Name :
Recombinant Human Granzyme B Protein (His Tag), HPLC-verified
Biological Activity :
Background :
Granzyme B, also known as GZMB, is the most prominent member of the granzyme family of cell death-inducing serine proteases expressed in the granules of cytotoxic T lymphocytes (CTLs) and NK cells. Granzyme B enters the target cells depending on another membrane-binding granule protein, perforin, results in the activation of effector caspases and mitochondrial depolarization through caspase-dependent and -independent pathways, and consequently induces rapid cell apoptosis. Over 3 substrates of GZMB have been identified including the key substrate caspase-3, ICAD, and Bid. GZMB is suggested to protect the host by lysing cells bearing on their surface ‘nonself’ antigens such as bacterial and viral infected-cells and tumor cells and accordingly plays an essential role in immunosurveillance.
Biological Activity :
Measured by its ability to cleave a peptide substrate, tButyloxycaronylAlaAlaAspThioBenzylester (BocAADSBzl),in the presence of 5,5’Dithiobis (2nitrobenzoic acid) (DTNB). (The enzyme needs to be activated by Recombinant Mouse Active Cathepsin C).
Expression Host :
Human
Source :
HEK293 Cells
Tag :
Protein Accession No. :
NP_004122.1
NCBI Gene ID :
Synonyms :
Synonyms :
granzyme B (granzyme 2, cytotoxic T-lymphocyte-associated serine esterase 1)
Amino Acid Sequence :
Molecular Weight :
The recombinant human Granzyme B consists of 240 amino acids and has a calculated molecular mass of 27.2 kDa. As a result of glycosylation, the apparent molecular mass of rhGranzyme B is approximately 35-40 kDa in SDS-PAGE under reducing conditions.
Purity :
≥ 97 % as determined by SDS-PAGE ≥ 95 % as determined by SEC-HPLC.
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Endotoxin Level :
< 1.0 EU per μg of the protein as determined by the LAL method
Protein Construction :
A DNA sequence encoding the proform of human Granzyme B (NP_004122.1) (Met 1-Tyr 247) was expressed with a C-terminal polyhistidine tag.
Buffer Solution :
Lyophilized from sterile PBS, pH 7.4.Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
CCPI Protein, Human; CGL-1 Protein, Human; CGL1 Protein, Human; CSP-B Protein, Human; CSPB Protein, Human; CTLA1 Protein, Human; CTSGL1 Protein, Human; HLP Protein, Human; SECT Protein, Human Granzyme B 背景信息 Granzyme B, also known as GZMB, is the most prominent member of the granzyme family of cell death-inducing serine proteases expressed in the granules of cytotoxic T lymphocytes (CTLs) and NK cells. Granzyme B enters the target cells depending on another membrane-binding granule protein, perforin, results in the activation of effector caspases and mitochondrial depolarization through caspase-dependent and -independent pathways, and consequently induces rapid cell apoptosis. Over 3 substrates of GZMB have been identified including the key substrate caspase-3, ICAD, and Bid. GZMB is suggested to protect the host by lysing cells bearing on their surface ‘nonself’ antigens such as bacterial and viral infected-cells and tumor cells and accordingly plays an essential role in immunosurveillance.
References & Citations :
Schmid J., et al.,(1987), Induction of mRNA for a serine protease and a beta-thromboglobulin-like protein in mitogen-stimulated human leukocytes. J. Immunol. 139:250-256.Caputo A., et al., (1988), Structure and differential mechanisms of regulation of expression of a serine esterase gene in activated human T lymphocytes.J. Biol. Chem. 263:6363-6369.Trapani J.A., et al.,(1988), Molecular cloning of an inducible serine esterase gene from human cytotoxic lymphocytes.Proc. Natl. Acad. Sci. U.S.A. 85:6924-6928.
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