Recombinant Human Cystatin-B (CSTB)

Recombinant Human Cystatin-B (CSTB) — This is an intracellular thiol proteinase inhibitor. Purity >85%.

SKU: BCRECP-000443 Category:

Product Specifications

Product SkuBCRECP-000443
Product DescriptionRecombinant Human Cystatin-B (CSTB) Protein is expressed from E.coli with N-terminal 6xHis-SUMO-tagged. It contains 1-98aa. [Accession | P04080].
Uniprot No.P04080
Gene NamesCSTB
PurityGreater than 85% as determined by SDS-PAGE.
Expression SystemE.coli
Expression Region1-98aa
SpeciesHomo sapiens (Human)
Tag InfoN-terminal 6xHis-SUMO-tagged
Molecular weight27.1kDa
ActivityPlease contact us to obtain bioactivity data.
BufferIf the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Research AreasCell Biology

Function

This is an intracellular thiol proteinase inhibitor. Tightly binding reversible inhibitor of cathepsins L, H and B.

Biological Context

Subcellular Location: Cytoplasm; Nucleus
Disease Association: Epilepsy, progressive myoclonic 1 (EPM1) : A form of progressive myoclonic epilepsy, a clinically and genetically heterogeneous group of disorders defined by the combination of action and reflex myoclonus, other types of epileptic seizures, and progressive neurodegeneration and neurocognitive impairment. EPM1 is an autosomal recessive form characterized by severe, stimulus-sensitive myoclonus and tonic-clonic seizures. The onset, occurring between 6 and 13 years of age, is characterized by convulsions. Myoclonus begins 1 to 5 years later. The twitchings occur predominantly in the proximal muscles of the extremities and are bilaterally symmetrical, although asynchronous. At first small, they become late in the clinical course so violent that the victim is thrown to the floor. Mental deterioration and eventually dementia develop. [The disease is caused by variants affecting the gene represented in this entry]

Product Specifications

Recombinant Human Cystatin-B (CSTB) is a recombinant protein from Homo sapiens (Human), expressed in E.coli, covering amino acids 1-98aa, with N-terminal 6xHis-SUMO-tagged tag, molecular weight 27.1kDa, purity Greater than 85% as determined by SDS-PAGE.. Suitable for ELISA and Western Blot applications.

Recommended applications depend on the target, product format, and product-specific validation data. Refer to the product datasheet or Certificate of Analysis (CoA), or contact BioCrest Sci for application guidance.

Biological Activity: Please contact us to obtain bioactivity data.

Storage: Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shipping & Lead Time: Availability, shipping conditions, and estimated lead time are confirmed in the formal quotation or order confirmation based on the product format, destination, and order requirements.

Protein Biology

Function

This is an intracellular thiol proteinase inhibitor. Tightly binding reversible inhibitor of cathepsins L, H and B

Subcellular Location

Cytoplasm; Nucleus

Disease Association

Epilepsy, progressive myoclonic 1 (EPM1) : A form of progressive myoclonic epilepsy, a clinically and genetically heterogeneous group of disorders defined by the combination of action and reflex myoclonus, other types of epileptic seizures, and progressive neurodegeneration and neurocognitive impairment. EPM1 is an autosomal recessive form characterized by severe, stimulus-sensitive myoclonus and tonic-clonic seizures. The onset, occurring between 6 and 13 years of age, is characterized by convulsions. Myoclonus begins 1 to 5 years later. The twitchings occur predominantly in the proximal muscles of the extremities and are bilaterally symmetrical, although asynchronous. At first small, they become late in the clinical course so violent that the victim is thrown to the floor. Mental deterioration and eventually dementia develop. [The disease is caused by variants affecting the gene represented in this entry]

Subunit

Able to form dimers stabilized by noncovalent forces

Gene: CSTB  |  Organism: Homo sapiens  |  Synonyms: CPI-B; Liver thiol proteinase inhibitor; Stefin-B
Key Publications

Frequently Asked Questions

How do I order or inquire about this product?

Submit the Online Inquiry form with your required quantity and specifications, or email sales@biocrestsci.com. Available sizes, pricing, stock status, documentation, and estimated lead time are confirmed in the formal quotation.

What is the shipping and delivery time?

Availability, dispatch timing, shipping conditions, and delivery estimates depend on the product format, destination, and order requirements. These details are confirmed in the formal quotation or order confirmation.

How should this product be stored?

Follow the storage and handling instructions in the product-specific datasheet and Certificate of Analysis (CoA). Requirements may vary by product form and formulation; contact BioCrest Sci if product-specific guidance is needed.

What quality controls are performed on your products?

Quality-control data such as identity, purity, endotoxin level, or biological activity are provided only when specified on this product page, the datasheet, or Certificate of Analysis (CoA). Biological activity is not implied unless explicitly stated.

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