. We recommend starting with 5ug of cell lysate. Add an equal amount of cell lysate and 2X SDS Sample buffer and boil the SDS samples for 10 minutes before loading.

Theoretical MW

70.8 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Type

Overexpression

Scientific Data Images for HspA6 Overexpression Lysate

Western Blot: HspA6 Overexpression Lysate [NBL1-11754]

Western Blot: HspA6 Overexpression Lysate (Adult Normal) [NBL1-11754] Left-Empty vector transfected control cell lysate (HEK293 cell lysate); Right -Over-expression Lysate for HspA6.

Formulation, Preparation, and Storage

Formulation

RIPA buffer

Concentration

The exact concentration of the protein of interest cannot be determined for overexpression lysates. Please contact technical support for more information.

Shipping

The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.

Storage

Store at -80C. Avoid freeze-thaw cycles.

Background: HSPA6/HSP70B

HSP70B is a unique member of the human Hsp70 chaperone involved in cellular processes such as protein trafficking, folding, and prevention of aggregation. This protein is strictly stress-inducible, having little or no basal expression levels in most cells. HSP70B and Hsp72 are closely related and play cooperative roles in cell survival of proteotoxic stress. Recombinant human HSP70B, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography.

Long Name

Heat Shock Protein A6

Alternate Names

HSP70B

Gene Symbol

HSPA6

Additional HSPA6/HSP70B Products

Product Documents for HspA6 Overexpression Lysate

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Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

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Product Specific Notices for HspA6 Overexpression Lysate

HEK293T cells in 10-cm dishes were transiently transfected with a non-lipid polymer transfection reagent specially designed and manufactured for large volume DNA transfection. Transfected cells were cultured for 48hrs before collection. The cells were lysed in modified RIPA buffer (25mM Tris-HCl pH7.6, 150mM NaCl, 1% NP-40, 1mM EDTA, 1xProteinase inhibitor cocktail mix, 1mM PMSF and 1mM Na3VO4, and then centrifuged to clarify the lysate. Protein concentration was measured by BCA protein assay kit.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Lysates are guaranteed for 6 months from date of receipt.

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